sábado, 27 de julho de 2013

DAMAS para crianças e adolescentes 27


O Jogo de Damas é esporte*
* Resolução nº 18/88 do CND. Ver APÊNDICE V, na 18ª postagem, de NOV.12


DAMAS para crianças e adolescentes  PLANILHA DE COMPETIÇÃO

Árbitro: (a)  __________________________________________________
                                               NOME
Local ______________________________________     Data __|__|__     ►   BRANCAS |    |
                                                                                                                                     PRETAS  |    |
Rodada _____ Tempo: brancas_______   pretas________

Brancas(a) ______________________    Pretas(a)  ___________________________________
NOME                                                                                     NOME

  BRANCAS

01______________                  14______________                  27______________
    02______________                  15______________                  28______________
03______________                  16______________                  29______________
04______________                  17______________                  30______________
05______________                  18______________                  31______________
06______________                  19______________                  32______________
07______________                  20______________                  33______________
08______________                  21______________                  34______________
09______________                  22______________                  35______________
10______________                  23______________                  36______________
11______________                  24______________                  37______________
12______________                  25______________                  38______________
13______________                  26______________                  39______________
     
PRETAS

01______________                  14______________                  27______________
    02______________                  15______________                  28______________
03______________                  16______________                  29______________
04______________                  17______________                  30______________
05______________                  18______________                  31______________
06______________                  19______________                  32______________
07______________                  20______________                  33______________
08______________                  21______________                  34______________
09______________                  22______________                  35______________
10______________                  23______________                  36______________
11______________                  24______________                  37______________
12______________                  25______________                  38______________
13______________                  26______________                  39______________

               

9. Estratégia (continua)
9.1 Meios-de-jogo
10. O Pé-de-Avestruz (continua)
10.1 ─ Três Damas X Dama e pedra
(Dando seguimento a Damas para crianças e adolescentes 3, de DEZ.11. [Ver 2. O Pé-de-Avestruz]).
DESAFIO
I Problemas
II Finais selecionados
PARTIDAS
II Partidas do sistema aberto

 9.1 Meios-de-jogo

(CONTINUAÇÃO de ESTRATÉGIA MEIO-DE-JOGO 4 da postagem 26, de JUL.13)

                                          VARIANTE 1
Jogam as brancas e ganham

                                               1. ...                              b6-c5
                                               2. d2-e3                       c7-b6
                                               3. c3-b4                       b6-a5
            Se 3. ... c5-d4   4. e3xc5 b6xd4   5. b2-c3 d4xb2   6. a3xc1 a7-b6   7. a1-b2 f6-e5   8. f2-e3 e7-d6   9. g1-h2 b6-c5   10. b4-a5 b8-c7  (se 10. ... e5-d4   11. e3-f4 b8-c7   12. h2-g3 X)  11. h2-g3 c7-b6   12. a5xc7 d6xb8   13. b2-c3 b8-c7   14. e3-f4 c7-d6   15. c1-b2 c5-d4   16. g3-h4 e5xg3   17. c3xc7 X.
                                               4. b4xd6                      e7xc5
                                               5. e3-d4                       c5xe3
                                               6. f2xd4                       a7-b6
         Se 6. ... f8-e7   7. d4-e5 f6xd4   8. h6-g7 d4-e3   9. a3-b4 a5x c3   10. b2xf2 X.
                                               7. b2-c3                       b6-c5
         Se 7. ... f8-e7   8. g1-f2 e7-d6   9. d4-e5 f6xb2   10. a3xc1 d6-e5   11. h6-g7 X.
                                               8. d4xb6                      a5xc7
                                                           9. c3-d4                       b8-a7
         Se 9. ... c7-b6   10. a3-b4 f8-e7  (se 10. ... b6-a5   11. b4-c5 X)  11. b4-c5 b6-a5   12. a1-b2 X.
         Se 9. ... f8-e7   10. a1-b2 c7-b6   11. d4-e5 f6xd4   12. h6-g7 d4-e3   13. g7-h8D X.
                                             10. a1-b2                       a7-b6
                                             11. a3-b4                       c7-d6
                                             12. b2-c3                       f8-e7
                                             13. b4-a5                       d6-c5
                                             14. a5xc7                      c5xe3
                                             15. c7-b8D                    X.
(CONTINUA)

10.1 ─ Três Damas X Dama e pedra
(Dando seguimento a Damas para crianças e adolescentes 3, de DEZ.11. [Ver 2. O Pé-de-Avestruz]).
         Em DAMAS para crianças e adolescentes 3, de dezembro de 2011, lhe passamos alguns conhecimentos acerca do Pé-de-Avestruz ─ um método, como é sabido, criado por mim, para solucionar, rapidamente, alguns finais de Damas. (Sugiro que dê uma relida na citada postagem 3, antes de passar para o trabalho, adiante).
         Aqui está um final interessante:

O PÉ-DE-AVESTRUZ EM AÇÃO
1
Você vai ganhar facilmente...

         E você vai aprender, agora ─ a partir dessa posição (apenas um exemplo) ─ como chegar ao Pé-de-Avestruz, que se vê neste diagrama:
... depois de fazer o Pé-de-Avestruz

         E retornemos ao diagrama 1 e vejamos a solução:        
                                               1. g7-h8D                    f8-e7
         Se 1. ... f8-h6   2. e5-f4 h6-f8   3. h8-f6 f8-b4   4. f6-b2 a3xc1D   5. f4-h6 c1xf4   6. h6xa5 X.
         Se 1. ... f8-b4, ver Variante 1.
                                               2. e5-c7                       e7-h4
         Se 2. ... e7-b4   3. c7-a5 X.
         Se 2. ... e7-f8   3. c7-a5 f8-h6   4. h8-c3 h6xb4   5. a5xc3 X.
         Se 2. ... e7-d8   3. c7-a5 d8-h4  (se 3. ... d8-e7   4. e3-c5 X)  4. e3-f2 h4xe1   5. h8-c3 X.
                                               3. h8-e5                       h4-e7
         Se 3. ... h4-e1   4. c7-a5 e1-h4   5. e3-f2 h4xe1   6. e5-c3 X.
         Se 3. ... h4-d8   4. c7-a5 X.
                                               4. c7-a5                       e7-d8
         Se 4. ... e7-f8   5. e3-c5 X.
                                               5. e3-a7                       ...
e está formado o Pé-de-Avestruz.
                                               5. ...                              d8-h4
         Se 5. ... d8-g5   6. a5-b4 a3xc5   7. a7xh6 X.
                                               6. a7-f2                        h4xe1
                                               7. e5-c3                       e1xb4
                                               8. a5xc3                      X.

                                               VARIANTE 1
                                               1. ...                              f8-b4
                                               2. h8-f6                        b4-f8
         Se 2. ... b4-a5   3. f6-d8 a5-e1  (se 3. ... a5-b4   4. d8-a5 h4xe7   5. d8-f6 X)  4. d8-a5 e1-h4   5. e3-f2 X.
         Se 2. ... b4-e1   3. e5-c7 e1-a5  (se 3. ... e1-h4  4. c7-d8 X; se 3. ... e1-b4   4. c7-a5 X)  4. e3-g5 a5xd8   5. g5-h4 d8xg5   6. h4xf6 X.
                                               3. e5-c7                       f8-h6
         Se 3. ... f8-b4   4. c7-a5 X.
                                               4. e3-c1                       h6-f8
                                               5. c1-h6                       f8-c5
                                               6. f6-b2                        a3xc1D
                                               7. c7-f4                        X.

DESAFIO

I Problemas

Recém-publicados na outra seção do blog ─ PROBLEMAS E FINAIS

Solução da postagem anterior

                                               PROBLEMA 63

                                               1. f8-h6                        d4xa1
                                               2. h6-e3                       f2xd4
                                               3. c1-b2                       a1xc3
                                               4. e7-f8                        b4xe7
                                               5. f8xd2                       X.

         Temas: Cavilha Dama Branca, Bloqueio por Intercessão Negra e Finta

64
Jogam as brancas e ganham

        Solução na próxima postagem

II Finais selecionados

Solução da postagem anterior

FINAL SELECIONADO 27

                                                           1. f8-h6!                       a5-b4
         Se 1. ... a7-b6   2. h6-f8! X.

____________________________________________________________                    
            A variante acima é exatamente o final selecionado 25 de DAMAS para crianças e adolescentes 15Ver item 6. Finais selecionados:

25=7

Jogam as brancas e ganham

                                               1. ...                                        a5-b4
            Se 1. ... b6-c5   2. f8xa3 h8-g7   3. a3-b2 g7-h6   4. b2-c3 h6-g5   5. c3-d2 g5-h4   6. d2-e1 X.
                                                           2. f8xa3                                h8-g7
            Se 2. ... b6-a5   3. a3-f8 X.
                                                           3. a3-b2                                g7-h6
                                                           4. b2-d4                               b6-a5
                                                           5. d4-c3                                h6-g5
                                                           6. c3-d2                                g5-h4
                                                           7. d2-e1                                X.

____________________________________________________________

                                               2. h6-d2                       h8-g7
         Se 2. ... b4-a3   3. d2-c3 X.
         Se 2. ... b4-c3   3. d2xa5 h8-g7   4. a5-c3 g7-h6   5. c3-d2 a7-b6   6. d2-e3 b6-a5   7. e3-d2 X.                                     
                                               3. d2xa5                      g7-f6
         Se 3. ... g7-h6    4. a5-d8 X.
                                               4. a5-c3                       f6-g5
                                               5. c3-d2                       g5-h4
                                               6. d2-e1                       a7-b6
                                               7. e1-f2                        b6-a5
                                               8. f2-e1                        X.
                                     
28
Jogam as brancas e ganham

        Solução na próxima postagem


PARTIDAS
II Partidas do sistema aberto

PARTIDA 3
Gambito Kukuiev*
Genaldo X Bakumenko
São Paulo, 04.08.68

                                               1. c3-d4                       f6-g5
                                               2. d4-c5                       b6xd4
                                               3. e3xc5                      d6xb4
                                               4. a3xc5                      g5-f4
                                               5. g3xe5                      c7-b6
                                               6. c5-d6                       e7xc5
                                               7. f2-e3                        c5-b4
                                               8. h2-g3                       f8-e7
                                               9. g1-h2                       b4-a3
                                             10. b2-c3                       g7-f6
                                             11. e5xg7                      h6xf8
                                             12. g3-f4                        h8-g7
                                             13. h2-g3                       g7-f6
                                             14. g3-h4                       b8-c7
                                             15. a1-b2                       c7-d6
                                             16. e3-d4                       b6-c5
                                             17. d4xb6                      a7xc5
                                             18. d2-e3                       f6-e5
                                             19. c3-b4                       e5xg3
                                             20. h4xf2                       e7-f6
                                             21. f2-g3                        f6-e5
                                             22. b2-c3                       c5-d4
                                             23. e3xe7                      a3xc5
                                             24. e1-f2                        d8xf6
                                             25. c1-d2!                      f8-g7
                                             26. g3-h4                       Empate.
         Observação ─ Se as negras tivessem jogado
                                             14. ...                               b6-a5,
brancas
                                             15. a1-b2!,
agora se as negras jogarem
                                            15. ...                                a7-b6,
b8-c7, d8-c7 ou e7-d6 as brancas respondem
                                            16. e3-d4 forte.


______________________________

* Transcrição da p. 79 de Segredos do Jogo de Damas, de Genaldo G. da Silva.


PARTIDA 4
         A partida que segue foi jogada na 2ª rodada do Torneio “Murilo R. Santos”, realizado na Academia Riachuelo em 1970, e comentada por J. Mindello. (Revista Diagonal.)

Reginaldo Cruz X Jorge Moura*

                                               1. c3-d4                       f6-g5
                                               2. b2-c3                       g5-h4
                                               3. c3-b4                       g7-f6
                                               4. b4-c5                       d6xb4
                                               5. a3xc5                      f6-e5!? (1)
                                               6. d4xf6                       b6xd4
                                               7. e3xc5                      e7xg5
                                               8. d2-e3                       f8-e7
                                                           9. a1-b2                       h8-g7
                                             10. e1-d2                       g7-f6
                                             11. b2-a3                       c7-d6
                                             12. c3-b4                       b8-c7
                                             13. b4-a5                       d6xb4
                                             14. a3xc5                      e7-d6
                                             15. c3-b4                       c7-b6!
                                             16. b4-a5                       d6-c5
                                             17. a5xc7                      d8xb6
                                             18. g3-f4 (2)                        b6-a5
                                             19. d2-c3                       a7-b6!
                                                        20. h2-g3                      c5-b4
                                             21. c1-b2! (3)                 b4xd2
                                             22. e3xc1                      g5xe3
                                             23. f2xd4                       h4xf2
                                             24. g1xe3                      h6-g5
                                             25. b2-c3                       b6-c5
                                             26. d4xb6                      a5xc7
                                             27. c3-b4                       f6-e5
                                             28. b4-c5                       e5-d4
com empate.


______________________________

* Transcrição da (extinta) revista Diagonal nº 9, p. 11.
(1) Uma continuação interessante e correta, si considerarmos o adversário contra quem foi jogada. É uma idéia nova; merece estudo.
     Na prática, esta troca é efetuada de outra maneira, como segue:
            5. ...                 f6-g5
            6. a1-b2            e7-f6
            7. d2-c3            f6-e5.
(2) Outras continuações não levam à vitória. Por exemplo: 18. d2-c3 b6-a5;   19. c3-d4 a7-b6!;   20. c1-b2 f6-e5;   21. d4xf6 e7xg5   22. b2-a3 a5-b4! e as pretas conseguem empate.
(3) Se 21. c3-d4? b4-c3!;   22. d4xb2 f6-e5   23. f4xd6 b6-c5   24. d6xb4 a5xa1 com ganho das pretas.