terça-feira, 13 de janeiro de 2015

PROBLEMAS E ESTUDOS + APÊNDICE (II) DA MATÉRIA PUBLICADA NO INÍCIO DESTA SEÇÃO DO BLOG



PARTE 2
PARTE 1 Sumário (ver postagem de DEZ.2014)


                  Problemas

                                                           SOLUÇÃO DO PROBLEMA ANTERIOR

                                                   Problema 81

                                                           1. d2-c3                                b4xd2
                                                           2. e1xg7                               a5-d8
            Se 2. ... a5-b4   3. f2-g1 h4xf2   4. g1xa3 X.
            Se 2. ... a5-d2   3. f2-g1 h4xf2   4. g1xc1 X.
            Se 2. ... e7-f6   3. g7xc3 a5xd2  (se 3. ... a5xe1   4. g3-h2 e1xg3   5. h2xh6 X)  4. f2-g1 h4xf2   5. g1xc1 X.
            Se 2. ... e7-d6   3. g3xb8 a5-d8  (se 3. ... a5-b4  4. g7-f6 g5xe7  5. f2-c5 X)  4. b8-g3 X.
                                                           3. g7-f8                                 g5-f4
            Se 3. ... e7-f6, ver Variante 1.
            Se 3. ... e7-d6   4. f8xa3 d8-f6   5. f2-g1 h4xf2   6. g1xh8 X.
            Se 3. ... d8-a5   4. f8xb4 a5xc3   5. f2-g1 h4xf2   6. g1xa1 X.
                                                           4. g3xe5                               h4-g3
            Se 4. ... e7-d6   5. f8xa3 d8-g5 (se 5. ... d8-a5   6. e5-g3 X)  6. a3-c1 X.
                                                           5. f2xh4                                X.
 
                                                           VARIANTE 1

                                                           3. ...                                       e7-f6
                                                           4. f8-h6                                 d8-e7
            Se 4. ... d8-a5   5. h6xd2 a5xe1   6. g3-h2 e1xg3   7. h2xh8 X.
            Se 4. ... g5-f4   5. g3xh8 X.
            Se 4. ... f6-e5  5. h6xd6 X.
                                                           5. h6xc1                               e7-a3
            Se 5. ... e7-d8   6. c1-b2 f6-g5   7. b2-c3 X.
            Se 5. ... e7-f8  6. c1-b2 f6-g5  (se 6. ... f8-g7  7. g3-e5 f6xd4   8. b2xh8 X)  7. b2-a3 f8-h6   (se 7. ... f8-g7   8. f2-g1 X)   8. a3-f8 X.
            Se 5. ... f6-g5   6. c1xh6 e7-f6   7. f2-g1 X.
                                                           6. g3-h2                                a3-f8
            Se 6. ... a3-e7   7. h2-e5 X.
            Se 6. ... a3-b4   7. c1-d2 b4xg3   8. h2xh8 X.
            Se 6. ... f6-g5   7. c1xh6 h4-g3  (se 7. ... a3-b2   8. h6-g5 X)  8. h2xe5 X.
                                                           7. c1-b2                                f6-g5
                                                           8. f2-e3                                 f8-h6
            Se 8. ... f8-a3   9. e3xh6 a3xc1   10. h2-f4 X.
                                                           9. e3-c1                                g5-f4
            Se 9. ... h4-g3   10. h2xe5 g5-f4   11. e5xg3 X. 
                                                        10. h2xb8                                h6-f8
                                                        11. b2-g7                                 f8xh6
                                                        12. b8-f4                                  X.
  
Temas: Finta, Espelho, Mate em Ângulo, Bloqueio, Cavilha Dama Branca e Vaivém Negro

82


Jogam as brancas e ganham

A solução desse problema, veja na próxima postagem

                   Estudos

                                                           SOLUÇÃO DO ESTUDO ANTERIOR

                                                  Estudo 15

                                                          1. f6-g7                                 d4-c3
            Se 1. ... b2-c3   2. h4-e1 c3-a1  (se 2. ... c3-a5   3. f8-b4 a5xc3   4. e1xb4 d4-e3   5. b4-e1 X;  se 2. ... c3-b2   3. e1-c3 b2-a1   4. c3xf6 X)  3. g7-h8 d4-c3   4. e1xa5 X.
            Se 1. ... b2-a3   2. g7-h8 d4-e3   3. h4-e7 a3-c1   4. h8-b2 c1xa3   5. e7-d6 X.
            Se 1. ... b2-c1   2. g7-h8 d4-e3   3. h4-e7 e3-d2  (se 3. ... c1-d2   4. h8-d4 X)  4. h8-b2   5. e7-d6 X.
            Se 1. ... d4-e3   2. g7-h8 b2-c1/a3   3. h4-e7 X.
            Se 1. ... b2-a1   2. f8-c5 d4xb6   3. g7-h8 X.
                                                           2. f8-a3                                 b2-a1
            Se 2. ... b2-c1   3. g7-h8 c3-d2   4. h4-e1 X.
                                                                                    3. g7-h8                                c3-d2
                                                           4. h4-f6                                 X.

Temas: Mate em Ângulo, Bloqueio Central, Bipolar, Finta, Vaivém Negro e Bloqueio

Estudo 16


Jogam as brancas e ganham

A solução desse estudo será dada na próxima postagem

                                                                                            
APÊNDICE (II)
DA MATÉRIA PUBLICADA NO INÍCIO DESTA SEÇÃO DO BLOG, INTITULADA

O PÉ-DE-AVESTRUZ
VIII – O “Pé-de-Avestruz”
e uma dama e três pedras

2

             Observação ─ Óbvio que o lance inicial só pode ser das brancas.

            Com a Dama em a5:

                                                           1. f8-d6                                 a7-b6
            Se 1. ... a5-e1   2. d6-g3   3. d4-f6 X.
            Se 1. ... a5-d2   2. d4-b6 a7xe7   3. d8xc1 X.
                                                           2. d4xa7                               b8-c7
            Se 2. ... a5-c3   3. d6-b4   4. a7-b6 X.
                                                           3. d6xb8                               a5-c3
                                                           4. a7-c5                                c3-b2
            Se 4. ... h8-g7   5. b8-e5 X.
            Se 4. ... c3-g7   5. c5-f8 X.
                                                           5. d8-h4                                b2-c3
                                                           6. b8-f4!                                c3-b2
            Se 6. ... h8-g7   7. f4-e5 X.
            Se 6. ... c3-g7   7. f4-h6 X.
            Se 6. ... c3-a1   7. c5-a3, etc X.
                                                           7. c5-b4                                b2-a1
                                                           8. b4-a3!                              a1-c3/d4
                                                           9. a3-e7!                              c3-d4/a1
            Se 9. ... h8-g7   10. e7-f6 X.
                                                        10. h4-f6!                                 a1xg7
                                                        11. f4-h6                                  g7-f8
                                                        12. e7-a3                                 h8-g7
                                                        13. h6-e3                                 X.

            Com a Dama em e1:

                                                           1. f8-e7                                  e1-a5
                                                           2. e7-d6                                X.

            Com a Dama em h6:
                                   I

                                                           1. d4-b2                                h6-c1
                                                           2. b2-a3                                c1-h6
                                                           3. a3-c1                                a7-b6
                                                           4. d8xa5                     b8-a7/h8-g7
                                                           5. a5-d2                                X.

                                   II

                                                           1. ...                                       h6-c1
                                                           2. d4-c3                                c1-h6
                                                           3. c3-b2                                X.

3

            
         Nota ─ O texto, adiante, é transcrição do meu livro O Pé-de-Avestruz de volta, p. 66, porém com pequenas alterações.
            “Escapou a Bóia Farias a continuação (...)” ─ escreveu o renomado damista Alberico C. Mota e apresentou esta solução:

            Com a Dama em e1:

                                                           “1. f8-e7!                              b8-a7
            Se 1. ... e1-d2   2. e7-g5 h6xf4   3. d4-g7 X.
                                                           2. e7-h4!                               e1-a5
                                                           3. h4-e1!                               h6-g5
                                                           4. d8xh4                               X.”

            Com a Dama em c1:

                                                           1. d4-e5                                b8-a7
                                                           2. e5-f4                                  X.

4

                                   
                                    I

            Sem comentários.

                                   II

                                                           1. ...                                       h6-g5
                                                           2. f8-b4                                 e1xa5
                                                           3. d4-b6                                a5xc7
                                                           4. b8xh6                               X.

(CONTINUA)

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