studio n°25

1...h5-h4 2.De4-c6+ g7-g6 3.Dc6-e4 h4-h3 4.De4xf4+ e5xf4 1/2-1/2

studio n°26

1.Cb3xc5+ Rd3-c4+ 2.Ad1-b3+ Te3xb3+ 3.a2xb3+ Dg3xb3+ 4.Cc5xb3+ 1-0

studio n°27

1.Tf1-f8+ Rb8-a7 2.Tf8-a8+ Ra7xa8 3.Db4-f8+ Ra8-a7 4.Df8-c5+ Dg5xc5 1/2-1/2

studio n°28

1.Dg5-e7+ Rg7-h6 2.De7-h4+ Rh6-g7 3.Dh4-d4+ Rg7-h6 4.Dd4-f4+ Rh6-g7 5.Df4-e5+ Rg7-h6 6.Tf5-h5+ g6xh5 7.De5-f6# 1-0

studio n°29

1.Td7-c7 Te8-d8 2.Cg4xf6 Td8-d1+ 3.Dh5xd1 g7xf6 4.Tc7xc8+ 1-0

studio n°30

1.Tg4xg7+ Tg8xg7 2.Th5xh6+ Rh7-g8 3.Th6xf6 1-0

studio n°31

1.Tf3-g3 g6xh5 2.Tg3-g7+ Rh7-h8 3.Tg7xe7+ Tf8-f6 4.Ad4xf6+ Rh8-g8 5.Th1-g1+ Rg8-f8 6.Te7xc7 1-0

studio n°32

1.Tf3-g3 g6xh5 2.Tg3-g7+ Rh7-h8 3.Tg7xe7+ Tf8-f6 4.Ad4xf6+ Rh8-g8 5.Th1-g1+ Rg8-f8 6.Te7xc7 1-0