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MatPlus.Net Forum Endgame studies A 2021 New Year sextuple

(1) Posted by Siegfried Hornecker [Friday, Jan 1, 2021 10:42]

### A 2021 New Year sextuple

Enjoy! All composed today (except obviously the one from 1976).

1st theme complex: "Four moves"
(= 5+3 )

White to move and win

Solution (mark to read): 1. h7 Bf6 2. Nc7 Ke5 3. Kb1 Bh8 4. e4 wins

(= 5+3 )

White to move and win
(This idea is where it all started, the rest is just found by playing around and some adjusting the ideas that came up)

Solution (mark to read): 1. e3+ \$1 Bxe3 2. h7 Kxd5 3. Nc7+ Kc4 4. Nb5 wins

(= 5+3 )

White to move and win

Solution (mark to read): 1. Nb6 Be5 2. Kb1 Kc5 3. Nd7+ Kxd5 4. Nxe5 wins

2nd theme complex: "Bishop lost"
(= 3+5 )

Black to move, White draws

Solution (mark to read): 1... Nf3+ 2. Kxe4 Nxh2 3. Kf5 Ng4 4. Kxg4 Nc3 5. Kf5 Nb5 (5... Nd5 6. Ke5 draws) 6. Kf6 Nd6 7. Ke7 f5 8. Kxd6 draws

(= 5+3 )

White to move and win

Solution (mark to read): 1. Nf6+ Kxe5 2. Nxh7 Kf4 3. Ng5 Kxg5 4. Nb5 Kf4 5. Nc3 Kf3 6. Nd1 wins

The highlight out of the six studies (which needs the addition "after Kozirev"):
(= 4+5 )

Black to move, White wins

Solution (mark to read): 1... e3 2. Kd5 e2 3. b6 e1=Q 4. b7+ Ka7 5. b8=Q+ Kxa6 6. Qc8+ Ka5 7. Bc7+ Kb4 8. Bd6+ Ka5/i 9. Qc7+ (or 9. Qc5+ Ka6 10. Qc4+) 9...Ka6 10. Qc4+ Ka7 11. Kc6! Qe8+ 12. Kc7 Qb8+ 13. Kd7 Qb7+ 14. Bc7 Qb2 15. Qa4+ Kb7 16. Bd6! Qb6 (16... Kb6 17. Qc6+ Ka5 18. Qa8+ wins) 17. Qc4! Nf3 18.Qc8+ Ka7 19. Bc5 wins
i - 8... Kb3 9. Qc4+ Kb2 10. Be5+ Ka3 11.Qd3+ \$1 Ka4 12. Qc2+ Kb5 13. Qc4+ wins

End of solution.

Dualistic predecessor study by Kozirev:
(= 4+5 )

V. Kozirev, Thémes-64 20 JT 1976, 1st prize
White to move and win