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| Julio Cesar Infantozzi. Código FEN: R1n2N2/4pk1B/2Q1r2B/2K2b2/Rr1n2P1/1q1P1PP1/4N2b/8 w - - 0 1. |
Um dia em 2014, eu encontrei um espetacular mate-em-4 de Ignazio Calvi, no qual as Brancas sacrificam suas últimas três peças pela vitória. Hoje, compartilho este mate-em-16 com vocês. Sim, as Brancas jogam e dão xeque-mate em 16 lances!
(One day in 2014, I found a spectacular mate-in-4 by Ignazio Calvi, in which White sacrifices his last three pieces for the win. Today, I share this mate-in-16 with you. Yes, White to play and give checkmate in 16 moves!)
PCFilho
I'm not touching this one with a thousand-foot pole.
ResponderExcluirIt is indeed a very hard problem.
ExcluirMy first hint comes from Ignazio Calvi's magnificent mate-in-4 problem: throw everything you can in the enemy King!
My second hint, for the beginning: if White sacrifices the Queen with 1. Qe8+!!, Black has to accept it, because if 1. ... Kf6 2. Nd7#.
Solution:
ResponderExcluir1. Qe8+!! Kxe8 (the 1st sacrifice; if 1. ... Kf6 2. Nd7#)
2. Rxc8+ Kf7
3. Bg8+!! Kxg8 (the 2nd sacrifice; if 3. ... Kf6 4. g5+ Ke5 5. Nd7#)
4. Ng6+ Kh7 (if 4. ... Kf7 5. Nh8+!! Kf6 6. Rf8+!! Ke5 7. Bf4#)
5. Rh8+!! Kxg6 (the 3rd sacrifice)
6. Nf4+ Kf6 (if 6. ... Kf7 7. Rf8#)
7. Rf8+ Ke5
8. Bg7+ Rf6
9. Bxf6+!! exf6 (the 4th sacrifice)
10. Re8+ Ne6+ (if 10. ... Be6 11. Ng6#; if 10. ... Qe6 11. Ng6+ Bxg6 12. f4#)
11. Rxe6+!! Qxe6 (the 5th sacrifice; if 11. ... Bxe6 12. Ng6#)
12. Ng6+!! Bxg6 (the 6th sacrifice!)
13. f4+!! Rxf4 (the 7th sacrifice!)
14. gxf4+!! Bxf4 (the 8th sacrifice!)
15. Re4+!! Bxe4 (the 9th sacrifice!)
16. d4#
WOW!
With 9 unbelievable sacrifices, this puzzle holds this blog's record for most sacrifices in a mating sequence. :)
ExcluirO uruguaio Julio César Infantozzi Rossi (1916-1991) foi um brilhante enxadrista e problemista. Médico de profissão, ele representou seu país no match contra a União Soviética em Montevideo, em 1954, e na Olimpíada de Xadrez de Tel Aviv, em 1964.
ResponderExcluirUruguayan Julio César Infantozzi Rossi (1916-1991) was a brilliant chess player and composer. Professionally a doctor, he represented his country in the match against Soviet Union in Montevideo, in 1954, and in the Chess Olympiad of Tel Aviv, in 1964.