MESON Chess Problem Database
Problem Display
PID: 42577 (8/4NR2/Np1P3K/1p4Qb/1pk3BR/1p2P3/1r1qP3/4B3 w - - 0 1)
Chepizhni, Viktor Ivanovich
2nd Prize, Due Alfieri, 1982-1983
#2
11 + 8
| 3748 | FIDE Album (1983-1985) | 1992 |
| 6167 | Viktor Chepizhny | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qc1
- 2.Bxh5#
- 2.Be6#
- 2.Rf4#
- 2.Qf4#
- 2.Qd5#
- 1...Qc3
- 2.Be6#
- 2.Qd5#
- 1...Qxe3
- 2.Be6#
- 1...Qd1
- 2.Be6#
- 1...Qc2
- 2.Be6#
- 2.Qd5#
- 1...Qxe2
- 2.Bxe2#
- 2.Qd5#
- 1...Qd3
- 2.Be6#
- 1...Qd4
- 2.Be6#
- 1...Qd5
- 2.Qxd5#
- 1...Qxd6+
- 2.Be6#
- 1...Qc1
- Tries
- 1.Sg6?
- threat
- 2.Rc7#
- 1...Kc3
- 2.Rc7#
- 1...Qxe3
- 2.Be6#
- 1...Qxe2
- 2.Bxe2#
- 1...Qxd6
- 2.Be6#
- 1...Qd4
- 2.Be6#
- 1...Qd5!
- threat
- 1.Sc8?
- threat
- 2.Rc7#
- 1...Qxd6+
- 2.Sxd6#
- 2.Be6#
- 1...Kc3
- 2.Rc7#
- 1...Qxe3
- 2.Be6#
- 1...Qxe2
- 2.Bxe2#
- 1...Qd4
- 2.Be6#
- 1...Qd5
- 2.Sxb6#
- 1...Bxf7!
- threat
- 1.Bxd2?
- threat
- 2.Bxh5#
- 2.Be6#
- 2.Rf4#
- 2.Qf4#
- 2.Qd5#
- 1...Bxg4
- 2.Rxg4#
- 2.Rf4#
- 2.Qf4#
- 2.Qxg4#
- 2.Qd5#
- 1...Bxf7
- 2.Bf3#
- 2.Bh3#
- 2.Bf5#
- 2.Bh5#
- 2.Be6#
- 2.Bd7#
- 2.Bc8#
- 2.Qf4#
- 1...Bg6
- 2.Bf5#
- 2.Be6#
- 2.Qd5#
- 1...Rxd2!
- threat
- 1.Bf5+?
- 1...Kc3
- 2.Sd5#
- 2.Qf6#
- 2.Qg7#
- 1...Qd4
- 2.Bd3#
- 2.Be6#
- 2.Rxd4#
- 1...Bg4!
- 1...Kc3
- 1.Bxh5+?
- 1...Qd4
- 2.Rxd4#
- 2.Qd5#
- 1...Kc3!
- 1...Qd4
- 1.Rf4+?
- 1...Qd4
- 2.Be6#
- 2.Rxd4#
- 2.Qd5#
- 1...Kc3!
- 1...Qd4
- 1.Rf8?
- threat
- 2.Rc8#
- 1...Qxd6+
- 2.Be6#
- 1...Kc3
- 2.Rc8#
- 1...Qxe3
- 2.Be6#
- 1...Qxe2
- 2.Bxe2#
- 2.Qd5#
- 1...Qd4
- 2.Be6#
- 1...Qd5
- 2.Qxd5#
- 1...Be8!
- threat
- 1.Qf4+?
- 1...Qd4
- 2.Be6#
- 2.Qxd4#
- 1...Kc3!
- 1...Qd4
- 1.Qxb5+?
- 1...Kc3
- 2.Qd3#
- 2.Qc6#
- 1...Kxb5!
- 1...Kc3
- 1.Qd5+?
- 1...Kc3
- 2.Qc6#
- 2.Qd3#
- 1...Qxd5!
- 1...Kc3
- 1.Sg6?
- Keys
- 1.Qg8!
- threat
- 2.Qc8#
- 1...Qxe3+
- 2.Rf4#
- 1...Qxd6+
- 2.Be6#
- 1...Kc3
- 2.Qc8#
- 1...Qxe2
- 2.Bxe2#
- 1...Qd4
- 2.Be6#
- 1...Qd5
- 2.Rf4#
- threat
- 1.Qg8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- Q(b);P_PINQ(F),XP(C)::R(E)+B(D),DCHECK
- Q(b);::R(E)+B(D),DCHECK
- Q(b);::B(D)
- Q(b);N_GUARD::QAB1(F),XQ(b)
- Q(b);CHECK,XP(H)::R(E)+B(D),DCHECK
- Tries
- Try
- S(J);
- Threat
- R(K)
- Vars
- K(e);P-FLIGHT,P_SPINQ(b)::R(K)
- Q(b);P_PINQ(F),XP(C)::R(E)+B(D),DCHECK
- Q(b);OGATE,XP(B)::R(E)+B(D),DCHECK,XQ(b)
- Q(b);P_PINS(J),XP(H)::R(E)+B(D),DCHECK
- Q(b);::B(D)
- Refutation
- Q(b);
- Try
- S(J);
- Threat
- R(K)
- Vars
- K(e);P-FLIGHT,P_SPINQ(b)::R(K)
- Q(b);P_PINQ(F),XP(C)::R(E)+B(D),DCHECK
- Q(b);OGATE,XP(B)::R(E)+B(D),DCHECK,XQ(b)
- Q(b);::B(D)
- Q(b);::S(J),XP(h)
- Refutation
- B(g);XR(K)
- Try
- B(A);XQ(b)
- Threat
- DUALS(5)
- Refutation
- R(a);XB(A)
- Try
- B(D);CHECK
- Refutation
- B(g);P_SPINB(g)
- Try
- B(D);CHECK,XB(g)
- Refutation
- K(e);P-FLIGHT,P_SPINQ(b)
- Try
- R(K);CHECK
- Refutation
- K(e);P-FLIGHT,P_SPINQ(b)
- Try
- R(K);
- Threat
- R(K)
- Vars
- Q(b);CHECK,XP(H)::R(E)+B(D),DCHECK
- K(e);P-FLIGHT,P_SPINQ(b)::R(K)
- Q(b);P_PINQ(F),XP(C)::R(E)+B(D),DCHECK
- Q(b);::B(D)
- Q(b);N_GUARD::QAB1(F),XQ(b)
- Refutation
- B(g);
- Try
- Q(F);CHECK
- Refutation
- K(e);P-FLIGHT,P_SPINQ(b)
- Try
- Q(F);CHECK,P_SPINP(C),XP(f)
- Refutation
- K(e);S_FLIGHT,XQ(F)
- Try
- Q(F);CHECK,P_SPINP(C)
- Refutation
- Q(b);N_PINP(C),XQ(F)
- Try
- Actual
- Q(F);P_SPINP(C)
- Threat
- QAR(F)
- Vars
- Q(b);CHECK,XP(C)::QAB(F)+R(K),DCHECK
- Q(b);CHECK,N_PINP(C),XP(H)::R(E)+B(D),DCHECK
- K(e);P-FLIGHT,P_SPINQ(b)::QAR(F)
- Q(b);N_PINP(C),OGATE,XP(B)::R(E)+B(D),DCHECK,XQ(b)
- Q(b);N_PINP(C)::B(D)
- Q(b);N_PINP(C)::R(K)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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