MESON Chess Problem Database
Problem Display
PID: 86494 (q5B1/2P1b3/3BR3/P2k2r1/3N1P2/1P3Pp1/4N3/R3K3 w Q - 0 1)
Melnichenko, Viktor Oleksandrovich
Bulletin CSK, 1973
#2
12 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qc6
- 2.Rg6#
- 1...Qb7
- 2.Rg6#
- 1...Qxa5+
- 2.Rxa5#
- 1...Qa6
- 2.Rg6#
- 1...Qa7
- 2.Rg6#
- 1...Bxd6
- 2.Re5#
- 1...Bd8
- 2.Rg6#
- 1...Bf8
- 2.Rg6#
- 1...Qc6
- Tries
- 1.Bxe7?
- threat
- 2.Re5#
- 1...Qxa5+
- 2.Rxa5#
- 1...Re5
- 2.Rxe5#
- 1...Qxg8!
- threat
- 1.Rc1?
- threat
- 2.Rc5#
- 1...Bxd6
- 2.Re5#
- 1...Qc6
- 2.Rg6#
- 1...Qa7
- 2.Rg6#
- 1...Qxa5+!
- threat
- 1.Ra4?
- threat
- 2.Sc3#
- 1...Qxa5+
- 2.Rxa5#
- 1...Bxd6
- 2.Re5#
- 1...Qc6
- 2.Rg6#
- 1...Re5!
- threat
- 1.c8Q?
- threat
- 2.Rg6#
- 2.Qc4#
- 2.Qc5#
- 2.Qxa8#
- 1...Qxa5+
- 2.Rxa5#
- 1...Rxg8
- 2.Qc4#
- 2.Qc5#
- 1...Bxd6
- 2.Re5#
- 2.Rg6#
- 2.Qc4#
- 1...Re5
- 2.Qc4#
- 2.Qc5#
- 2.Qxa8#
- 1...Qc6
- 2.Rg6#
- 2.Qxc6#
- 1...Qb7
- 2.Rg6#
- 2.Qxb7#
- 2.Qc4#
- 2.Qc5#
- 1...Qa6
- 2.Rg6#
- 2.Qc5#
- 1...Qa7
- 2.Rg6#
- 2.Qc4#
- 2.Qc6#
- 1...Qb8
- 2.Rg6#
- 2.Qc4#
- 2.Qc5#
- 2.Qc6#
- 1...Rf5
- 2.Rf6#
- 2.Qc4#
- 2.Qc5#
- 2.Qxa8#
- 1...Rg6
- 2.Rxg6#
- 2.Qc4#
- 2.Qc5#
- 2.Qxa8#
- 1...Rg7
- 2.Qc4#
- 2.Qc5#
- 2.Qxa8#
- 1...Bf6
- 2.Qc4#
- 2.Qc5#
- 2.Qxa8#
- 1...Qxc8!
- threat
- 1.c8S?
- threat
- 2.Sb6#
- 2.Sxe7#
- 2.Re5#
- 2.Rg6#
- 1...Qxa5+
- 2.Rxa5#
- 1...Rxg8
- 2.Sb6#
- 2.Sxe7#
- 2.Re5#
- 1...Bxd6
- 2.Re5#
- 1...Re5
- 2.Sb6#
- 2.Sxe7#
- 2.Rxe5#
- 1...Qc6
- 2.Sxe7#
- 2.Re5#
- 2.Rg6#
- 1...Qb7
- 2.Re5#
- 2.Rg6#
- 1...Qa6
- 2.Sxe7#
- 2.Re5#
- 2.Rg6#
- 1...Qa7
- 2.Re5#
- 2.Rg6#
- 1...Qb8
- 2.Sxe7#
- 2.Re5#
- 2.Rg6#
- 1...Rf5
- 2.Sb6#
- 2.Sxe7#
- 2.Re5#
- 2.Rf6#
- 1...Rg6
- 2.Sb6#
- 2.Sxe7#
- 2.Re5#
- 2.Rxg6#
- 1...Rg7
- 2.Sb6#
- 2.Re5#
- 1...Bf6
- 2.Sb6#
- 2.Re5#
- 1...Bd8
- 2.Re5#
- 2.Rg6#
- 1...Bf8
- 2.Sb6#
- 2.Re5#
- 2.Rg6#
- 1...Qxc8!
- threat
- 1.c8R?
- threat
- 2.Rg6#
- 2.Rc5#
- 1...Qxa5+
- 2.Rxa5#
- 1...Rxg8
- 2.Rc5#
- 1...Bxd6
- 2.Re5#
- 2.Rg6#
- 1...Re5
- 2.Rc5#
- 1...Qc6
- 2.Rg6#
- 1...Qa7
- 2.Rg6#
- 1...Rf5
- 2.Rf6#
- 2.Rc5#
- 1...Rg6
- 2.Rxg6#
- 2.Rc5#
- 1...Rg7
- 2.Rc5#
- 1...Bf6
- 2.Rc5#
- 1...Qxc8!
- threat
- 1.Bxe7?
- Keys
- 1.0-0-0!
- threat
- 2.Sc3#
- 1...Qc6+
- 2.Sc2#
- 1...Qxa5
- 2.Rg6#
- 1...Bxd6
- 2.Re5#
- threat
- 1.0-0-0!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- Q(e);N_GUARD::B(L)+R(J)
- Q(e);CHECK,OGATE,XP(H)::R(A),XQ(e)
- B(d);SBLOCK,XB(I)::B(L)+R(J),DCHECK
- B(d);S_CUTQ(e)::B(L)+R(J)
- Tries
- Try
- B(I);XB(d)
- Threat
- B(L)+R(J),DCHECK
- Vars
- Q(e);CHECK,OGATE,XP(H)::R(A),XQ(e)
- R(c);P_PINS(C)::B(L)+R(J),DCHECK,XR(c)
- Refutation
- Q(e);XB(L)
- Try
- R(A);
- Threat
- R1(A)
- Vars
- B(d);SBLOCK,XB(I)::B(L)+R(J),DCHECK
- Q(e);N_GUARD::B(L)+R(J)
- Refutation
- Q(e);CHECK,XP(H)
- Try
- R(A);
- Threat
- S(C)
- Vars
- Q(e);CHECK,OGATE,XP(H)::R(A),XQ(e)
- B(d);SBLOCK,XB(I)::B(L)+R(J),DCHECK
- Q(e);N_GUARD::B(L)+R(J)
- Refutation
- R(c);P_PINS(C)
- Try
- P(K);
- Threat
- DUALS(4)
- Vars
- Q(e);CHECK,OGATE,XP(H)::R(A),XQ(e)
- Refutation
- Q(e);XQ(K)
- Try
- P(K);
- Threat
- DUALS(4)
- Vars
- Q(e);CHECK,OGATE,XP(H)::R(A),XQ(e)
- B(d);XB(I)::B(L)+R(J),DCHECK
- Refutation
- Q(e);XS(K)
- Try
- P(K);
- Threat
- DUALS(2)
- Vars
- Q(e);CHECK,OGATE,XP(H)::R(A),XQ(e)
- R(c);XB(L)::R1(K)
- R(c);P_PINS(C)::R1(K)
- Q(e);::B(L)+R(J)
- R(c);::R1(K)
- B(d);::R1(K)
- Refutation
- Q(e);XR(K)
- Try
- Actual
- K(B);0-0-0
- Threat
- S(C)
- Vars
- Q(e);CHECK,SBLOCK::R(A)+S(F)
- Q(e);N_GUARD,XP(H)::B(L)+R(J)
- B(d);SBLOCK,XB(I)::B(L)+R(J),DCHECK
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