MESON Chess Problem Database
Problem Display
PID: 12185 (8/8/5QR1/8/4pP2/3pkp1K/4B2R/1N6 w - - 0 1)
Belchikov, Nikolai Ivanovich
Petrusenko, Alexey Matveevich
1st Prize, Tikhookeanski Komsomolets, 1975
#2
7 + 4
| 3242 | BCPS Rapid Solving (Cheltenham) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...fxe2
- 2.Rg3#
- 1...fxe2
- Tries
- 1.Kg3?
- threat
- 2.Qb6#
- 1...dxe2
- 2.Qc3#
- 1...f2!
- threat
- 1.Kg4?
- threat
- 2.Qb6#
- 1...dxe2
- 2.Qc3#
- 1...f2!
- threat
- 1.Bd1?
- 1...f2
- 2.Rg3#
- 1...d2!
- 1...f2
- 1.Bf1?
- 1...f2
- 2.Rg3#
- 1...d2!
- 1...f2
- 1.Bxf3?
- 1...Kxf3
- 2.Rg3#
- 1...exf3
- 2.Qe5#
- 1...d2!
- 1...Kxf3
- 1.Rg4?
- threat
- 2.Qb6#
- 1...dxe2
- 2.Qc3#
- 1...fxe2
- 2.Rg3#
- 1...f2!
- threat
- 1.Qd6?
- 1...dxe2
- 2.Qd2#
- 1...fxe2
- 2.Rg3#
- 1...d2
- 2.Qxd2#
- 1...f2!
- 1...dxe2
- 1.Kg3?
- Keys
- 1.Bxd3!
- 1...Kxd3
- 2.Qc3#
- 1...exd3
- 2.Qe5#
- 1...f2
- 2.Rg3#
- 1...Kxd3
- 1.Bxd3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- P(c);OGATEB,XB(B)::R(G)
- Tries
- Try
- K(D);P-FLIGHT
- Threat
- QAB(F)
- Vars
- P(a);OGATEB,XB(B)::QAR2(F)
- Refutation
- P(c);
- Try
- K(D);S_FLIGHT
- Threat
- QAB(F)
- Vars
- P(a);OGATEB,XB(B)::QAR2(F)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- P(c);OGATEB::R(G)
- Refutation
- P(a);
- Try
- B(B);
- Vars
- P(c);OGATEB::R(G)
- Refutation
- P(a);
- Try
- B(B);XP(c)
- Vars
- K(b);OGATEB,P-FLIGHT,XB(B)::R1(G)
- P(d);OGATEB,SBLOCK,XB(B)::QAR2(F)
- Refutation
- P(a);
- Try
- R(G);
- Threat
- QAB(F)
- Vars
- P(a);OGATEB,XB(B)::QAR2(F)
- P(c);OGATEB,XB(B)::R(G)
- Refutation
- P(c);
- Try
- Q(F);
- Vars
- P(a);OGATE,XB(B)::QAB1(F)
- P(c);OGATEB,XB(B)::R(G)
- P(a);OGATE::QAB1(F),XP(a)
- Refutation
- P(c);
- Try
- Actual
- B(B);XP(a)
- Vars
- K(b);OGATEB,P-FLIGHT,XB(B)::QAR1(F)
- P(d);OGATEB,SBLOCK,XB(B)::QAR2(F)
- P(c);OGATEB::R(G)
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