MESON Chess Problem Database
Problem Display
PID: 15284 (bn5B/P4BR1/Qb1Pp3/1P1pk2p/1PPR3P/4N3/5P2/7K w - - 0 1)
Narayanan, Chithathuz Gopatan Sathya
4th Place, 02. WCCT, 1980-1983
#2
14 + 7
| 3748 | FIDE Album (1983-1985) | 1992 |
SOLUTION
- SOUND
- Sets
- 1...Kf6
- 2.Rh7#
- 1...Bxd4
- 2.Rg4#
- 1...Ba5
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rgg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rh7#
- 2.Rg8#
- 1...Bc5
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rgg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rh7#
- 2.Rg8#
- 1...Bxa7
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rgg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rh7#
- 2.Rg8#
- 1...Bc7
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rgg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rh7#
- 2.Rg8#
- 1...Bd8
- 2.Rg5#
- 1...dxc4+
- 2.Rg2#
- 1...Kf6
- Tries
- 1.Bxh5?
- threat
- 2.Rd7#
- 1...dxc4+
- 2.Rg2#
- 2.Rb7#
- 1...Kxd6
- 2.axb8Q#
- 2.axb8B#
- 1...Kf6
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rgg4#
- 2.Rg5#
- 2.Rb7#
- 2.Rc7#
- 2.Rd7#
- 2.Re7#
- 2.Rf7#
- 2.Rh7#
- 2.Rg8#
- 1...Bxd4
- 2.Rg4#
- 1...Bd8
- 2.Rg5#
- 2.Re7#
- 1...Sd7
- 2.Rxd7#
- 1...Kxd4!
- threat
- 1.Be8?
- threat
- 2.Rd7#
- 1...dxc4+
- 2.Rg2#
- 2.Rb7#
- 1...Kxd6
- 2.axb8Q#
- 2.axb8B#
- 1...Kf6
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rgg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rb7#
- 2.Rc7#
- 2.Rd7#
- 2.Re7#
- 2.Rh7#
- 2.Rg8#
- 1...Bxd4
- 2.Rg4#
- 1...Bd8
- 2.Rg5#
- 2.Re7#
- 1...Sd7
- 2.Rxd7#
- 1...Kxd4!
- threat
- 1.Bg8?
- threat
- 2.Rd7#
- 1...dxc4+
- 2.Rg2#
- 2.Rb7#
- 1...Kxd6
- 2.axb8Q#
- 2.axb8B#
- 1...Kf6
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rgg4#
- 2.Rg5#
- 1...Bxd4
- 2.Rg4#
- 1...Bd8
- 2.Rg5#
- 2.Re7#
- 1...Sd7
- 2.Rxd7#
- 1...Kxd4!
- threat
- 1.c5?
- threat
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rgg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rh7#
- 2.Rg8#
- 1...Kf6
- 2.Rh7#
- 1...Bd8
- 2.Rg5#
- 1...Sd7
- 2.Rg5#
- 1...Kxd4!
- threat
- 1.axb8Q?
- threat
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rgg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rh7#
- 2.Rg8#
- 1...dxc4+
- 2.Rg2#
- 1...Kf6
- 2.Rh7#
- 1...Bxd4
- 2.Rg4#
- 1...Bd8
- 2.Rg5#
- 1...Kxd4!
- threat
- 1.axb8B?
- threat
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rgg4#
- 2.Rg5#
- 2.Rg6#
- 2.Rh7#
- 2.Rg8#
- 1...dxc4+
- 2.Rg2#
- 1...Kf6
- 2.Rh7#
- 1...Bxd4
- 2.Rg4#
- 1...Bd8
- 2.Rg5#
- 1...Kxd4!
- threat
- 1.Bxh5?
- Keys
- 1.Bg6!
- threat
- 2.Rd7#
- 1...dxc4+
- 2.Rb7#
- 1...Kxd4
- 2.Qa1#
- 1...Kxd6
- 2.axb8Q#
- 2.axb8B#
- 1...Kf6
- 2.Rg8#
- 1...Bxd4
- 2.Rf7#
- 1...Bd8
- 2.Re7#
- 1...Sd7
- 2.Rxd7#
- threat
- 1.Bg6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 4
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(b);S_FLIGHT::B(N)+R(M)
- B(d);XR(F)::B(N)+R(M)
- B(d);::B(N)+R(M),DCHECK
- P(a);CHECK,XP(E)::B(N)+R(M)
- Tries
- Try
- B(L);XP(c)
- Threat
- B(N)+R(M)
- Vars
- K(b);P_SPINB(d),P_SPINP(a),S_FLIGHT,XP(J)::PXS(g)=Q
- B(d);XR(F)::B(N)+R(M)
- S(g);::B(N)+R(M),XS(g)
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- B(L);
- Threat
- B(N)+R(M)
- Vars
- K(b);P_SPINB(d),P_SPINP(a),S_FLIGHT,XP(J)::PXS(g)=Q
- B(d);XR(F)::B(N)+R(M)
- S(g);::B(N)+R(M),XS(g)
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- B(L);
- Threat
- B(N)+R(M)
- Vars
- K(b);P_SPINB(d),P_SPINP(a),S_FLIGHT,XP(J)::PXS(g)=Q
- B(d);XR(F)::B(N)+R(M)
- S(g);::B(N)+R(M),XS(g)
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- P(E);
- Threat
- DUALS(8)
- Vars
- K(b);S_FLIGHT::B(N)+R(M)
- B(d);::B(N)+R(M),DCHECK
- S(g);::B(N)+R(M),DCHECK
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- P(K);XS(g)
- Threat
- DUALS(8)
- Vars
- P(a);CHECK,XP(E)::B(N)+R(M)
- K(b);S_FLIGHT::B(N)+R(M)
- B(d);XR(F)::B(N)+R(M)
- B(d);::B(N)+R(M),DCHECK
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- P(K);XS(g)
- Threat
- DUALS(8)
- Vars
- P(a);CHECK,XP(E)::B(N)+R(M)
- K(b);S_FLIGHT::B(N)+R(M)
- B(d);XR(F)::B(N)+R(M)
- B(d);::B(N)+R(M),DCHECK
- Refutation
- K(b);S_FLIGHT,XR(F)
- Try
- Actual
- B(L);
- Threat
- B(N)+R(M)
- Vars
- P(a);CHECK,XP(E)::B(N)+R(M)
- K(b);OGATEB,S_FLIGHT,XR(F)::QAB(I)
- K(b);P_SPINB(d),P_SPINP(a),S_FLIGHT,XP(J)::PXS(g)=Q
- K(b);S_FLIGHT::B(N)+R(M)
- B(d);SBLOCK,XR(F)::B(N)+R(M)
- B(d);::B(N)+R(M)
- S(g);::B(N)+R(M),XS(g)
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