MESON Chess Problem Database
Problem Display
PID: 266680 (8/R7/3p2pR/4P3/1K1k1P2/P6P/1P2Q3/8 w - - 0 1)
Chandrasekaran, KR
The Problemist, 1997
#2
9 + 3
SOLUTION
- SOUND
- Sets
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...g5
- 2.Rxd6#
- 1...Kd5
- Tries
- 1.Rh4?
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...d5
- 2.f5#
- 1...g5!
- 1...Kd5
- 1.Rxg6?
- threat
- 2.Rxd6#
- 1...Kd5
- 2.Rxd6#
- 2.Qc4#
- 1...dxe5
- 2.Rd6#
- 2.Rd7#
- 1...d5!
- threat
- 1.Ra4?
- 1...Kd5
- 2.Qc4#
- 1...d5
- 2.Kb5#
- 1...g5
- 2.Rxd6#
- 1...dxe5!
- 1...Kd5
- 1.Ra6?
- threat
- 2.Rxd6#
- 1...Kd5
- 2.Rxd6#
- 2.Qc4#
- 1...dxe5
- 2.Rd6#
- 1...d5!
- threat
- 1.Rb7?
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...g5
- 2.Rxd6#
- 1...d5!
- 1...Kd5
- 1.Rc7?
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...g5
- 2.Rxd6#
- 1...d5!
- 1...Kd5
- 1.Rd7?
- threat
- 2.Rxd6#
- 1...Kd5
- 2.Rxd6#
- 2.Qc4#
- 1...d5!
- threat
- 1.Re7?
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...g5
- 2.Rxd6#
- 1...d5!
- 1...Kd5
- 1.Rf7?
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...g5
- 2.Rxd6#
- 1...d5!
- 1...Kd5
- 1.Rg7?
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...g5
- 2.Rxd6#
- 1...d5!
- 1...Kd5
- 1.Rah7?
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...g5
- 2.Rxd6#
- 1...d5!
- 1...Kd5
- 1.Ra8?
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd8#
- 1...g5
- 2.Rxd6#
- 1...d5!
- 1...Kd5
- 1.Qf3?
- 1...dxe5
- 2.Rd7#
- 1...g5
- 2.Rxd6#
- 1...d5!
- 1...dxe5
- 1.b3?
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...g5
- 2.Rxd6#
- 1...d5!
- 1...Kd5
- 1.a4?
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...g5
- 2.Rxd6#
- 1...d5!
- 1...Kd5
- 1.h4?
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...g5
- 2.Rxd6#
- 1...d5!
- 1...Kd5
- 1.f5?
- 1...dxe5
- 2.Rd7#
- 1...gxf5
- 2.Rxd6#
- 1...d5
- 2.Rh4#
- 1...g5
- 2.Rxd6#
- 1...Kd5!
- 1...dxe5
- 1.Rh4?
- Keys
- 1.Kb5!
- 1...Kd5
- 2.Qc4#
- 1...dxe5
- 2.Rd7#
- 1...d5
- 2.Ra4#
- 1...g5
- 2.Rxd6#
- 1...Kd5
- 1.Kb5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Tries
- Try
- R(H);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(b);SBLOCK::R(H)+P(F)
- Refutation
- P(c);
- Try
- R(H);XP(c)
- Threat
- R(H),XP(b)
- Refutation
- P(b);
- Try
- R(I);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);SBLOCK::R(I)+K(E)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);XP(G)
- Try
- R(I);
- Threat
- R(I),XP(b)
- Vars
- P(b);XP(G)::R(I)
- Refutation
- P(b);
- Try
- R(I);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);
- Try
- R(I);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);
- Try
- R(I);P_PINP(b)
- Threat
- R(I),XP(b)
- Refutation
- P(b);
- Try
- R(I);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);
- Try
- R(I);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);
- Try
- R(I);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);
- Try
- R(I);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);
- Try
- R(I);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);
- Try
- Q(B);
- Vars
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);
- Try
- P(A);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);
- Try
- P(C);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);
- Try
- P(D);
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE::R(H),XP(b)
- Refutation
- P(b);
- Try
- P(F);
- Vars
- P(b);OGATEB,XP(G)::R(I)
- P(c);OGATE,XP(F)::R(H),XP(b)
- P(b);SBLOCK::R(H)
- P(c);OGATE::R(H),XP(b)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- K(E);P-FLIGHT
- Vars
- K(a);N_GUARD,P-FLIGHT::QAB1(B)
- P(b);OGATEB,XP(G)::R(I)
- P(b);SBLOCK::R(I)
- P(c);OGATE::R(H),XP(b)
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