MESON Chess Problem Database
Problem Display
PID: 45969 (3q4/5R2/4r3/1Q3R2/3Pk3/4NN2/B1n3nr/2B3Kb w - - 0 1)
Reeves, Alfred Christopher
2nd Sp. Comm., The Problemist, 2002
#2
9 + 7
| 56 | The Problemist | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Qh4
- 2.Bd5#
- 1...Qa5
- 2.Bd5#
- 1...Qg5
- 2.Bd5#
- 1...Qb6
- 2.Bd5#
- 1...Qf6
- 2.Bd5#
- 1...Qc7
- 2.Bd5#
- 1...Qe7
- 2.Bd5#
- 1...Qxd4
- 2.Sg5#
- 1...Qd5
- 2.Bxd5#
- 1...Qb8
- 2.Bd5#
- 1...Qc8
- 2.Bd5#
- 1...Qe8
- 2.Bd5#
- 1...Qf8
- 2.Bd5#
- 1...Qg8
- 2.Bd5#
- 1...Qh8
- 2.Bd5#
- 1...Re5
- 2.Rxe5#
- 1...Ra6
- 2.Re5#
- 1...Rb6
- 2.Re5#
- 1...Rc6
- 2.Re5#
- 1...Rd6
- 2.Re5#
- 1...Rg6
- 2.Re5#
- 1...Rh6
- 2.Re5#
- 1...Se1
- 2.Rf4#
- 1...Sxe3
- 2.Rf4#
- 1...Sf4
- 2.Rxf4#
- 1...Sh4
- 2.Rf4#
- 1...Qh4
- Tries
- 1.Sd1?
- threat
- 2.Sf2#
- 2.Sc3#
- 1...Sf4
- 2.Rxf4#
- 1...Qh4
- 2.Sc3#
- 2.Bd5#
- 1...Qa5
- 2.Sf2#
- 2.Bd5#
- 1...Qc7
- 2.Sf2#
- 2.Bd5#
- 1...Qc8
- 2.Sf2#
- 2.Bd5#
- 1...Rc6
- 2.Sf2#
- 2.Re5#
- 1...Sge1
- 2.Sc3#
- 2.Rf4#
- 1...Sge3
- 2.Sc3#
- 2.Rf4#
- 1...Sh4
- 2.Sc3#
- 2.Rf4#
- 1...Qxd4+!
- threat
- 1.Sxc2?
- threat
- 2.Sd2#
- 1...Sf4
- 2.Rxf4#
- 1...Qa5
- 2.Sg5#
- 2.Bd5#
- 1...Qg5
- 2.Sxg5#
- 2.Bd5#
- 1...Se1
- 2.Rf4#
- 1...Se3
- 2.Rf4#
- 1...Sh4
- 2.Rf4#
- 1...Qxd4+!
- threat
- 1.Sg4?
- threat
- 2.Sf2#
- 1...Sf4
- 2.Rxf4#
- 1...Qh4
- 2.Bd5#
- 1...Sge1
- 2.Rf4#
- 1...Sge3
- 2.Rf4#
- 1...Sh4
- 2.Rf4#
- 1...Qxd4+!
- threat
- 1.Sg5+?
- 1...Kxd4
- 2.Qc4#
- 1...Qxg5!
- 1...Kxd4
- 1.Qc4?
- threat
- 2.Qxc2#
- 1...Qxd4
- 2.Sg5#
- 1...Scxe3
- 2.Sd2#
- 1...Sxd4
- 2.Bb1#
- 1...Sgxe3
- 2.Rf4#
- 1...Sf4
- 2.Rxf4#
- 1...Qc7
- 2.Sg5#
- 1...Qc8
- 2.Sg5#
- 1...Rc6
- 2.Re5#
- 1...Sa1
- 2.d5#
- 1...Sce1
- 2.d5#
- 1...Sb4
- 2.d5#
- 1...Sge1
- 2.Rf4#
- 1...Sh4
- 2.Rf4#
- 1...Sa3!
- threat
- 1.Qc6+?
- 1...Kd3
- 2.Qxc2#
- 1...Qd5
- 2.Qxc2#
- 1...Rxc6!
- 1...Kd3
- 1.Sd1?
- Keys
- 1.Qe2!
- threat
- 2.Qxc2#
- 1...Qxd4
- 2.Sg5#
- 1...Scxe3
- 2.Bb1#
- 1...Sxd4
- 2.Sd2#
- 1...Sgxe3
- 2.Rf4#
- 1...Qc7
- 2.Bd5#
- 1...Qc8
- 2.Bd5#
- 1...Rc6
- 2.Re5#
- 1...Sa1
- 2.Sxg2#
- 1...Sce1
- 2.Sxg2#
- 1...Sa3
- 2.Sxg2#
- 1...Sb4
- 2.Sxg2#
- 1...Sge1
- 2.Rf4#
- 1...Sf4
- 2.Rxf4#
- 1...Sh4
- 2.Rf4#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 18
- Sets
- Q(g);N_GUARD::B(C)
- Q(g);N_GUARD,P_PINS(D),SBLOCK,XP(F)::S(E)
- Q(g);N_GUARD::B(C),XQ(g)
- R(f);N_GUARD::R1(H),XR(f)
- R(f);N_GUARD::R1(H)
- S(c);N_GUARD::R1(H)
- S(c);N_GUARD,XS(D)::R1(H)
- S(c);N_GUARD::R1(H),XS(c)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::R1(H),XS(c)
- Refutation
- Q(g);CHECK,XP(F)
- Try
- S(D);XS(b)
- Threat
- S(E)
- Vars
- S(c);N_GUARD::R1(H),XS(c)
- S(c);N_GUARD::R1(H)
- Refutation
- Q(g);CHECK,XP(F)
- Try
- S(D);
- Threat
- S(D)
- Vars
- S(c);N_GUARD::R1(H),XS(c)
- Q(g);N_GUARD::B(C)
- S(c);N_GUARD::R1(H)
- Refutation
- Q(g);CHECK,XP(F)
- Try
- S(E);CHECK
- Vars
- K(e);P-FLIGHT,XP(F)::QAR1(G)
- Refutation
- Q(g);XS(E)
- Try
- Q(G);
- Threat
- QAB(G),XS(b)
- Vars
- Q(g);N_GUARD,P_PINS(D),P_SPINQ(g),XP(F)::S(E)
- S(b);SBLOCK,XS(D)::S(E)
- S(b);OGATEB,P_SPINS(b),XP(F)::B(C)
- S(c);N_GUARD,XS(D)::R1(H)
- S(c);N_GUARD::R1(H),XS(c)
- Q(g);N_GUARD::S(E)
- R(f);N_GUARD::R1(H)
- S(b);N_GUARD::QAR(G)+P(F)
- S(c);N_GUARD::R1(H)
- Refutation
- S(b);
- Try
- Q(G);CHECK
- Vars
- K(e);S_FLIGHT::QAB1(G),XS(b)
- Q(g);P_SPINQ(g)::QAB(G),XS(b)
- Refutation
- R(f);XQ(G)
- Try
- Actual
- Q(G);
- Threat
- QAB(G),XS(b)
- Vars
- Q(g);N_GUARD,P_PINS(D),SBLOCK,XP(F)::S(E)
- S(b);OGATEB,P_SPINS(b),XS(D)::B(C)
- S(b);SBLOCK,XP(F)::S(E)
- S(c);N_GUARD,P_SPINS(c),XS(D)::R1(H)
- Q(g);N_GUARD::B(C)
- R(f);N_GUARD::R1(H)
- S(b);N_GUARD::QAR(G)+S(D),XS(c)
- S(c);N_GUARD::R1(H)
- S(c);N_GUARD::R1(H),XS(c)
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