MESON Chess Problem Database
Problem Display
PID: 51299 (b7/4p1r1/p2NP1P1/rpQpkPP1/5NRn/3B4/3B4/2n1b2K w - - 0 1)
Clark, Cecil Henry Douglas
Manchester Guardian, 1956
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Rxg6
- 2.Sf7#
- 1...Rf7
- 2.Sxf7#
- 1...Rg8
- 2.Sf7#
- 1...Bg3
- 2.Bc3#
- 1...Sxd3
- 2.Sxd3#
- 1...b4
- 2.Sc4#
- 1...exd6
- 2.Qe3#
- 1...Rxg6
- Tries
- 1.Se2?
- threat
- 2.Bf4#
- 2.Re4#
- 1...Bxd2
- 2.Re4#
- 1...Sxe2
- 2.Re4#
- 1...Sxd3
- 2.Re4#
- 1...Sxf5
- 2.Re4#
- 1...Sxg6
- 2.Re4#
- 1...exd6
- 2.Bf4#
- 2.Qe3#
- 2.Qd4#
- 1...Bg3
- 2.Bc3#
- 2.Re4#
- 1...Sg2
- 2.Re4#
- 1...Ra4!
- threat
- 1.Sg2?
- threat
- 2.Bf4#
- 2.Re4#
- 1...Bxd2
- 2.Re4#
- 1...Sxd3
- 2.Re4#
- 1...Sxg2
- 2.Re4#
- 1...Sxf5
- 2.Re4#
- 1...Sxg6
- 2.Re4#
- 1...exd6
- 2.Bf4#
- 2.Qe3#
- 2.Qd4#
- 1...Bg3
- 2.Bc3#
- 2.Re4#
- 1...Se2
- 2.Re4#
- 1...Ra4!
- threat
- 1.Sh3?
- threat
- 2.Bf4#
- 2.Re4#
- 1...Bxd2
- 2.Re4#
- 1...Sxd3
- 2.Re4#
- 1...Sxf5
- 2.Re4#
- 1...Sxg6
- 2.Re4#
- 1...exd6
- 2.Bf4#
- 2.Qe3#
- 2.Qd4#
- 1...Bg3
- 2.Bc3#
- 2.Re4#
- 1...Se2
- 2.Re4#
- 1...Sg2
- 2.Re4#
- 1...Ra4!
- threat
- 1.Sxd5?
- threat
- 2.Bf4#
- 2.Re4#
- 1...Bxd5+
- 2.Re4#
- 1...Bxd2
- 2.Re4#
- 1...Sxd3
- 2.Re4#
- 1...Sxf5
- 2.Re4#
- 1...Sxg6
- 2.Re4#
- 1...exd6
- 2.Bf4#
- 2.Qd4#
- 1...Bg3
- 2.Bc3#
- 2.Re4#
- 1...Se2
- 2.Re4#
- 1...Sg2
- 2.Re4#
- 1...Ra4!
- threat
- 1.Sh5?
- threat
- 2.Bf4#
- 2.Re4#
- 1...Bxd2
- 2.Re4#
- 1...Sxd3
- 2.Re4#
- 1...Sxf5
- 2.Re4#
- 1...Sxg6
- 2.Re4#
- 1...exd6
- 2.Bf4#
- 2.Qe3#
- 2.Qd4#
- 1...Bg3
- 2.Bc3#
- 2.Re4#
- 1...Se2
- 2.Re4#
- 1...Sg2
- 2.Re4#
- 1...Ra4!
- threat
- 1.Sb7?
- threat
- 2.Qe3#
- 2.Qxd5#
- 1...Bxd2
- 2.Qxd5#
- 1...Sxd3
- 2.Qxd5#
- 1...Sxf5
- 2.Qxd5#
- 1...Ra4
- 2.Qxd5#
- 1...Bf2
- 2.Qxd5#
- 1...Sg2
- 2.Qxd5#
- 1...b4
- 2.Qe3#
- 1...Bxb7!
- threat
- 1.Se2?
- Keys
- 1.Qc7!
- threat
- 2.Sxb5#
- 1...d4+
- 2.Sb7#
- 1...Kd4
- 2.Qc3#
- 1...Sxd3
- 2.Sxd3#
- 1...Sxf5
- 2.Sxf5#
- 1...exd6
- 2.Qxg7#
- 1...b4
- 2.Sb5#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 3
- REMOVED MATES = 4
- Sets
- R(j);N_GUARD,XP(K)::S(I)
- R(j);N_GUARD::S(I),XR(j)
- R(j);N_GUARD::S(I)
- B(b);N_GUARD::B(B)
- S(a);XB(C)::S(D),XS(a)
- P(e);N_GUARD::S(I)
- P(i);SBLOCK,XS(I)::QAR2(F)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(b);XB(B)::R1(E)
- S(a);XS(D)::R1(E)
- S(a);XB(C)::R1(E)
- S(c);XP(G)::R1(E)
- S(c);XP(K)::R1(E)
- S(c);::R1(E)
- Refutation
- R(d);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(b);XB(B)::R1(E)
- S(a);XB(C)::R1(E)
- S(c);XS(D)::R1(E)
- S(c);XP(G)::R1(E)
- S(c);XP(K)::R1(E)
- S(a);::R1(E)
- Refutation
- R(d);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(b);XB(B)::R1(E)
- S(a);XB(C)::R1(E)
- S(c);XP(G)::R1(E)
- S(c);XP(K)::R1(E)
- S(a);::R1(E)
- S(c);::R1(E)
- Refutation
- R(d);
- Try
- S(D);P_SPINS(D),XP(f)
- Threat
- DUALS(2)
- Vars
- B(k);CHECK,P_SPINB(k),XS(D)::R1(E)
- B(b);XB(B)::R1(E)
- S(a);XB(C)::R1(E)
- S(c);XP(G)::R1(E)
- S(c);XP(K)::R1(E)
- S(a);::R1(E)
- S(c);N_PINS(D)::R1(E)
- Refutation
- R(d);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- B(b);XB(B)::R1(E)
- S(a);XB(C)::R1(E)
- S(c);XP(G)::R1(E)
- S(c);XP(K)::R1(E)
- S(a);::R1(E)
- S(c);::R1(E)
- Refutation
- R(d);
- Try
- S(I);
- Threat
- DUALS(2)
- Vars
- B(b);XB(B)::QAR1(F),XP(f)
- S(a);XB(C)::QAR1(F),XP(f)
- S(c);XP(G)::QAR1(F),XP(f)
- R(d);::QAR1(F),XP(f)
- B(b);::QAR1(F),XP(f)
- S(c);::QAR1(F),XP(f)
- P(e);::QAR2(F)
- Refutation
- B(k);XS(I)
- Try
- Actual
- Q(F);N_PINP(f)
- Threat
- QAB(F)+S(I),XP(e)
- Vars
- P(f);CHECK,SBLOCK::QAB(F)+S(I)
- K(g);S_FLIGHT::QAB1(F)
- S(a);XB(C)::S(D),XS(a)
- S(c);XP(G)::QAB(F)+S(I),XS(c)
- P(i);OGATE,P_SPINP(i),SBLOCK,XS(I)::QAB(F),XR(j)
- P(e);::QAB(F)+S(I)
Developed and maintained by Brian Stephenson.
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