MESON Chess Problem Database
Problem Display
PID: 68138 (2b5/b1N1pp1B/2p5/R1n2PPP/1pNBk1KR/1r6/rn1Q4/8 w - - 0 1)
Barron, Philip
Chess, 1949
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.Qf4#
- 1...Re3
- 2.Qxe3#
- 1...Rg3+
- 2.Kxg3#
- 1...Bxf5+
- 2.Bxf5#
- 1...Ba6
- 2.f6#
- 1...Bb7
- 2.f6#
- 1...Sbd3
- 2.Qe3#
- 1...Scd3
- 2.Qe3#
- 1...Sa4
- 2.Re5#
- 1...Sa6
- 2.Re5#
- 1...Se6
- 2.Re5#
- 2.f6#
- 1...Sb7
- 2.Re5#
- 1...Sd7
- 2.f6#
- 1...e5
- 2.Sd6#
- 1...e6
- 2.Sd6#
- 2.f6#
- 1...Rd3
- Tries
- 1.Se5?
- threat
- 2.Qf4#
- 1...Rg3+
- 2.Kxg3#
- 1...Bxf5+
- 2.Bxf5#
- 1...Sbd3
- 2.Qe3#
- 1...Scd3
- 2.Qe3#
- 1...Re3
- 2.Qxe3#
- 1...Se6
- 2.f6#
- 1...Rf3!
- threat
- 1.Bf2?
- threat
- 2.Qd4#
- 1...Rg3+
- 2.Kxg3#
- 1...Bxf5+
- 2.Bxf5#
- 1...Rd3
- 2.Qf4#
- 1...Re3
- 2.Qxe3#
- 1...Sbd3
- 2.Qe3#
- 1...Sca4
- 2.Re5#
- 1...Sa6
- 2.Re5#
- 1...Se6
- 2.Re5#
- 2.f6#
- 1...Sb7
- 2.Re5#
- 1...Sd7
- 2.f6#
- 1...e5
- 2.Sd6#
- 1...Scd3!
- threat
- 1.Bc3?
- threat
- 2.Kg3#
- 2.Qe3#
- 2.Qe2#
- 2.Qd4#
- 1...Bxf5+
- 2.Kg3#
- 2.Bxf5#
- 1...Sxc4
- 2.Kg3#
- 2.Qd4#
- 1...bxc3
- 2.Kg3#
- 2.Qe3#
- 1...Sd1
- 2.Kg3#
- 2.Qd4#
- 1...Sbd3
- 2.Qe3#
- 1...Sba4
- 2.Kg3#
- 2.Qe3#
- 2.Qd4#
- 1...Scd3
- 2.Qg2#
- 1...Sca4
- 2.Kg3#
- 2.Re5#
- 1...Sa6
- 2.Kg3#
- 2.Re5#
- 1...Se6
- 2.Re5#
- 2.f6#
- 1...Sb7
- 2.Kg3#
- 2.Re5#
- 1...Sd7
- 2.Kg3#
- 2.f6#
- 1...e5
- 2.Kg3#
- 2.Sd6#
- 2.Qe3#
- 2.Qe2#
- 1...Rxc3!
- threat
- 1.Be3?
- threat
- 2.Kg3#
- 2.Qd4#
- 1...Bxf5+
- 2.Kg3#
- 2.Bxf5#
- 1...Rxe3
- 2.Qxe3#
- 1...Sxc4
- 2.Qd4#
- 1...Rd3
- 2.Kg3#
- 2.Qg2#
- 1...Scd3
- 2.Qg2#
- 1...Sca4
- 2.Kg3#
- 2.Re5#
- 1...Sa6
- 2.Kg3#
- 2.Re5#
- 1...Se6
- 2.Re5#
- 2.f6#
- 1...Sb7
- 2.Kg3#
- 2.Re5#
- 1...Sd7
- 2.Kg3#
- 2.f6#
- 1...e5
- 2.Kg3#
- 2.Sd6#
- 1...Sbd3!
- threat
- 1.Bxc5?
- threat
- 2.Qd4#
- 1...Rg3+
- 2.Kxg3#
- 1...Bxf5+
- 2.Bxf5#
- 1...Rd3
- 2.Qf4#
- 1...Sd3
- 2.Qe3#
- 1...e5
- 2.Sd6#
- 1...Bxc5!
- threat
- 1.Bg7?
- threat
- 2.Qd4#
- 1...Rg3+
- 2.Kxg3#
- 1...Bxf5+
- 2.Bxf5#
- 1...Rd3
- 2.Qf4#
- 1...Sbd3
- 2.Qe3#
- 1...Scd3
- 2.Qg2#
- 1...Sca4
- 2.Re5#
- 1...Sa6
- 2.Re5#
- 1...Se6
- 2.Re5#
- 2.f6#
- 1...Sb7
- 2.Re5#
- 1...Sd7
- 2.f6#
- 1...e5
- 2.Sd6#
- 1...f6!
- threat
- 1.Bh8?
- threat
- 2.Qd4#
- 1...Rg3+
- 2.Kxg3#
- 1...Bxf5+
- 2.Bxf5#
- 1...Rd3
- 2.Qf4#
- 1...Sbd3
- 2.Qe3#
- 1...Scd3
- 2.Qg2#
- 1...Sca4
- 2.Re5#
- 1...Sa6
- 2.Re5#
- 1...Se6
- 2.Re5#
- 2.f6#
- 1...Sb7
- 2.Re5#
- 1...Sd7
- 2.f6#
- 1...e5
- 2.Sd6#
- 1...f6!
- threat
- 1.Qe2+?
- 1...Re3
- 2.Qxe3#
- 1...Kxd4!
- 1...Re3
- 1.Se5?
- Keys
- 1.Bg1!
- threat
- 2.Qd4#
- 1...Rg3+
- 2.Kxg3#
- 1...Bxf5+
- 2.Bxf5#
- 1...Rd3
- 2.Qf4#
- 1...Re3
- 2.Qxe3#
- 1...Sbd3
- 2.Qe3#
- 1...Scd3
- 2.Qg2#
- 1...Sca4
- 2.Re5#
- 1...Sa6
- 2.Re5#
- 1...Se6
- 2.Re5#
- 2.f6#
- 1...Sb7
- 2.Re5#
- 1...Sd7
- 2.f6#
- 1...e5
- 2.Sd6#
- threat
- 1.Bg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- R(c);SBLOCK::QAR1(A)
- R(c);N_GUARD::QAR1(A),XR(c)
- R(c);CHECK::R(E)+K(D),XR(c)
- B(k);CHECK,OGATE,P_SPINB(k),XP(G)::B(K),XB(k)
- B(k);N_PINP(G)::B(K)+P(G)
- S(b);S_CUTR(c)::QAR1(A)
- S(f);S_CUTR(c)::QAR1(A)
- S(f);OGATE::R1(F)
- S(f);N_PINP(G)::B(K)+P(G)
- P(i);N_GUARD::S(B)
- Tries
- Try
- S(B);
- Threat
- QAR1(A)
- Vars
- R(c);CHECK::R(E)+K(D),XR(c)
- B(k);CHECK,OGATE,P_SPINB(k),XP(G)::B(K),XB(k)
- S(b);S_CUTR(c)::QAR1(A)
- S(f);S_CUTR(c)::QAR1(A)
- R(c);N_GUARD::QAR1(A),XR(c)
- S(f);N_PINP(G)::B(K)+P(G)
- Refutation
- R(c);
- Try
- B(C);
- Threat
- QAR1(A)
- Vars
- R(c);CHECK::R(E)+K(D),XR(c)
- B(k);CHECK,OGATE,P_SPINB(k),XP(G)::B(K),XB(k)
- R(c);SBLOCK::QAR1(A)
- R(c);N_GUARD::QAR1(A),XR(c)
- S(b);S_CUTR(c)::QAR1(A)
- S(f);OGATE::R1(F)
- S(f);N_PINP(G)::B(K)+P(G)
- P(i);N_GUARD,SBLOCK::S(B)
- Refutation
- S(f);
- Try
- B(C);
- Threat
- DUALS(4)
- Vars
- S(b);::QAR1(A)
- S(f);SBLOCK::QAB(A)
- Refutation
- R(c);XB(C)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(c);OGATE,XB(C)::QAR1(A),XR(c)
- S(b);XS(B)::QAR1(A)
- S(f);SBLOCK::QAB(A)
- Refutation
- S(b);
- Try
- B(C);XS(f)
- Threat
- QAR1(A)
- Vars
- R(c);CHECK::R(E)+K(D),XR(c)
- B(k);CHECK,OGATE,P_SPINB(k),XP(G)::B(K),XB(k)
- R(c);SBLOCK::QAR1(A)
- S(b);S_CUTR(c)::QAR1(A)
- P(i);N_GUARD,SBLOCK::S(B)
- Refutation
- B(h);XB(C)
- Try
- B(C);
- Threat
- QAR1(A)
- Vars
- R(c);CHECK::R(E)+K(D),XR(c)
- B(k);CHECK,OGATE,P_SPINB(k),XP(G)::B(K),XB(k)
- R(c);SBLOCK::QAR1(A)
- S(b);S_CUTR(c)::QAR1(A)
- S(f);SBLOCK,S_CUTR(c)::QAB(A)
- S(f);OGATE::R1(F)
- S(f);N_PINP(G)::B(K)+P(G)
- P(i);N_GUARD::S(B)
- Refutation
- P(j);
- Try
- B(C);
- Threat
- QAR1(A)
- Vars
- R(c);CHECK::R(E)+K(D),XR(c)
- B(k);CHECK,OGATE,P_SPINB(k),XP(G)::B(K),XB(k)
- R(c);SBLOCK::QAR1(A)
- S(b);S_CUTR(c)::QAR1(A)
- S(f);SBLOCK,S_CUTR(c)::QAB(A)
- S(f);OGATE::R1(F)
- S(f);N_PINP(G)::B(K)+P(G)
- P(i);N_GUARD::S(B)
- Refutation
- P(j);
- Try
- Q(A);CHECK
- Vars
- R(c);N_GUARD,P_SPINR(c)::QAR1(A),XR(c)
- Refutation
- K(e);P-FLIGHT,XB(C)
- Try
- Actual
- B(C);
- Threat
- QAR1(A)
- Vars
- R(c);CHECK::R(E)+K(D),XR(c)
- B(k);CHECK,OGATE,P_SPINB(k),XP(G)::B(K),XB(k)
- R(c);SBLOCK::QAR1(A)
- R(c);N_GUARD::QAR1(A),XR(c)
- S(b);S_CUTR(c)::QAR1(A)
- S(f);SBLOCK,S_CUTR(c)::QAB(A)
- S(f);OGATE::R1(F)
- S(f);N_PINP(G)::B(K)+P(G)
- P(i);N_GUARD,SBLOCK::S(B)
Developed and maintained by Brian Stephenson.
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