MESON Chess Problem Database
Problem Display
PID: 28602 (5nQ1/1b2P3/qR2PP2/1PBkN1Pr/1P3P2/1P2R3/3n3p/3B3K w - - 0 1)
Shire, David J
The Problemist, 1976
#2
15 + 7
| 3256 | David Shire Selected Chess Problems | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Qxb5
- 2.Rd6#
- 1...Qa1
- 2.Rd6#
- 1...Qa2
- 2.Rd6#
- 1...Qa3
- 2.Rd6#
- 1...Qa4
- 2.Rd6#
- 1...Qa5
- 2.Rd6#
- 1...Qa7
- 2.Rd6#
- 1...Qa8
- 2.Rd6#
- 1...Sb1
- 2.Bf3#
- 1...Sf1
- 2.Bf3#
- 1...Sxb3
- 2.Bxb3#
- 2.Bf3#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bf3#
- 2.bxc4#
- 1...Se4
- 2.Rd3#
- 1...Sxe6
- 2.Qxe6#
- 1...Sg6
- 2.Qd8#
- 1...Sd7
- 2.exd7#
- 1...Sh7
- 2.Qd8#
- 1...Qxb5
- Tries
- 1.Sd3?
- threat
- 2.Re5#
- 1...Rxg5
- 2.Qxg5#
- 1...Sxb3
- 2.Bxb3#
- 1...Qa1
- 2.Rd6#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bf3#
- 1...Sg6
- 2.Qd8#
- 1...Sd7
- 2.exd7#
- 1...Se4!
- threat
- 1.Sf3?
- threat
- 2.Re5#
- 1...Rxg5
- 2.Qxg5#
- 1...Sxb3
- 2.Bxb3#
- 1...Sxf3
- 2.Bxf3#
- 1...Qa1
- 2.Rd6#
- 1...Se4
- 2.Rd3#
- 1...Sg6
- 2.Qd8#
- 1...Sd7
- 2.exd7#
- 1...Sc4!
- threat
- 1.Sc4?
- threat
- 2.Re5#
- 1...Rxg5
- 2.Qxg5#
- 1...Sxc4
- 2.Bf3#
- 1...Qa1
- 2.Rd6#
- 1...Sf3
- 2.Bxf3#
- 1...Se4
- 2.Rd3#
- 1...Sg6
- 2.Qd8#
- 1...Sd7
- 2.exd7#
- 1...Sxb3!
- threat
- 1.Sc6?
- threat
- 2.Re5#
- 1...Rxg5
- 2.Qxg5#
- 1...Sxb3
- 2.Bxb3#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bf3#
- 1...Se4
- 2.Rd3#
- 1...Sg6
- 2.Qd8#
- 1...Sd7
- 2.exd7#
- 1...Qa1!
- threat
- 1.Sg6?
- threat
- 2.Re5#
- 1...Sxb3
- 2.Bxb3#
- 1...Sxg6
- 2.Qd8#
- 1...Qa1
- 2.Rd6#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bf3#
- 1...Se4
- 2.Rd3#
- 1...Sd7
- 2.exd7#
- 1...Rxg5!
- threat
- 1.Sd7?
- threat
- 2.Re5#
- 1...Rxg5
- 2.Qxg5#
- 1...Sxb3
- 2.Bxb3#
- 1...Sxd7
- 2.exd7#
- 1...Qa1
- 2.Rd6#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bf3#
- 1...Se4
- 2.Rd3#
- 1...Sg6!
- threat
- 1.Sf7?
- threat
- 2.Re5#
- 1...Rxg5
- 2.Qxg5#
- 1...Sxb3
- 2.Bxb3#
- 1...Qa1
- 2.Rd6#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bf3#
- 1...Se4
- 2.Rd3#
- 1...Sg6
- 2.Qd8#
- 1...Sd7!
- threat
- 1.Bf3+?
- 1...Se4
- 2.Bxe4#
- 2.Rd3#
- 1...Sxf3!
- 1...Se4
- 1.bxa6?
- threat
- 2.Rd6#
- 1...Sc4
- 2.Bf3#
- 2.bxc4#
- 1...Se4
- 2.Rd3#
- 1...Bc6!
- threat
- 1.exf8Q?
- threat
- 2.Qd6#
- 2.Qd8#
- 2.e7#
- 1...Qxb5
- 2.Rd6#
- 2.Qd6#
- 2.e7#
- 1...Rxg5
- 2.Qd6#
- 2.Qd8#
- 1...Bc6
- 2.Qd6#
- 2.e7#
- 1...Qa8
- 2.Rd6#
- 2.Qd6#
- 2.e7#
- 1...Rh7
- 2.Qd6#
- 1...Rh8
- 2.Qd6#
- 2.Qd8#
- 1...Bc8
- 2.Qd6#
- 1...Sc4
- 2.Bf3#
- 2.bxc4#
- 2.e7#
- 1...Se4
- 2.Rd3#
- 2.e7#
- 1...Qxb6!
- threat
- 1.Sd3?
- Keys
- 1.Sg4!
- threat
- 2.Re5#
- 1...Rxg5
- 2.Qxg5#
- 1...Sxb3
- 2.Bxb3#
- 1...Qa1
- 2.Rd6#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bf3#
- 1...Se4
- 2.Rd3#
- 1...Sg6
- 2.Qd8#
- 1...Sd7
- 2.exd7#
- threat
- 1.Sg4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 11
- Sets
- Q(e);N_GUARD,XP(G)::R1(K)
- Q(e);N_GUARD,P_PINB(A)::R1(K)
- Q(e);N_GUARD::R1(K)
- S(a);N_GUARD::B(A)
- S(a);N_GUARD::B(A),XS(a)
- S(a);SBLOCK::R(D)
- S(g);OGATE,P_SPINS(g),XP(L)::QAB1(O),XS(g)
- S(g);OGATE::QAR(O)
- S(g);OGATE::QAB(O)+P(L),XS(g)
- Tries
- Try
- S(I);
- Threat
- R1(D)
- Vars
- R(d);OGATE,XP(J)::QAR(O),XR(d)
- S(a);OGATE,XP(C)::B(A),XS(a)
- Q(e);N_GUARD,P_PINB(A)::R1(K)
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(A)
- S(g);OGATE::QAR(O)
- S(g);OGATE::QAB(O)+P(L),XS(g)
- Refutation
- S(a);
- Try
- S(I);
- Threat
- R1(D)
- Vars
- R(d);OGATE,XP(J)::QAR(O),XR(d)
- S(a);OGATE,XP(C)::B(A),XS(a)
- S(a);OGATE,XS(I)::B(A),XS(a)
- Q(e);N_GUARD,P_PINB(A)::R1(K)
- S(a);SBLOCK::R(D)
- S(g);OGATE::QAR(O)
- S(g);OGATE::QAB(O)+P(L),XS(g)
- Refutation
- S(a);
- Try
- S(I);
- Threat
- R1(D)
- Vars
- R(d);OGATE,XP(J)::QAR(O),XR(d)
- S(a);N_GUARD,XS(I)::B(A)
- Q(e);N_GUARD,P_PINB(A)::R1(K)
- S(a);N_GUARD::B(A),XS(a)
- S(a);SBLOCK::R(D)
- S(g);OGATE::QAR(O)
- S(g);OGATE::QAB(O)+P(L),XS(g)
- Refutation
- S(a);XP(C)
- Try
- S(I);
- Threat
- R1(D)
- Vars
- R(d);OGATE,XP(J)::QAR(O),XR(d)
- S(a);OGATE,XP(C)::B(A),XS(a)
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(A)
- S(a);SBLOCK::R(D)
- S(g);OGATE::QAR(O)
- S(g);OGATE::QAB(O)+P(L),XS(g)
- Refutation
- Q(e);P_PINB(A)
- Try
- S(I);
- Threat
- R1(D)
- Vars
- S(a);OGATE,XP(C)::B(A),XS(a)
- S(g);OGATE,XS(I)::QAR(O)
- Q(e);N_GUARD,P_PINB(A)::R1(K)
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(A)
- S(a);SBLOCK::R(D)
- S(g);OGATE::QAB(O)+P(L),XS(g)
- Refutation
- R(d);XP(J)
- Try
- S(I);
- Threat
- R1(D)
- Vars
- R(d);OGATE,XP(J)::QAR(O),XR(d)
- S(a);OGATE,XP(C)::B(A),XS(a)
- S(g);OGATE,XS(I)::QAB(O)+P(L),XS(g)
- Q(e);N_GUARD,P_PINB(A)::R1(K)
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(A)
- S(a);SBLOCK::R(D)
- Refutation
- S(g);
- Try
- S(I);
- Threat
- R1(D)
- Vars
- R(d);OGATE,XP(J)::QAR(O),XR(d)
- S(a);OGATE,XP(C)::B(A),XS(a)
- Q(e);N_GUARD,P_PINB(A)::R1(K)
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(A)
- S(a);SBLOCK::R(D)
- S(g);OGATE::QAR(O)
- Refutation
- S(g);
- Try
- B(A);CHECK
- Refutation
- S(a);XB(A)
- Try
- P(G);XQ(e)
- Threat
- R1(K)
- Vars
- S(a);SBLOCK::R(D)
- Refutation
- B(f);
- Try
- P(N);XS(g)
- Threat
- DUALS(3)
- Vars
- R(d);::QAR1(N)
- B(f);::QAR1(N)
- Refutation
- Q(e);XR(K)
- Try
- Actual
- S(I);
- Threat
- R1(D)
- Vars
- R(d);OGATE,XP(J)::QAR(O),XR(d)
- S(a);OGATE,XP(C)::B(A),XS(a)
- Q(e);N_GUARD,P_PINB(A)::R1(K)
- S(a);N_GUARD::B(A),XS(a)
- S(a);N_GUARD::B(A)
- S(a);SBLOCK::R(D)
- S(g);OGATE::QAR(O)
- S(g);OGATE::QAB(O)+P(L),XS(g)
Developed and maintained by Brian Stephenson.
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