MESON Chess Problem Database
Problem Display
PID: 28603 (4R3/BpK2R1B/6N1/3knNp1/3p2n1/3p4/8/2Q5 w - - 0 1)
Shire, David J
British Chess Magazine, 1977
#2
8 + 7
| 3256 | David Shire Selected Chess Problems | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Qh1#
- 1...Sf2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Se3
- 2.Rxe5#
- 1...Sf6
- 2.Rxe5#
- 1...Sh6
- 2.Rxe5#
- 1...Sf3
- 2.Rd7#
- 2.Qc5#
- 1...Sc4
- 2.Qh1#
- 1...Sc6
- 2.Rd7#
- 2.Qc5#
- 1...Sxg6
- 2.Rd7#
- 2.Qc5#
- 1...Sd7
- 2.Rxd7#
- 1...Sxf7
- 2.Qc5#
- 1...Ke4
- Tries
- 1.Kxb7?
- 1...Ke4
- 2.Qh1#
- 2.Qc6#
- 1...Sxg6
- 2.Rd7#
- 2.Qc5#
- 2.Qc6#
- 1...Sxf7
- 2.Qc5#
- 2.Qc6#
- 1...Sf2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Se3
- 2.Rxe5#
- 1...Sf6
- 2.Rxe5#
- 1...Sh6
- 2.Rxe5#
- 1...Sf3
- 2.Rd7#
- 2.Qc5#
- 2.Qc6#
- 1...Sc4
- 2.Qh1#
- 1...Sc6
- 2.Rd7#
- 2.Qc5#
- 2.Qxc6#
- 1...Sd7
- 2.Rxd7#
- 2.Qc6#
- 1...d2!
- 1...Ke4
- 1.Se3+?
- 1...Ke4
- 2.Sh4#
- 2.Sxe5#
- 2.Sf8#
- 2.Sh8#
- 1...Sxe3
- 2.Rxe5#
- 1...dxe3!
- 1...Ke4
- 1.Sg3?
- threat
- 2.Qc5#
- 1...Sc4
- 2.Qh1#
- 1...Sd7
- 2.Rxd7#
- 1...b6!
- threat
- 1.Sxd4?
- threat
- 2.Se7#
- 1...Ke4
- 2.Sf4#
- 1...Sxg6
- 2.Rd7#
- 2.Qc5#
- 1...Sxf7
- 2.Qc5#
- 1...Sf3
- 2.Rd7#
- 2.Qc5#
- 1...Sc4
- 2.Qh1#
- 1...Sc6
- 2.Rd7#
- 2.Qc5#
- 1...Sd7
- 2.Rxd7#
- 1...b6!
- threat
- 1.Sd6?
- threat
- 2.Qc5#
- 1...Sc4
- 2.Qh1#
- 2.Qxc4#
- 1...Sd7
- 2.Qh1#
- 2.Qc4#
- 1...b6!
- threat
- 1.Sg7?
- threat
- 2.Se7#
- 1...Sxg6
- 2.Rd7#
- 2.Qc5#
- 1...Sxf7
- 2.Qc5#
- 1...Sf3
- 2.Rd7#
- 2.Qc5#
- 1...Sc4
- 2.Qh1#
- 1...Sc6
- 2.Rd7#
- 2.Qc5#
- 1...Sd7
- 2.Rxd7#
- 1...Ke4!
- threat
- 1.Sf4+?
- 1...Ke4
- 2.Sxd4#
- 2.Sh4#
- 1...gxf4!
- 1...Ke4
- 1.Sge7+?
- 1...Ke4
- 2.Sg3#
- 2.Sd6#
- 1...Ke6!
- 1...Ke4
- 1.Bb6?
- 1...Ke4
- 2.Qh1#
- 1...Sxg6
- 2.Rd7#
- 2.Qc5#
- 1...Sxf7
- 2.Qc5#
- 1...Sf2
- 2.Rxe5#
- 1...Sh2
- 2.Rxe5#
- 1...Se3
- 2.Rxe5#
- 1...Sf6
- 2.Rxe5#
- 1...Sh6
- 2.Rxe5#
- 1...Sf3
- 2.Rd7#
- 2.Qc5#
- 1...Sc4
- 2.Qh1#
- 1...Sc6
- 2.Rd7#
- 2.Qc5#
- 1...Sd7
- 2.Rxd7#
- 1...d2!
- 1...Ke4
- 1.Rd7+?
- 1...Sxd7
- 2.Bg8#
- 1...Ke4!
- 1...Sxd7
- 1.Qb2?
- threat
- 2.Qxd4#
- 1...Ke4
- 2.Qg2#
- 2.Qxb7#
- 1...Sf3
- 2.Qa2#
- 2.Qb3#
- 2.Qb5#
- 1...Sc6
- 2.Qa2#
- 2.Qb3#
- 2.Qb5#
- 1...Kc4!
- threat
- 1.Qa1?
- threat
- 2.Qxd4#
- 1...Ke4
- 2.Qh1#
- 1...Sf3
- 2.Qa2#
- 1...Sc6
- 2.Qa2#
- 1...Kc4!
- threat
- 1.Kxb7?
- Keys
- 1.Sf8!
- threat
- 2.Se7#
- 1...Ke4
- 2.Se3#
- 1...Sxf7
- 2.Qc5#
- 1...Sf3
- 2.Rd7#
- 2.Qc5#
- 1...Sc4
- 2.Qh1#
- 1...Sc6
- 2.Rd7#
- 2.Qc5#
- 1...Sg6
- 2.Rd7#
- 2.Qc5#
- 1...Sd7
- 2.Rxd7#
- threat
- 1.Sf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- K(d);P_SPINS(e),S_FLIGHT::QAB(A)
- S(c);N_GUARD::R1(H),XS(e)
- S(e);N_GUARD,SBLOCK::QAB(A)
- S(e);N_GUARD::R(F),XS(e)
- S(e);XR(F)::QAR1(A)
- Tries
- Try
- K(E);P-FLIGHT,XP(g)
- Vars
- S(c);N_GUARD::R1(H),XS(e)
- S(e);N_GUARD,SBLOCK::QAB(A)
- Refutation
- P(a);
- Try
- S(B);CHECK
- Vars
- S(c);XS(B)::R1(H),XS(e)
- Refutation
- P(b);XS(B)
- Try
- S(B);
- Threat
- QAR1(A)
- Vars
- S(e);N_GUARD,SBLOCK::QAB(A)
- S(e);N_GUARD::R(F),XS(e)
- Refutation
- P(g);
- Try
- S(B);XP(b)
- Threat
- S(C)
- Vars
- K(d);P_SPINS(e),S_FLIGHT::B(G)+S(C)
- S(e);XR(F)::QAR1(A)
- S(e);N_GUARD,SBLOCK::QAB(A)
- S(e);N_GUARD::R(F),XS(e)
- Refutation
- P(g);
- Try
- S(B);
- Threat
- QAR1(A)
- Refutation
- P(g);
- Try
- S(B);
- Threat
- S(C)
- Vars
- S(e);XR(F)::QAR1(A)
- S(e);N_GUARD,SBLOCK::QAB(A)
- S(e);N_GUARD::R(F),XS(e)
- Refutation
- K(d);P_SPINS(e),S_FLIGHT
- Try
- S(C);CHECK
- Refutation
- P(f);XS(C)
- Try
- S(C);CHECK
- Refutation
- K(d);S_FLIGHT
- Try
- B(D);
- Vars
- K(d);P_SPINS(e),S_FLIGHT::QAB(A)
- S(e);XR(F)::QAR1(A)
- S(c);N_GUARD::R1(H),XS(e)
- S(e);N_GUARD,SBLOCK::QAB(A)
- S(e);N_GUARD::R(F),XS(e)
- Refutation
- P(a);
- Try
- R(F);CHECK
- Vars
- S(e);XR(F)::B(G)
- Refutation
- K(d);P_SPINS(e),S_FLIGHT
- Try
- Q(A);
- Threat
- QAR1(A),XP(b)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(A);
- Threat
- QAR1(A),XP(b)
- Vars
- K(d);P_SPINS(e),S_FLIGHT::QAB(A)
- S(e);N_GUARD::QAB(A)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- S(C);
- Threat
- S(B)
- Vars
- K(d);P_SPINS(e),S_FLIGHT::B(G)+S(B)
- S(e);XR(F)::QAR1(A)
- S(e);N_GUARD,SBLOCK::QAB(A)
- S(e);N_GUARD::R(F),XS(e)
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