MESON Chess Problem Database
Problem Display
PID: 48969 (4R2n/8/6p1/1K1kPr1Q/pP1Nr2R/1p1P3B/NB2P3/7q w - - 0 1)
Swindley, Cyril P
Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1978-1979
#2
12 + 8
| 5110 | Bekroonde Problemen | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.dxe4#
- 1...Qc1
- 2.dxe4#
- 1...Qd1
- 2.dxe4#
- 1...Qe1
- 2.dxe4#
- 1...Qf1
- 2.dxe4#
- 1...Qg1
- 2.dxe4#
- 1...Qh2
- 2.dxe4#
- 1...Qxh3
- 2.dxe4#
- 1...Rxe2
- 2.Sc3#
- 1...Re3
- 2.Sc3#
- 1...Rxd4
- 2.Sc3#
- 2.Rxd4#
- 1...Rexe5
- 2.Rd8#
- 1...Rf1
- 2.Be6#
- 2.Rd8#
- 1...Rf2
- 2.Be6#
- 2.Rd8#
- 1...Rf3
- 2.Be6#
- 2.Rd8#
- 2.dxe4#
- 1...Rf4
- 2.Be6#
- 2.Rd8#
- 1...Rfxe5
- 2.Rd8#
- 1...Rf7
- 2.Be6#
- 1...Rf8
- 2.Be6#
- 1...Qa1
- Tries
- 1.Sxb3?
- threat
- 2.Sc3#
- 1...Rxb4+
- 2.Sxb4#
- 1...Rexe5
- 2.Rd4#
- 1...Rfxe5
- 2.Rd8#
- 1...Qc1
- 2.dxe4#
- 1...Qe1
- 2.dxe4#
- 1...Rc4
- 2.dxc4#
- 1...axb3!
- threat
- 1.Sf3?
- threat
- 2.Sc3#
- 2.dxe4#
- 1...Rxb4+
- 2.Sxb4#
- 1...Rxe2
- 2.Sc3#
- 2.Rd4#
- 1...Rxh4
- 2.Sc3#
- 1...Rexe5
- 2.Rd4#
- 1...Rxf3
- 2.Be6#
- 2.Rd8#
- 2.dxe4#
- 1...Rfxe5
- 2.Rd8#
- 1...bxa2
- 2.dxe4#
- 1...Qb1
- 2.Sc3#
- 1...Qc1
- 2.dxe4#
- 1...Qe1
- 2.dxe4#
- 1...Re3
- 2.Sc3#
- 2.Rd4#
- 1...Rc4
- 2.dxc4#
- 1...Rd4
- 2.Sc3#
- 2.Rxd4#
- 1...Ref4
- 2.Sc3#
- 1...Rg4
- 2.Sc3#
- 1...Rff4
- 2.Sc3#
- 2.Be6#
- 2.Rd8#
- 1...Qxf3!
- threat
- 1.Sxf5?
- threat
- 2.Sc3#
- 2.Se7#
- 1...Rxb4+
- 2.Sxb4#
- 1...Qxh3
- 2.Sc3#
- 2.dxe4#
- 1...Rxe5
- 2.Sc3#
- 2.Rd4#
- 2.Rxe5#
- 1...bxa2
- 2.Se7#
- 1...Qc1
- 2.Se7#
- 2.dxe4#
- 1...Qe1
- 2.Se7#
- 2.dxe4#
- 1...Rc4
- 2.Se3#
- 2.Se7#
- 2.dxc4#
- 1...Rg4
- 2.Sc3#
- 2.Se3#
- 1...gxf5!
- threat
- 1.Sc6?
- threat
- 2.Sc3#
- 1...Rxb4+
- 2.Saxb4#
- 2.Scxb4#
- 1...Rexe5
- 2.Rd4#
- 1...Rfxe5
- 2.Rd8#
- 1...Qc1
- 2.dxe4#
- 1...Qe1
- 2.dxe4#
- 1...Rc4
- 2.dxc4#
- 1...bxa2!
- threat
- 1.Rxe4?
- threat
- 2.Sc3#
- 2.Rd8#
- 1...Rxe5
- 2.Rd8#
- 2.Qxe5#
- 1...bxa2
- 2.Rd8#
- 1...Qc1
- 2.Rd8#
- 1...Qe1
- 2.Rd8#
- 1...Rf6
- 2.Sc3#
- 1...Rf7
- 2.Sc3#
- 2.Be6#
- 1...Rf8
- 2.Sc3#
- 2.Be6#
- 1...Sf7
- 2.Sc3#
- 1...Qxe4!
- threat
- 1.Qxf5?
- threat
- 2.Rd8#
- 2.Qe6#
- 2.Qd7#
- 1...Qxh3
- 2.Rd8#
- 2.Qxe4#
- 2.dxe4#
- 1...Rxe5
- 2.Rd8#
- 2.Qd7#
- 2.Qxe5#
- 1...Sf7
- 2.Qe6#
- 2.Qxf7#
- 1...gxf5!
- threat
- 1.Qxh8?
- threat
- 2.Rd8#
- 1...Rxd4
- 2.Sc3#
- 2.Rxd4#
- 1...Rf7
- 2.Be6#
- 1...Rf8
- 2.Be6#
- 1...Rf6!
- threat
- 1.e3?
- threat
- 2.Sc3#
- 1...Rexe5
- 2.Rd8#
- 1...Rfxe5
- 2.Rd8#
- 1...Qc1
- 2.dxe4#
- 1...Qe1
- 2.dxe4#
- 1...bxa2!
- threat
- 1.Sxb3?
- Keys
- 1.Se6!
- threat
- 2.Sc7#
- 1...Rxb4+
- 2.Sxb4#
- 1...Rexe5
- 2.Rd4#
- 1...Rfxe5
- 2.Rd8#
- 1...Qc1
- 2.dxe4#
- 1...Rc4
- 2.dxc4#
- 1...Rf7
- 2.Sc3#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 10
- Sets
- Q(a);N_GUARD::P(D),XR(d)
- Q(a);N_GUARD,XB(E)::P(D),XR(d)
- R(d);XP(C)::S(A)
- R(d);::S(A)
- R(d);SBLOCK,XP(J)::R(L)
- R(f);P_SPINR(f),XP(J)::R(L)
- R(f);OGATE::B(E)
- Tries
- Try
- S(G);XP(b)
- Threat
- S(A)
- Vars
- R(d);CHECK,XP(F)::S(A),XR(d)
- R(d);OGATE,XP(J)::R1(H)
- R(f);P_SPINR(f),XP(J)::R(L)
- Q(a);N_GUARD::P(D),XR(d)
- R(d);OGATE::P(D),XR(d)
- Refutation
- P(c);XS(G)
- Try
- S(G);
- Threat
- DUALS(2)
- Vars
- R(d);CHECK,XP(F)::S(A),XR(d)
- R(d);XR(H)::S(A)
- R(d);OGATE,XP(J)::R1(H)
- R(f);P_SPINR(f),XP(J)::R(L)
- P(b);XS(A)::P(D),XR(d)
- Q(a);::S(A)
- Q(a);::P(D),XR(d)
- R(d);OGATE::P(D),XR(d)
- R(d);::S(A)
- Refutation
- Q(a);XS(G)
- Try
- S(G);XR(f)
- Threat
- DUALS(2)
- Vars
- R(d);CHECK,XP(F)::S(A),XR(d)
- P(b);XS(A)::S(G)
- Refutation
- P(g);XS(G)
- Try
- S(G);
- Threat
- S(A)
- Vars
- R(d);OGATE,XP(J)::R1(H)
- R(f);P_SPINR(f),XP(J)::R(L)
- Q(a);N_GUARD::P(D),XR(d)
- R(d);OGATE::P(D),XR(d)
- Refutation
- P(b);XS(A)
- Try
- R(H);XR(d)
- Threat
- DUALS(2)
- Vars
- P(b);XS(A)::R(L)
- Q(a);::R(L)
- R(f);::S(A)
- S(h);::S(A)
- Refutation
- Q(a);XR(H)
- Try
- Q(K);XR(f)
- Threat
- DUALS(3)
- Refutation
- P(g);XQ(K)
- Try
- Q(K);XS(h)
- Threat
- R(L)
- Vars
- R(f);OGATE::B(E)
- Refutation
- R(f);
- Try
- P(C);
- Threat
- S(A)
- Vars
- R(d);SBLOCK,XP(J)::R(L)
- R(f);P_SPINR(f),XP(J)::R(L)
- Q(a);N_GUARD::P(D),XR(d)
- Refutation
- P(b);XS(A)
- Try
- Actual
- S(G);
- Threat
- S(G)
- Vars
- R(d);CHECK,XP(F)::S(A),XR(d)
- R(d);OGATE,SBLOCK,XP(J)::R1(H)
- R(f);P_SPINR(f),XP(J)::R(L)
- Q(a);N_GUARD::P(D),XR(d)
- R(d);OGATE::P(D),XR(d)
- R(f);::S(A)
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