MESON Chess Problem Database
Problem Display
PID: 254474 (8/3p3K/3B2p1/3R4/3rkN1n/2bR4/Q2PP1nN/6q1 w - - 0 1)
den Toom, Cornelis
Schakend Nederland, 1979
#2
9 + 8
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rxd3
- 2.exd3#
- 1...Rxd5
- 2.Qxd5#
- 1...Sxf4
- 2.Re5#
- 1...Sf3
- 2.exf3#
- 1...Rxd3
- Tries
- 1.Sh3?
- threat
- 2.Sg5#
- 2.Re5#
- 1...Qxh2
- 2.Sf2#
- 2.Sg5#
- 1...Rxd3
- 2.Sg5#
- 2.exd3#
- 1...Rxd5
- 2.Qxd5#
- 1...Bxd2
- 2.Re5#
- 1...Ra4
- 2.Sg5#
- 1...Qe3
- 2.Re5#
- 1...Rb4
- 2.Sg5#
- 1...Rc4
- 2.Sg5#
- 1...Se1
- 2.Re5#
- 1...Se3
- 2.Re5#
- 1...Sf4
- 2.Re5#
- 1...g5
- 2.Sxg5#
- 2.Re5#
- 1...Sf3!
- threat
- 1.Sh5?
- threat
- 2.Sg3#
- 2.Sf6#
- 2.Re5#
- 1...Qxh2
- 2.Sf6#
- 1...Rxd3
- 2.exd3#
- 1...Rxd5
- 2.Sg3#
- 2.Qxd5#
- 1...Ra4
- 2.Sg3#
- 1...Qf2
- 2.Re5#
- 1...Qe3
- 2.Sf6#
- 2.Re5#
- 1...Qe1
- 2.Sf6#
- 2.Re5#
- 1...Qf1
- 2.Sg3#
- 2.Re5#
- 1...Rb4
- 2.Sg3#
- 1...Rc4
- 2.Sg3#
- 1...Se1
- 2.Sf6#
- 2.Re5#
- 1...Se3
- 2.Sf6#
- 2.Re5#
- 1...Sf4
- 2.Sf6#
- 2.Re5#
- 1...Sf3
- 2.Sg3#
- 2.Sf6#
- 1...Sf5
- 2.Sf6#
- 2.Re5#
- 1...gxh5!
- threat
- 1.Se6?
- threat
- 2.Sc5#
- 2.Sg5#
- 2.Re5#
- 1...Qxh2
- 2.Sc5#
- 2.Sg5#
- 1...Rxd3
- 2.Sg5#
- 2.exd3#
- 1...Rxd5
- 2.Qxd5#
- 1...Bxd2
- 2.Sc5#
- 2.Re5#
- 1...Ra4
- 2.Sg5#
- 1...Qe3
- 2.Sc5#
- 2.Re5#
- 1...Rb4
- 2.Sg5#
- 1...Rc4
- 2.Sg5#
- 1...Bb4
- 2.Sg5#
- 2.Re5#
- 1...Se1
- 2.Sc5#
- 2.Re5#
- 1...Se3
- 2.Sc5#
- 2.Re5#
- 1...Sf4
- 2.Sc5#
- 2.Re5#
- 1...Sf3
- 2.Sc5#
- 1...g5
- 2.Sc5#
- 2.Sxg5#
- 2.Re5#
- 1...dxe6!
- threat
- 1.Rf3?
- threat
- 2.Re5#
- 1...Rxd5
- 2.Qxd5#
- 1...Sxf3
- 2.exf3#
- 1...Ra4
- 2.Qc2#
- 2.d3#
- 1...Rd3
- 2.exd3#
- 1...Rb4
- 2.Qc2#
- 2.d3#
- 1...Rc4
- 2.Qc2#
- 2.d3#
- 1...Rxd2!
- threat
- 1.R3xd4+?
- 1...Bxd4
- 2.Qc2#
- 1...Qxd4!
- 1...Bxd4
- 1.Qc2?
- threat
- 2.Re3#
- 2.R3xd4#
- 1...Rxd3
- 2.Qxd3#
- 2.exd3#
- 1...Rxd5
- 2.Rxd5#
- 1...Sxf4
- 2.R3xd4#
- 2.Re5#
- 1...Ra4
- 2.Rxc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.R3d4#
- 1...Qe3
- 2.Rxe3#
- 2.R3xd4#
- 1...Rb4
- 2.Rxc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.R3d4#
- 1...Rc4
- 2.Rxc3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.R3d4#
- 1...Se3
- 2.Rxe3#
- 2.R3xd4#
- 1...Bxd2!
- threat
- 1.Sh3?
- Keys
- 1.Qa8!
- threat
- 2.Qe8#
- 1...Rxd3
- 2.exd3#
- 1...Rxd5
- 2.Qxd5#
- 1...Sxf4
- 2.Re5#
- 1...Ra4
- 2.Ra5#
- 1...Rb4
- 2.Rb5#
- 1...Rc4
- 2.Rc5#
- 1...Sf3
- 2.exf3#
- 1...Sf5
- 2.R5xd4#
- threat
- 1.Qa8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(d);OGATE,XR(E)::P(C),XR(d)
- R(d);OGATE,XR(G)::QAB1(A),XR(d)
- S(b);SBLOCK,XS(F)::R1(G)
- S(f);OGATE::P(C),XS(f)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(d);OGATE,XR(G)::QAB1(A),XR(d)
- B(c);XP(B)::R1(G)
- R(d);::S(F)
- Q(a);::R1(G)
- S(b);::R1(G)
- Refutation
- S(f);
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- Q(a);XS(D)::S(F)
- R(d);OGATE,XR(E)::P(C),XR(d)
- R(d);::S(F)
- Q(a);::R1(G)
- Refutation
- P(g);XS(F)
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- R(d);OGATE,XR(G)::QAB1(A),XR(d)
- R(d);::S(F)
- S(f);::S(F)
- Refutation
- P(h);XS(F)
- Try
- R(E);
- Threat
- R1(G)
- Vars
- R(d);OGATE,XR(G)::QAB1(A),XR(d)
- S(f);OGATE,XR(E)::P(C),XS(f)
- R(d);OGATE::P(C),XR(d)
- Refutation
- R(d);XP(B)
- Try
- R(E);CHECK,XR(d)
- Vars
- B(c);XR(E)::QAB(A)
- Refutation
- Q(a);XR(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(d);OGATE,XR(G)::QAB(A)+R(E),XR(d)
- Refutation
- B(c);XP(B)
- Try
- Actual
- Q(A);
- Threat
- QAR(A)
- Vars
- R(d);OGATE,XR(E)::P(C),XR(d)
- R(d);OGATE,P_SPINR(d),XR(G)::QAB1(A),XR(d)
- S(b);SBLOCK,XS(F)::QAB(A)+R(G),DCHECK
- R(d);N_GUARD::QAB(A)+R(G)
- S(f);OGATE::P(C),XS(f)
- S(f);SBLOCK::QAB(A)+R(G),DCHECK,XR(d)
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