MESON Chess Problem Database
Problem Display
PID: 80957 (2B5/4RKn1/2p4N/4bpRp/p1QNk2P/rr4P1/b1P5/1nB5 w - - 0 1)
Clark, Cecil Henry Douglas
The Field, 1950
(First published on Sat Apr 22 1950)
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Rf3
- 2.Sb3#
- 1...Se8
- 2.Bxf5#
- 1...f4
- 2.Rgxe5#
- 2.Rexe5#
- 1...Rf3
- Tries
- 1.Sg4?
- threat
- 2.Sf2#
- 2.Sf6#
- 2.Rxe5#
- 1...fxg4
- 2.Rgxe5#
- 2.Rexe5#
- 1...Rf3
- 2.Sb3#
- 2.Sf6#
- 2.Rxe5#
- 1...Rb5
- 2.Sf2#
- 2.Sf6#
- 1...Rb7
- 2.Sf2#
- 2.Sf6#
- 1...Sd2
- 2.Rxe5#
- 1...Se6
- 2.Sf2#
- 1...Se8
- 2.Sf2#
- 2.Bxf5#
- 2.Rxe5#
- 1...hxg4!
- threat
- 1.Rxf5?
- threat
- 2.Se2#
- 2.Sxb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sxc6#
- 2.Rf4#
- 2.Rfxe5#
- 2.Rexe5#
- 1...Rxg3
- 2.Sb3#
- 2.Rf4#
- 2.Rfxe5#
- 2.Rexe5#
- 1...Sxf5
- 2.Bxf5#
- 1...Sd2
- 2.Rfxe5#
- 2.Rexe5#
- 1...Rb5
- 2.Sb3#
- 2.Rf4#
- 1...Rb2
- 2.Sb3#
- 2.Rf4#
- 2.Rfxe5#
- 2.Rexe5#
- 1...Rc3
- 2.Rf4#
- 2.Rfxe5#
- 2.Rexe5#
- 1...Rd3
- 2.Rf4#
- 2.Rfxe5#
- 2.Rexe5#
- 1...Re3
- 2.Sb3#
- 2.Rf4#
- 2.Rfxe5#
- 2.Rexe5#
- 1...Rf3
- 2.Sb3#
- 2.Rxe5#
- 1...Rb4
- 2.Rf4#
- 2.Rfxe5#
- 2.Rexe5#
- 1...Rb6
- 2.Sb3#
- 2.Rf4#
- 2.Rfxe5#
- 2.Rexe5#
- 1...Rb7
- 2.Sb3#
- 2.Rf4#
- 2.Rxe5#
- 1...Rb8
- 2.Sb3#
- 2.Rf4#
- 2.Rfxe5#
- 2.Rexe5#
- 1...c5
- 2.Se2#
- 2.Sxb3#
- 2.Sf3#
- 2.Sb5#
- 2.Sc6#
- 2.Rf4#
- 2.Rfxe5#
- 2.Rexe5#
- 1...Se6!
- threat
- 1.Rxg7?
- threat
- 2.Bxf5#
- 1...Rf3
- 2.Sb3#
- 1...f4
- 2.Bf5#
- 1...Sd2!
- threat
- 1.Sg4?
- Keys
- 1.Shxf5!
- threat
- 2.Sd6#
- 2.Qxc6#
- 1...Rxg3
- 2.Sd6#
- 1...Sxf5
- 2.Bxf5#
- 1...Rb2
- 2.Sd6#
- 1...Rc3
- 2.Sd6#
- 1...Rd3
- 2.Sd6#
- 1...Re3
- 2.Sd6#
- 1...Rf3
- 2.Sb3#
- 1...Rb4
- 2.Sd6#
- 1...Rb5
- 2.Sd6#
- 1...Rb6
- 2.Sd6#
- 1...Rb7
- 2.Sd6#
- 1...Rb8
- 2.Sd6#
- 1...Sd2
- 2.Qxc6#
- 1...Sc3
- 2.Sd6#
- 1...Se6
- 2.Qxc6#
- 1...Se8
- 2.Qxc6#
- 1...c5
- 2.Sd6#
- threat
- 1.Shxf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 15
- REMOVED MATES = 0
- Sets
- R(d);P_PINQ(D),SBLOCK::QAR(D)+S(E)
- S(k);N_GUARD::B(K),XP(h)
- Tries
- Try
- S(H);
- Threat
- DUALS(3)
- Vars
- S(a);::R1(I),XB(g)
- S(k);N_SPINB(g)::S(H)
- Refutation
- P(i);XS(H)
- Try
- R(G);XP(h)
- Threat
- DUALS(8)
- Vars
- S(k);OGATE,XR(G)::B(K),XS(k)
- Refutation
- S(k);N_SPINB(g)
- Try
- R(G);XS(k)
- Threat
- B(K),XP(h)
- Vars
- R(d);P_PINQ(D),SBLOCK::QAR(D)+S(E)
- P(h);::B(K)
- Refutation
- S(a);
- Try
- Actual
- S(H);XP(h)
- Threat
- DUALS(2)
- Vars
- R(d);P_PINQ(D),XP(C)::S(H)
- S(k);OGATE,XS(H)::B(K),XS(k)
- R(d);P_PINQ(D)::S(H)
- R(d);P_PINQ(D),P_PINS(H),SBLOCK::QAR(D)+S(E)
- R(d);P_PINQ(D),P_PINR(I)::S(H)
- S(a);::QAB(D),XP(j)
- S(a);::S(H)
- S(k);N_SPINB(g)::QAB(D),XP(j)
- S(k);::QAB(D),XP(j)
- P(j);::S(H)
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