MESON Chess Problem Database
Problem Display
PID: 132149 (8/1rP5/1p6/1pPN1Q2/n2k1p1R/2p1p2K/3bBp2/1R3n2 w - - 0 1)
Casa, Alex
Die Schwalbe, 1954
#2
8 + 11
SOLUTION
- SOUND
- Sets
- 1...Sxc5
- 2.Rb4#
- 1...bxc5
- 2.Rxf4#
- 1...Sxc5
- Tries
- 1.Sxe3?
- threat
- 2.Sc2#
- 1...Kxe3
- 2.Qd3#
- 2.Qe5#
- 1...Bxe3
- 2.Rb4#
- 1...Sxe3
- 2.Rxf4#
- 1...c2!
- threat
- 1.Sb4?
- threat
- 2.Sc2#
- 2.Sc6#
- 2.Rxf4#
- 2.Qd5#
- 1...Rxc7
- 2.Sc2#
- 2.Rxf4#
- 2.Qd5#
- 1...Sxc5
- 2.Sc2#
- 2.Sc6#
- 2.Qd5#
- 1...Sg3
- 2.Sc2#
- 2.Sc6#
- 2.Qd5#
- 1...c2!
- threat
- 1.Sxf4?
- threat
- 2.Sg2#
- 2.Sd3#
- 2.Sh5#
- 2.Se6#
- 2.Sg6#
- 2.Rb4#
- 2.Qd5#
- 1...Sxc5
- 2.Se6#
- 2.Rb4#
- 2.Qd5#
- 1...bxc5
- 2.Sg2#
- 2.Sd3#
- 2.Sd5#
- 2.Sh5#
- 2.Se6#
- 2.Sg6#
- 2.Qd5#
- 1...Sh2
- 2.Se6#
- 2.Rb4#
- 2.Qd5#
- 1...Sg3
- 2.Se6#
- 2.Rb4#
- 2.Qd5#
- 1...Sb2
- 2.Sg2#
- 2.Sd3#
- 2.Sh5#
- 2.Se6#
- 2.Sg6#
- 2.Qd5#
- 1...b4
- 2.Sg2#
- 2.Sd3#
- 2.Sh5#
- 2.Se6#
- 2.Sg6#
- 2.Rxb4#
- 2.Qd5#
- 1...c2!
- threat
- 1.Sxb6?
- threat
- 2.Rb4#
- 2.Rxf4#
- 2.Qd5#
- 1...Rxb6
- 2.Rb4#
- 2.Rxf4#
- 1...Sxc5
- 2.Rb4#
- 2.Qd5#
- 1...Sxb6
- 2.Rxf4#
- 1...Sg3
- 2.Rb4#
- 2.Qd5#
- 1...Sb2
- 2.Rxf4#
- 2.Qd5#
- 1...b4
- 2.Rxb4#
- 2.Rxf4#
- 2.Qd5#
- 1...c2!
- threat
- 1.Sf6?
- threat
- 2.Rb4#
- 2.Rxf4#
- 2.Qd5#
- 1...Sxc5
- 2.Rb4#
- 2.Qd5#
- 1...bxc5
- 2.Rxf4#
- 2.Qe4#
- 2.Qxf4#
- 2.Qd5#
- 1...Sg3
- 2.Rb4#
- 2.Qd5#
- 1...Sb2
- 2.Rxf4#
- 2.Qd5#
- 1...b4
- 2.Rxb4#
- 2.Rxf4#
- 2.Qd5#
- 1...c2!
- threat
- 1.Se7?
- threat
- 2.Sc6#
- 2.Rb4#
- 2.Rxf4#
- 2.Qd5#
- 1...Rxc7
- 2.Rb4#
- 2.Rxf4#
- 2.Qd5#
- 1...Sxc5
- 2.Sc6#
- 2.Rb4#
- 2.Qd5#
- 1...bxc5
- 2.Sc6#
- 2.Rxf4#
- 2.Qxf4#
- 2.Qd5#
- 1...Sg3
- 2.Sc6#
- 2.Rb4#
- 2.Qd5#
- 1...Sb2
- 2.Sc6#
- 2.Rxf4#
- 2.Qd5#
- 1...b4
- 2.Sc6#
- 2.Rxb4#
- 2.Rxf4#
- 2.Qd5#
- 1...c2!
- threat
- 1.Rxb5?
- threat
- 2.Rxf4#
- 1...Sxc5
- 2.Rb4#
- 1...Sg3!
- threat
- 1.Qxf4+?
- 1...Kxd5
- 2.Qd6#
- 1...Kxc5!
- 1...Kxd5
- 1.Qe5+?
- 1...Kxc5
- 2.Sb4#
- 2.Se7#
- 1...Kxe5!
- 1...Kxc5
- 1.c8Q?
- threat
- 2.Rb4#
- 2.Rxf4#
- 1...Sxc5
- 2.Rb4#
- 1...bxc5
- 2.Rxf4#
- 1...Re7
- 2.Rb4#
- 1...Rh7
- 2.Rb4#
- 1...Sg3
- 2.Rb4#
- 1...Sb2
- 2.Rxf4#
- 1...c2
- 2.Rxf4#
- 1...b4
- 2.Rxb4#
- 2.Rxf4#
- 1...Rc7!
- threat
- 1.c8R?
- threat
- 2.Rb4#
- 2.Rxf4#
- 1...Sxc5
- 2.Rb4#
- 1...bxc5
- 2.Rxf4#
- 1...Re7
- 2.Rb4#
- 1...Rh7
- 2.Rb4#
- 1...Sg3
- 2.Rb4#
- 1...Sb2
- 2.Rxf4#
- 1...c2
- 2.Rxf4#
- 1...b4
- 2.Rxb4#
- 2.Rxf4#
- 1...Rc7!
- threat
- 1.Sxe3?
- Keys
- 1.Sxc3!
- threat
- 2.Sxb5#
- 1...Kxc3
- 2.Qd3#
- 1...Bxc3
- 2.Rxf4#
- 1...Sxc3
- 2.Rb4#
- 1...bxc5
- 2.Qf6#
- 1...b4
- 2.Sb5#
- threat
- 1.Sxc3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- S(f);SBLOCK,XP(E)::R(A)
- P(j);SBLOCK,XP(E)::R(D),XP(h)
- Tries
- Try
- S(F);XP(e)
- Threat
- S(F)
- Vars
- B(b);SBLOCK,XS(F)::R(A)
- S(a);SBLOCK,XS(F)::R(D),XP(h)
- Refutation
- P(d);
- Try
- S(F);
- Threat
- DUALS(4)
- Refutation
- P(d);
- Try
- S(F);XP(h)
- Threat
- DUALS(7)
- Refutation
- P(d);
- Try
- S(F);XP(j)
- Threat
- DUALS(3)
- Vars
- S(f);XS(F)::R(D),XP(h)
- Refutation
- P(d);
- Try
- S(F);
- Threat
- DUALS(3)
- Refutation
- P(d);
- Try
- S(F);
- Threat
- DUALS(4)
- Refutation
- P(d);
- Try
- R(A);XP(i)
- Threat
- R(D),XP(h)
- Vars
- S(f);SBLOCK,XP(E)::R(A)
- Refutation
- S(a);
- Try
- Q(G);CHECK,XP(h)
- Vars
- K(g);P-FLIGHT,XS(F)::QAR1(G)
- Refutation
- K(g);S_FLIGHT,XP(E)
- Try
- Q(G);CHECK
- Refutation
- K(g);N_SPINP(h),S_FLIGHT,XQ(G)
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- S(f);XP(E)::R(A)
- P(j);XP(E)::R(D),XP(h)
- R(k);::R(A)
- R(k);P_PINR(D)::R(A)
- S(a);::R(A)
- S(f);::R(D),XP(h)
- P(d);::R(D),XP(h)
- Refutation
- R(k);
- Try
- P(H);
- Threat
- DUALS(2)
- Vars
- S(f);XP(E)::R(A)
- P(j);XP(E)::R(D),XP(h)
- R(k);::R(A)
- R(k);P_PINR(D)::R(A)
- S(a);::R(A)
- S(f);::R(D),XP(h)
- P(d);::R(D),XP(h)
- Refutation
- R(k);
- Try
- Actual
- S(F);XP(d)
- Threat
- S(F),XP(i)
- Vars
- K(g);N_SPINP(h),S_FLIGHT,XS(F)::QAR1(G)
- B(b);SBLOCK,XS(F)::R(D),XP(h)
- S(f);SBLOCK,XS(F)::R(A)
- P(j);SBLOCK,XP(E)::QAB(G)
- P(i);::S(F)
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