MESON Chess Problem Database
Problem Display
PID: 64826 (4Q3/7p/1prppR1P/1N1b2n1/n1p1k1Bp/2p1r2p/2P1N2B/4R2K w - - 0 1)
Ducak, Jan
3rd Prize, UV CSTV, 1982
#2
10 + 14
| 3752 | FIDE Album (1980-1982) | 1988 |
SOLUTION
- SOUND
- Sets
- 1...Rxe2
- 2.Rxe2#
- 1...Rd3
- 2.Sexc3#
- 2.Sg3#
- 1...Rf3
- 2.Sexc3#
- 2.Sg3#
- 1...Rg3
- 2.Sexc3#
- 2.Sxg3#
- 1...Rc5
- 2.Sxd6#
- 1...Rc7
- 2.Sxd6#
- 1...Rc8
- 2.Sxd6#
- 1...Sb2
- 2.Sexc3#
- 1...Sc5
- 2.Sexc3#
- 1...Sf3
- 2.Bf5#
- 1...e5
- 2.Rf4#
- 1...Rxe2
- Tries
- 1.Sg1?
- threat
- 2.Bf5#
- 1...Re2
- 2.Rxe2#
- 1...Rxe1!
- threat
- 1.Sed4?
- threat
- 2.Bf5#
- 1...Re2
- 2.Rxe2#
- 1...Rxe1+!
- threat
- 1.Bxd6?
- threat
- 2.Rf4#
- 1...Rxe2
- 2.Rxe2#
- 1...Rd3
- 2.Sexc3#
- 2.Sg3#
- 1...Rf3
- 2.Sexc3#
- 2.Sg3#
- 1...Rg3
- 2.Sexc3#
- 2.Sxg3#
- 1...Rxd6!
- threat
- 1.Bf3+?
- 1...Rxf3
- 2.Sexc3#
- 2.Sg3#
- 1...Sxf3!
- 1...Rxf3
- 1.Rff1?
- threat
- 2.Bf5#
- 1...Rxe2
- 2.Rxe2#
- 1...Rd3
- 2.Sexc3#
- 2.Sg3#
- 1...Rf3
- 2.Sexc3#
- 1...Rg3
- 2.Sexc3#
- 2.Sxg3#
- 1...Sf3!
- threat
- 1.Rf2?
- threat
- 2.Bf5#
- 1...Rxe2
- 2.Rexe2#
- 2.Rfxe2#
- 1...Rd3
- 2.Sexc3#
- 2.Sg3#
- 1...Rf3
- 2.Sexc3#
- 1...Rg3
- 2.Sexc3#
- 2.Sxg3#
- 1...Sf3!
- threat
- 1.Rf7?
- 1...Rxe2
- 2.Rxe2#
- 1...Rd3
- 2.Sexc3#
- 2.Sg3#
- 1...Rf3
- 2.Sexc3#
- 2.Sg3#
- 1...Rg3
- 2.Sexc3#
- 2.Sxg3#
- 1...Rc5
- 2.Sxd6#
- 1...Rc7
- 2.Sxd6#
- 1...Rc8
- 2.Sxd6#
- 1...Sb2
- 2.Sexc3#
- 1...Sc5
- 2.Sexc3#
- 1...Sf3
- 2.Bf5#
- 1...e5
- 2.Rf4#
- 1...Sxf7!
- 1...Rxe2
- 1.Rf8?
- 1...Rxe2
- 2.Rxe2#
- 1...Rd3
- 2.Sexc3#
- 2.Sg3#
- 1...Rf3
- 2.Sexc3#
- 2.Sg3#
- 1...Rg3
- 2.Sexc3#
- 2.Sxg3#
- 1...Rc5
- 2.Sxd6#
- 1...Rc7
- 2.Sxd6#
- 1...Rc8
- 2.Sxd6#
- 1...Sb2
- 2.Sexc3#
- 1...Sc5
- 2.Sexc3#
- 1...Sf3
- 2.Bf5#
- 1...e5
- 2.Rf4#
- 1...Sf7!
- 1...Rxe2
- 1.Qd7?
- 1...Rxe2
- 2.Rxe2#
- 1...Rd3
- 2.Sexc3#
- 2.Sg3#
- 1...Rf3
- 2.Sexc3#
- 2.Sg3#
- 1...Rg3
- 2.Sexc3#
- 2.Sxg3#
- 1...Rc5
- 2.Sxd6#
- 1...Rc7
- 2.Sxd6#
- 1...Rc8
- 2.Sxd6#
- 1...Sb2
- 2.Sexc3#
- 1...Sc5
- 2.Sexc3#
- 1...Sf3
- 2.Qxh7#
- 1...e5
- 2.Qf5#
- 1...Sf7!
- 1...Rxe2
- 1.Qe7?
- 1...Rxe2
- 2.Rxe2#
- 1...Rd3
- 2.Sexc3#
- 2.Sg3#
- 1...Rf3
- 2.Sexc3#
- 2.Sg3#
- 1...Rg3
- 2.Sexc3#
- 2.Sxg3#
- 1...Rc5
- 2.Sxd6#
- 1...Rc7
- 2.Sxd6#
- 1...Rc8
- 2.Sxd6#
- 1...Sb2
- 2.Sexc3#
- 1...Sc5
- 2.Sexc3#
- 1...Sf3
- 2.Bf5#
- 2.Qxh7#
- 1...e5
- 2.Rf4#
- 1...Sf7!
- 1...Rxe2
- 1.Qg8?
- 1...Rxe2
- 2.Rxe2#
- 1...Rd3
- 2.Sexc3#
- 2.Sg3#
- 1...Rf3
- 2.Sexc3#
- 2.Sg3#
- 1...Rg3
- 2.Sexc3#
- 2.Sxg3#
- 1...Sf7
- 2.Qxh7#
- 1...Rc5
- 2.Sxd6#
- 1...Rc7
- 2.Sxd6#
- 1...Rc8
- 2.Sxd6#
- 1...Sb2
- 2.Sexc3#
- 1...Sc5
- 2.Sexc3#
- 1...Sf3
- 2.Qxh7#
- 1...e5!
- 1...Rxe2
- 1.Qh8?
- threat
- 2.Rf4#
- 1...Rxe2
- 2.Rxe2#
- 1...Rd3
- 2.Sexc3#
- 2.Sg3#
- 1...Rf3
- 2.Sexc3#
- 2.Sg3#
- 1...Rg3
- 2.Sexc3#
- 2.Sxg3#
- 1...e5!
- threat
- 1.Sg1?
- Keys
- 1.Qh5!
- 1...Rxe2
- 2.Rxe2#
- 1...Rd3
- 2.Sexc3#
- 2.Sg3#
- 1...Rf3
- 2.Sexc3#
- 2.Sg3#
- 1...Rg3
- 2.Sexc3#
- 2.Sxg3#
- 1...Sf7
- 2.Rf4#
- 1...Rc5
- 2.Sxd6#
- 1...Rc7
- 2.Sxd6#
- 1...Rc8
- 2.Sxd6#
- 1...Sb2
- 2.Sexc3#
- 1...Sc5
- 2.Sexc3#
- 1...Sf3
- 2.Rf4#
- 1...e5
- 2.Bf5#
- 1...Rxe2
- 1.Qh5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(b);OGATE,P_SPINR(b),XS(D)::R(A),XR(b)
- R(k);N_GUARD::S(G),XP(l)
- S(d);N_GUARD::S(D),XP(a)
- S(i);SBLOCK::B(F)
- P(m);::R1(H)
- Tries
- Try
- S(D);P_PINR(b)
- Threat
- B(F)
- Vars
- R(b);OGATEB::R(A),XR(b)
- Refutation
- R(b);N_SPINR(b),P_PINS(D),XR(A)
- Try
- S(D);P_PINR(b)
- Threat
- B(F)
- Vars
- R(b);OGATEB::R(A),XR(b)
- Refutation
- R(b);CHECK,N_SPINR(b),XR(A)
- Try
- B(E);XP(l)
- Threat
- R1(H)
- Vars
- R(b);OGATE,P_SPINR(b),XS(D)::R(A),XR(b)
- Refutation
- R(k);XB(E)
- Try
- B(F);CHECK
- Refutation
- S(i);XB(F)
- Try
- R(H);
- Threat
- B(F)
- Vars
- R(b);OGATE,P_SPINR(b),XS(D)::R(A),XR(b)
- R(b);::R(A)+S(D),DCHECK,XP(a)
- Refutation
- S(i);
- Try
- R(H);
- Threat
- B(F)
- Vars
- R(b);::R(A)+S(D),DCHECK,XP(a)
- Refutation
- S(i);
- Try
- R(H);
- Vars
- R(b);OGATE,P_SPINR(b),XS(D)::R(A),XR(b)
- R(k);N_GUARD::S(G),XP(l)
- S(d);N_GUARD::S(D),XP(a)
- S(i);SBLOCK::B(F)
- P(m);::R1(H)
- Refutation
- S(i);XR(H)
- Try
- R(H);
- Vars
- R(b);OGATE,P_SPINR(b),XS(D)::R(A),XR(b)
- R(k);N_GUARD::S(G),XP(l)
- S(d);N_GUARD::S(D),XP(a)
- S(i);SBLOCK::B(F)
- P(m);::R1(H)
- Refutation
- S(i);
- Try
- Q(J);N_PINP(m)
- Vars
- R(b);OGATE,P_SPINR(b),XS(D)::R(A),XR(b)
- R(k);N_GUARD::S(G),XP(l)
- S(d);N_GUARD::S(D),XP(a)
- S(i);N_GUARD::QAB(J),XP(n)
- P(m);OGATE::QAB1(J)
- Refutation
- S(i);
- Try
- Q(J);
- Vars
- R(b);OGATE,P_SPINR(b),XS(D)::R(A),XR(b)
- R(k);N_GUARD::S(G),XP(l)
- S(d);N_GUARD::S(D),XP(a)
- P(m);::R1(H)
- Refutation
- S(i);
- Try
- Q(J);N_PINP(m)
- Vars
- R(b);OGATE,P_SPINR(b),XS(D)::R(A),XR(b)
- S(i);N_GUARD::QAB(J),XP(n)
- R(k);N_GUARD::S(G),XP(l)
- S(d);N_GUARD::S(D),XP(a)
- Refutation
- P(m);
- Try
- Q(J);N_PINP(m)
- Threat
- R1(H)
- Vars
- R(b);OGATE,P_SPINR(b),XS(D)::R(A),XR(b)
- Refutation
- P(m);
- Try
- Actual
- Q(J);N_PINP(m)
- Vars
- R(b);OGATE,P_SPINR(b),XS(D)::R(A),XR(b)
- S(i);::R1(H)
- R(k);N_GUARD::S(G),XP(l)
- S(d);N_GUARD::S(D),XP(a)
- P(m);N_GUARD::B(F)
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