MESON Chess Problem Database
Problem Display
PID: 37511 (7B/2nBN3/1R2p2Q/2P5/1Pp1k1P1/2prpp2/K1N1P3/8 w - - 0 1)
Lacny, Ludovit
1st Prize, Sachove umeni (Ceskoslovensky sach), 1954
#2
11 + 8
| 3105 | FIDE Album (1945-1955) | 1964 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qxe3#
- 1...Rd2
- 2.Qxe3#
- 1...Rd4
- 2.Qxe3#
- 1...Rd5
- 2.Qxe3#
- 1...Rd6
- 2.Qxe3#
- 1...Rxd7
- 2.Qxe3#
- 1...Sb5
- 2.Rxe6#
- 1...Sd5
- 2.Rxe6#
- 1...Sa6
- 2.Rxe6#
- 1...Sa8
- 2.Rxe6#
- 1...Se8
- 2.Rxe6#
- 1...e5
- 2.Bf5#
- 1...Rd1
- Tries
- 1.Bc6+?
- 1...Rd5
- 2.Qxe3#
- 1...Sd5!
- 1...Rd5
- 1.Bxe6?
- threat
- 2.Bf5#
- 1...Sxe6
- 2.Rxe6#
- 1...Rd5
- 2.Qxe3#
- 1...fxe2!
- threat
- 1.Be8?
- threat
- 2.Bg6#
- 1...Sxe8
- 2.Rxe6#
- 1...Rd5
- 2.Qxe3#
- 1...fxe2!
- threat
- 1.Qg5?
- threat
- 2.Qe5#
- 1...Rd5
- 2.Qxe3#
- 1...e5
- 2.Bf5#
- 2.Qxe5#
- 2.Qf5#
- 1...fxe2!
- threat
- 1.Qf8?
- threat
- 2.Qxf3#
- 2.exf3#
- 1...Rxd7
- 2.Qxf3#
- 1...f2
- 2.Qf3#
- 1...Rd1
- 2.Qxf3#
- 1...Rd2
- 2.Qxf3#
- 1...Rd4
- 2.Qxf3#
- 1...Rd5
- 2.Qxf3#
- 1...Rd6
- 2.Qxf3#
- 1...fxe2!
- threat
- 1.Qxe6+?
- 1...Kf4
- 2.Qe5#
- 1...Sxe6!
- 1...Kf4
- 1.Qf6?
- threat
- 2.Qe5#
- 2.Qxf3#
- 2.exf3#
- 1...Rxd7
- 2.Qe5#
- 2.Qxf3#
- 1...f2
- 2.Qe5#
- 2.Qf3#
- 1...Rd1
- 2.Qe5#
- 2.Qxf3#
- 1...Rd2
- 2.Qe5#
- 2.Qxf3#
- 1...Rd4
- 2.Qxd4#
- 2.Qe5#
- 2.Qxf3#
- 1...Rd5
- 2.Qxf3#
- 1...Rd6
- 2.Qe5#
- 2.Qxf3#
- 1...e5
- 2.Qxe5#
- 2.Qxf3#
- 2.Qf5#
- 2.exf3#
- 1...fxe2!
- threat
- 1.exd3+?
- 1...cxd3
- 2.Qxe3#
- 1...Kxd3!
- 1...cxd3
- 1.Bc6+?
- Keys
- 1.Sd5!
- 1...Kxd5
- 2.Bc6#
- 1...Rxd5
- 2.Qxe3#
- 1...Sxd5
- 2.Rxe6#
- 1...fxe2
- 2.Qh1#
- 1...exd5
- 2.Bf5#
- 1...Rd1
- 2.Sxc3#
- 1...Rd2
- 2.Sxc3#
- 1...Rd4
- 2.Sxc3#
- 1...Sb5
- 2.Qxe6#
- 1...Sa6
- 2.Qxe6#
- 1...Sa8
- 2.Qxe6#
- 1...Se8
- 2.Qxe6#
- 1...f2
- 2.Qh1#
- 1...e5
- 2.Sf6#
- 1...Kxd5
- 1.Sd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 4
- REMOVED MATES = 2
- Sets
- R(b);N_GUARD::QAR1(H),XP(c)
- R(b);N_GUARD,P_PINS(B)::QAR1(H),XP(c)
- R(b);N_GUARD,XB(I)::QAR1(H),XP(c)
- S(h);N_GUARD::R(G),XP(g)
- P(g);OGATE::B(I)
- Tries
- Try
- B(I);CHECK
- Vars
- R(b);P_SPINR(b)::QAR1(H),XP(c)
- Refutation
- S(h);P_SPINS(h)
- Try
- B(I);XP(g)
- Threat
- B(I)
- Vars
- S(h);OGATE,XB(I)::R(G),XS(h)
- R(b);N_GUARD::QAR1(H),XP(c)
- Refutation
- P(d);XP(C)
- Try
- B(I);
- Threat
- B(I)
- Vars
- S(h);N_GUARD,XB(I)::R(G),XP(g)
- R(b);N_GUARD::QAR1(H),XP(c)
- Refutation
- P(d);XP(C)
- Try
- Q(H);
- Threat
- QAR1(H)
- Vars
- R(b);N_GUARD::QAR1(H),XP(c)
- Refutation
- P(d);XP(C)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- R(b);XB(I)::QAB1(H),XP(d)
- P(d);::QAB1(H)
- R(b);::QAB1(H),XP(d)
- R(b);P_PINS(B)::QAB1(H),XP(d)
- Refutation
- P(d);XP(C)
- Try
- Q(H);CHECK,XP(g)
- Vars
- K(f);P-FLIGHT::QAB1(H)
- Refutation
- S(h);XQ(H)
- Try
- Q(H);
- Threat
- DUALS(3)
- Vars
- R(b);::QAB1(H),XP(d)
- Refutation
- P(d);XP(C)
- Try
- P(C);CHECK,XR(b)
- Vars
- P(e);XP(C)::QAR1(H),XP(c)
- Refutation
- K(f);S_FLIGHT,XP(C)
- Try
- Actual
- S(J);
- Vars
- K(f);OGATEB,S_FLIGHT,XS(J)::B(I)
- R(b);N_GUARD,SBLOCK,XS(J)::QAR1(H),XP(c)
- S(h);N_GUARD,SBLOCK,XS(J)::R(G),XP(g)
- P(d);OGATEB,XP(C)::QAB(H)
- P(g);OGATE,SBLOCK,XS(J)::B(I)
- R(b);N_GUARD::S(J),XP(a)
- R(b);N_GUARD,P_PINS(B)::S(J),XP(a)
- S(h);N_GUARD::QAR2(H),XP(g)
- P(d);OGATEB::QAB(H)
- P(g);SBLOCK::S(J)
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