MESON Chess Problem Database
Problem Display
PID: 173536 (2b1B3/K2p2pq/R3p2r/3P1kpN/2P3N1/Q3PP1P/8/B2Rn1bn w - - 0 1)
Alaikov, Venelin
Shakhmatna misl, 1989
#2
13 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rxh5
- 2.Qf8#
- 1...Bh2
- 2.e4#
- 1...Bxe3+
- 2.Sxe3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sxf3
- 2.Qd3#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...exd5
- 2.Rxd5#
- 1...Rxh5
- Tries
- 1.Ka8?
- threat
- 2.e4#
- 1...Rxh5
- 2.Qf8#
- 1...Bxe3
- 2.Sxe3#
- 1...Sxf3
- 2.Qd3#
- 1...exd5
- 2.Rxd5#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Bb7+!
- threat
- 1.Kb8?
- threat
- 2.e4#
- 1...Rxh5
- 2.Qf8#
- 1...Bxe3
- 2.Sxe3#
- 1...Sxf3
- 2.Qd3#
- 1...exd5
- 2.Rxd5#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Bh2+!
- threat
- 1.Bd4?
- threat
- 2.e4#
- 1...Rxh5
- 2.Qf8#
- 1...Bxe3
- 2.Sxe3#
- 1...Sxf3
- 2.Qd3#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...exd5!
- threat
- 1.Rxe1?
- threat
- 2.Qd3#
- 1...Bxe3+
- 2.Sxe3#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...e5!
- threat
- 1.Rd4?
- threat
- 2.e4#
- 1...Rxh5
- 2.Qf8#
- 1...exd5
- 2.Rxd5#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Bxe3!
- threat
- 1.Qc5?
- threat
- 2.e4#
- 1...Rxh5
- 2.Qf8#
- 1...Bxe3
- 2.Sxe3#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Sxf3!
- threat
- 1.Qc3?
- threat
- 2.Qe5#
- 1...Bxe3+
- 2.Sxe3#
- 1...Sxf3
- 2.Qc2#
- 2.Qd3#
- 1...Bh2
- 2.e4#
- 1...Sd3
- 2.Qxd3#
- 1...e5
- 2.Qxe5#
- 1...d6!
- threat
- 1.c5?
- threat
- 2.e4#
- 1...Bxe3
- 2.Sxe3#
- 1...Sxf3
- 2.Qd3#
- 1...exd5
- 2.Rxd5#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- 1...Rxh5!
- threat
- 1.Ka8?
- Keys
- 1.Rb6!
- threat
- 2.e4#
- 1...Rxh5
- 2.Qf8#
- 1...Bxe3
- 2.Sxe3#
- 1...Sxf3
- 2.Qd3#
- 1...exd5
- 2.Rxd5#
- 1...Sf2
- 2.Sg3#
- 1...Sg3
- 2.Sxg3#
- threat
- 1.Rb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- R(g);N_GUARD,XS(J)::QAR(C)
- B(b);N_PINP(D)::P(D)
- B(b);CHECK,XP(D)::S(H),XB(b)
- S(a);N_GUARD::QAB(C)
- S(a);N_GUARD::QAB(C),XS(a)
- S(a);N_GUARD,XP(E)::QAB(C)
- S(c);N_GUARD,N_PINP(D)::S(J)
- S(c);N_GUARD::S(J),XS(c)
- P(f);OGATE,XP(I)::R(B),XP(f)
- Tries
- Try
- K(L);N_SPINP(D),P-FLIGHT
- Threat
- P(D)
- Vars
- R(g);N_GUARD,XS(J)::QAR(C)
- B(b);XP(D)::S(H),XB(b)
- S(a);N_GUARD,XP(E)::QAB(C)
- P(f);OGATE,XP(I)::R(B),XP(f)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- Refutation
- B(k);CHECK
- Try
- K(L);N_SPINP(D),S_FLIGHT
- Threat
- P(D)
- Vars
- R(g);N_GUARD,XS(J)::QAR(C)
- B(b);XP(D)::S(H),XB(b)
- S(a);N_GUARD,XP(E)::QAB(C)
- P(f);OGATE,XP(I)::R(B),XP(f)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- Refutation
- B(b);CHECK
- Try
- B(A);N_SPINP(D)
- Threat
- P(D)
- Vars
- R(g);N_GUARD,XS(J)::QAR(C)
- B(b);P_PINB(A),XP(D)::S(H),XB(b)
- S(a);N_GUARD,XP(E)::QAB(C)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- Refutation
- P(f);XP(I)
- Try
- R(B);XS(a)
- Threat
- QAB(C)
- Vars
- B(b);CHECK,XP(D)::S(H),XB(b)
- S(c);N_GUARD,N_PINP(D)::S(J)
- S(c);N_GUARD::S(J),XS(c)
- Refutation
- P(f);
- Try
- R(B);N_SPINP(D)
- Threat
- P(D)
- Vars
- R(g);N_GUARD,XS(J)::QAR(C)
- P(f);OGATE,XP(I)::R(B),XP(f)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- Refutation
- B(b);P_PINR(B),XP(D)
- Try
- Q(C);N_SPINP(D)
- Threat
- P(D)
- Vars
- R(g);N_GUARD,XS(J)::QAR(C)
- B(b);P_PINQ(C),XP(D)::S(H),XB(b)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- Refutation
- S(a);XP(E)
- Try
- Q(C);
- Threat
- QAR1(C)
- Vars
- B(b);CHECK,XP(D)::S(H),XB(b)
- B(b);N_PINP(D)::P(D)
- S(a);N_GUARD::QAB(C),XS(a)
- P(f);::QAR1(C),XP(f)
- Refutation
- P(h);
- Try
- P(G);N_SPINP(D)
- Threat
- P(D)
- Vars
- B(b);P_PINP(G),XP(D)::S(H),XB(b)
- S(a);N_GUARD,XP(E)::QAB(C)
- P(f);OGATE,XP(I)::R(B),XP(f)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
- Refutation
- R(g);XS(J)
- Try
- Actual
- R(K);N_SPINP(D)
- Threat
- P(D)
- Vars
- R(g);N_GUARD,XS(J)::QAR(C)
- B(b);P_PINR(K),XP(D)::S(H),XB(b)
- S(a);N_GUARD,XP(E)::QAB(C)
- P(f);OGATE,XP(I)::R(B),XP(f)
- S(c);N_GUARD::S(J)
- S(c);N_GUARD::S(J),XS(c)
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