MESON Chess Problem Database
Problem Display
PID: 49887 (5q2/1pn5/b3P1Rp/5k1P/R4PN1/3Pp3/B2NKb1B/1Q6 w - - 0 1)
Zarur, Almiro Elias
3rd Prize, Ellerman-100 JT, 1993-1995
#2
12 + 8
| 5559 | ECSC | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qa3
- 2.Sxh6#
- 1...Qb4
- 2.Sxh6#
- 1...Qc5
- 2.Sxh6#
- 1...Qd6
- 2.Sxh6#
- 1...Qe7
- 2.Sxh6#
- 1...Qf6
- 2.Sxh6#
- 1...Qf7
- 2.Sxh6#
- 1...Qa8
- 2.Sxh6#
- 1...Qb8
- 2.Sxh6#
- 1...Qc8
- 2.Sxh6#
- 1...Qd8
- 2.Sxh6#
- 1...Qe8
- 2.Sxh6#
- 1...Qg8
- 2.Sxh6#
- 1...Be1
- 2.Sxe3#
- 1...Bg3
- 2.Sxe3#
- 1...Bh4
- 2.Sxe3#
- 1...Bxd3+
- 2.Qxd3#
- 1...Bc4
- 2.dxc4#
- 1...Sb5
- 2.d4#
- 1...Sxe6
- 2.Bxe6#
- 1...b5
- 2.d4#
- 1...Qa3
- Tries
- 1.Bc4?
- threat
- 2.d4#
- 1...Bxc4
- 2.dxc4#
- 1...Qa3
- 2.Sxh6#
- 1...Qb4
- 2.Sxh6#
- 1...Bg3!
- threat
- 1.Bd5?
- threat
- 2.Be4#
- 1...Bxd3+
- 2.Qxd3#
- 1...Qb4
- 2.Sxh6#
- 1...Qf6
- 2.Sxh6#
- 1...Bg3
- 2.Sxe3#
- 1...Sxd5!
- threat
- 1.Rc4?
- threat
- 2.d4#
- 1...Bxc4
- 2.dxc4#
- 1...Qa3
- 2.Sxh6#
- 1...Qb4
- 2.Sxh6#
- 1...Bg3
- 2.Sxe3#
- 1...Qf6!
- threat
- 1.Ra5+?
- 1...Qc5
- 2.Sxh6#
- 1...Sb5
- 2.d4#
- 1...Sd5
- 2.Rxd5#
- 1...b5
- 2.d4#
- 1...Bb5!
- 1...Qc5
- 1.Rxa6?
- threat
- 2.d4#
- 1...Qa3
- 2.Sxh6#
- 1...Qb4
- 2.Sxh6#
- 1...Qc5
- 2.Sxh6#
- 1...Bg3!
- threat
- 1.Qh1?
- threat
- 2.Qe4#
- 1...Qb4
- 2.Sxh6#
- 1...Bxd3+!
- threat
- 1.Qb4?
- threat
- 2.Qxf8#
- 2.Qe4#
- 1...Qxb4
- 2.Sxh6#
- 1...Sxe6
- 2.Bxe6#
- 2.Qe4#
- 1...Qg7
- 2.Qe4#
- 1...Qc5
- 2.Sxh6#
- 2.Qe4#
- 1...Qd6
- 2.Sxh6#
- 2.Qe4#
- 1...Qe7
- 2.Sxh6#
- 2.Qe4#
- 1...Qf6
- 2.Sxh6#
- 2.Qe4#
- 1...Qf7
- 2.Sxh6#
- 2.Qe4#
- 1...Qa8
- 2.Sxh6#
- 2.Qe4#
- 1...Qb8
- 2.Sxh6#
- 2.Qe4#
- 1...Qc8
- 2.Sxh6#
- 2.Qe4#
- 1...Qd8
- 2.Sxh6#
- 2.Qe4#
- 1...Qe8
- 2.Sxh6#
- 2.Qe4#
- 1...Qg8
- 2.Sxh6#
- 2.Qe4#
- 1...Qh8
- 2.Qe4#
- 1...Bh4
- 2.Sxe3#
- 2.Qe4#
- 1...Bc4
- 2.Qxf8#
- 1...Sd5
- 2.Qe4#
- 1...Se8
- 2.Qe4#
- 1...Bxd3+!
- threat
- 1.Bc4?
- Keys
- 1.Sc4!
- threat
- 2.d4#
- 1...Bxc4
- 2.dxc4#
- 1...Qf6
- 2.Sd6#
- 1...Bg3
- 2.Scxe3#
- 1...Qa3
- 2.Sxh6#
- 1...Qb4
- 2.Sxh6#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 16
- Sets
- Q(h);N_GUARD::S(I),XP(e)
- B(a);N_GUARD::S(I),XP(b)
- B(d);CHECK,OGATE,P_SPINB(d),XP(F)::QAB(A),XB(d)
- B(d);::QAB(A)+P(F),XB(d)
- S(g);N_PINP(F)::QAB(A)+P(F)
- S(g);OGATE,XP(K)::B(B),XS(g)
- P(f);N_PINP(F)::QAB(A)+P(F)
- Tries
- Try
- B(B);N_SPINP(F)
- Threat
- QAB(A)+P(F)
- Vars
- B(d);OGATE,P_PINP(F),XB(B)::QAB(A)+P(F),XB(d)
- Q(h);N_GUARD::S(I),XP(e)
- Refutation
- B(a);
- Try
- B(B);
- Threat
- B(B)
- Vars
- B(d);CHECK,OGATE,P_SPINB(d),XP(F)::QAB(A),XB(d)
- Q(h);N_GUARD::S(I),XP(e)
- B(a);N_GUARD::S(I),XP(b)
- Refutation
- S(g);XB(B)
- Try
- R(G);N_SPINP(F)
- Threat
- QAB(A)+P(F)
- Vars
- B(d);OGATE,P_PINP(F),XR(G)::QAB(A)+P(F),XB(d)
- Q(h);N_GUARD::S(I),XP(e)
- B(a);N_GUARD::S(I),XP(b)
- Refutation
- Q(h);
- Try
- R(G);CHECK
- Vars
- Q(h);P_SPINQ(h)::S(I),XP(e)
- S(g);N_PINP(F),P_SPINS(g)::QAB(A)+P(F)
- S(g);N_GUARD,P_SPINS(g)::R(G),XS(g)
- P(f);N_PINP(F),P_SPINP(f)::QAB(A)+P(F)
- Refutation
- B(d);P_SPINB(d)
- Try
- R(G);N_SPINP(F),XB(d)
- Threat
- QAB(A)+P(F)
- Vars
- Q(h);N_GUARD::S(I),XP(e)
- Refutation
- B(a);
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- Q(h);N_GUARD::S(I),XP(e)
- Refutation
- B(d);CHECK,XP(F)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- Q(h);N_GUARD,XQ(A)::S(I),XP(e)
- Q(h);::QAB1(A)
- B(d);::QAR(A),XQ(h)
- S(g);::QAB1(A)
- Refutation
- B(d);CHECK,XP(F)
- Try
- Actual
- S(C);N_SPINP(F)
- Threat
- QAB(A)+P(F)
- Vars
- B(d);OGATE,P_PINP(F),XS(C)::QAB(A)+P(F),XB(d)
- Q(h);N_GUARD::S(C)
- B(a);N_GUARD::S(C),XP(b)
- Q(h);N_GUARD::S(I),XP(e)
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