MESON Chess Problem Database
Problem Display
PID: 178712 (8/6b1/8/1Np4p/P1kPP2P/Pr1p2QP/B1n3P1/n1R2K2 w - - 0 1)
Maleika, Gerhard
6th HM., Problem Observer Block-Threat Ty., 2009-2010
#2
12 + 8
SOLUTION
- SOUND
- Sets
- 1...Bxd4
- 2.Qg8#
- 1...Be5
- 2.Qg8#
- 1...Bf6
- 2.Qg8#
- 1...Bh6
- 2.Qg8#
- 1...Bf8
- 2.Qg8#
- 1...Bh8
- 2.Qg8#
- 1...d2
- 2.Qc3#
- 1...cxd4
- 2.Qc7#
- 1...Bxd4
- Tries
- 1.Kg1?
- 1...cxd4
- 2.Qc7#
- 1...Be5
- 2.Qg8#
- 1...Bf6
- 2.Qg8#
- 1...Bh6
- 2.Qg8#
- 1...Bf8
- 2.Qg8#
- 1...Bh8
- 2.Qg8#
- 1...d2
- 2.Qc3#
- 1...Bxd4+!
- 1...cxd4
- 1.Kf2?
- 1...cxd4
- 2.Qc7#
- 1...Be5
- 2.Qg8#
- 1...Bf6
- 2.Qg8#
- 1...Bh6
- 2.Qg8#
- 1...Bf8
- 2.Qg8#
- 1...Bh8
- 2.Qg8#
- 1...d2
- 2.Qc3#
- 1...Bxd4+!
- 1...cxd4
- 1.Rxc2+?
- 1...dxc2
- 2.Qc3#
- 1...Sxc2!
- 1...dxc2
- 1.Qd6?
- threat
- 2.Qxc5#
- 2.Qd5#
- 2.Qe6#
- 1...Bxd4
- 2.Qd5#
- 2.Qe6#
- 1...cxd4
- 2.Qb4#
- 2.Qc7#
- 2.Qd5#
- 2.Qc6#
- 1...Bf8
- 2.Qd5#
- 2.Qe6#
- 1...d2!
- threat
- 1.Qc7?
- threat
- 2.Qxc5#
- 2.Qf7#
- 1...Bxd4
- 2.Qf7#
- 1...Bf8
- 2.Qf7#
- 1...d2!
- threat
- 1.Qg4?
- threat
- 2.Qe6#
- 1...cxd4
- 2.Qc8#
- 1...d2
- 2.Qe2#
- 1...hxg4!
- threat
- 1.Qg5?
- threat
- 2.Qxc5#
- 2.Qd5#
- 1...Bxd4
- 2.Qd5#
- 2.Qg8#
- 1...cxd4
- 2.Qd5#
- 1...Be5
- 2.Qg8#
- 1...Bf8
- 2.Qd5#
- 2.Qg8#
- 1...d2!
- threat
- 1.Qg6?
- threat
- 2.Qf7#
- 2.Qe6#
- 1...cxd4
- 2.Qc6#
- 1...Bf6
- 2.Qf7#
- 2.Qg8#
- 1...d2!
- threat
- 1.Qxg7?
- threat
- 2.Qf7#
- 2.Qg8#
- 1...cxd4
- 2.Qxd4#
- 2.Qc7#
- 1...d2!
- threat
- 1.Kg1?
- Keys
- 1.Qe1!
- threat
- 2.Qc3#
- 1...Bxd4
- 2.Sd6#
- 1...cxd4
- 2.Qb4#
- 1...d2
- 2.Qe2#
- threat
- 1.Qe1!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 5
- Sets
- B(h);OGATE,XP(I)::QAB(F)
- B(h);OGATE::QAB(F)
- P(d);OGATE::QAR1(F)
- P(f);OGATEB,XP(I)::QAR(F)
- Tries
- Try
- K(B);P-FLIGHT
- Vars
- P(f);OGATEB,XP(I)::QAR(F)
- B(h);OGATE::QAB(F)
- P(d);OGATE::QAR1(F)
- Refutation
- B(h);CHECK,XP(I)
- Try
- K(B);P-FLIGHT
- Vars
- P(f);OGATEB,XP(I)::QAR(F)
- B(h);OGATE::QAB(F)
- P(d);OGATE::QAR1(F)
- Refutation
- B(h);CHECK,XP(I)
- Try
- R(A);CHECK,XS(b)
- Vars
- P(d);OGATE,XR(A)::QAR1(F)
- Refutation
- S(a);XR(A)
- Try
- Q(F);
- Threat
- DUALS(3)
- Refutation
- P(d);
- Try
- Q(F);P_PINP(f)
- Threat
- DUALS(2)
- Vars
- B(h);XP(I)::QAB(F)
- B(h);::QAB(F)
- Refutation
- P(d);
- Try
- Q(F);
- Threat
- QAB(F)
- Vars
- P(f);OGATEB,XP(I)::QAR(F)
- P(d);OGATEB::QAB(F)
- Refutation
- P(g);XQ(F)
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(f);XP(I)::QAB1(F)
- B(h);OGATE::QAB(F)
- Refutation
- P(d);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- P(f);OGATEB,XP(I)::QAR2(F)
- Refutation
- P(d);
- Try
- Q(F);XB(h)
- Threat
- DUALS(2)
- Refutation
- P(d);
- Try
- Actual
- Q(F);
- Threat
- QAR1(F)
- Vars
- B(h);SBLOCK,XP(I)::S(L)
- P(f);N_GUARD,XP(I)::QAR1(F)
- P(d);OGATEB::QAB(F)
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