MESON Chess Problem Database
Problem Display
PID: 138754 (8/1b2N1K1/8/1pNPP1pp/3k4/1P2rpQ1/2RbBBP1/8 w - - 0 1)
Hirschenson, Aaron
Navon, Emanuel
StrateGems, 2010
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Bxd5
- 2.Sf5#
- 1...b4
- 2.Rc4#
- 1...g4
- 2.Qf4#
- 1...Bxd5
- Tries
- 1.Bxf3?
- threat
- 2.Sf5#
- 1...Bc8
- 2.Sc6#
- 1...Bc3!
- threat
- 1.Bxb5?
- threat
- 2.Rc4#
- 1...Bxd5
- 2.Sf5#
- 1...Bc3!
- threat
- 1.Qg4+?
- 1...Kxe5
- 2.Bg3#
- 1...hxg4!
- 1...Kxe5
- 1.Qxg5?
- threat
- 2.Qf4#
- 1...Bc3
- 2.Bxe3#
- 2.Qxe3#
- 1...Bxd5!
- threat
- 1.gxf3?
- threat
- 2.Se6#
- 1...Bxd5
- 2.Sf5#
- 1...Bc8!
- threat
- 1.Bxf3?
- Keys
- 1.Qxf3!
- threat
- 2.Qe4#
- 1...Kxe5
- 2.Qf6#
- 1...Bxd5
- 2.Qxd5#
- 1...Bc3
- 2.Qxe3#
- threat
- 1.Qxf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- B(h);SBLOCK,XP(H)::S(J)
- P(e);N_GUARD::R1(A)
- P(f);N_GUARD::QAR2(F)
- Tries
- Try
- B(B);XP(c)
- Threat
- S(J)
- Vars
- B(h);N_GUARD::S(J)
- Refutation
- B(a);
- Try
- B(B);XP(e)
- Threat
- R1(A)
- Vars
- B(h);SBLOCK,XP(H)::S(J)
- Refutation
- B(a);
- Try
- Q(F);CHECK
- Vars
- K(d);N_SPINR(b),S_FLIGHT,XP(I)::B(C)
- Refutation
- P(g);XQ(F)
- Try
- Q(F);XP(f)
- Threat
- QAR2(F)
- Refutation
- B(h);XP(H)
- Try
- P(D);XP(c)
- Threat
- S(G)
- Vars
- B(h);SBLOCK,XP(H)::S(J)
- Refutation
- B(h);
- Try
- Actual
- Q(F);XP(c)
- Threat
- QAR1(F)
- Vars
- K(d);N_SPINR(b),OGATEB,S_FLIGHT,XP(I)::QAB1(F)
- B(h);OGATE,XP(H)::QAR1(F),XB(h)
- B(a);N_GUARD::QAB1(F),XR(b)
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