MESON Chess Problem Database
Problem Display
PID: 78474 (1n3BB1/R1p5/1N2pkp1/6p1/5pPb/5P2/2P5/1K5Q w - - 0 1)
Howard, David M
Source?, 2004
#2
9 + 8
| 136 | Problem Observer | 2008 |
SOLUTION
- SOUND
- Sets
- 1...Be1
- 2.Qh8#
- 1...Bf2
- 2.Qh8#
- 1...Bg3
- 2.Qh8#
- 1...Sa6
- 2.Sd7#
- 1...Sc6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...e5
- 2.Sd5#
- 1...cxb6
- 2.Bg7#
- 1...c5
- 2.Bg7#
- 1...c6
- 2.Bg7#
- 1...Be1
- Tries
- 1.Ka1?
- 1...cxb6
- 2.Bg7#
- 1...Be1
- 2.Qh8#
- 1...Bf2
- 2.Qh8#
- 1...Bg3
- 2.Qh8#
- 1...Sa6
- 2.Sd7#
- 1...Sc6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...e5
- 2.Sd5#
- 1...c5
- 2.Bg7#
- 1...c6
- 2.Bg7#
- 1...Ke5!
- 1...cxb6
- 1.Kc1?
- 1...cxb6
- 2.Bg7#
- 1...Be1
- 2.Qh8#
- 1...Bf2
- 2.Qh8#
- 1...Bg3
- 2.Qh8#
- 1...Sa6
- 2.Sd7#
- 1...Sc6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...e5
- 2.Sd5#
- 1...c5
- 2.Bg7#
- 1...c6
- 2.Bg7#
- 1...Ke5!
- 1...cxb6
- 1.Kb2?
- 1...cxb6
- 2.Bg7#
- 1...Be1
- 2.Qh8#
- 1...Bf2
- 2.Qh8#
- 1...Bg3
- 2.Qh8#
- 1...Sa6
- 2.Sd7#
- 1...Sc6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...e5
- 2.Sd5#
- 1...c5
- 2.Bg7#
- 1...c6
- 2.Bg7#
- 1...Ke5!
- 1...cxb6
- 1.Rb7?
- 1...cxb6
- 2.Bg7#
- 1...Sa6
- 2.Sd7#
- 1...Be1
- 2.Qh8#
- 1...Bf2
- 2.Qh8#
- 1...Bg3
- 2.Qh8#
- 1...Sc6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...e5
- 2.Sd5#
- 1...c5
- 2.Bg7#
- 1...c6
- 2.Bg7#
- 1...Ke5!
- 1...cxb6
- 1.Rxc7?
- threat
- 2.Bg7#
- 1...Sd7
- 2.Sxd7#
- 1...Ke5!
- threat
- 1.Qe1?
- threat
- 2.Qxe6#
- 1...e5
- 2.Sd5#
- 1...Bxe1!
- threat
- 1.Qh2?
- 1...cxb6
- 2.Bg7#
- 1...Be1
- 2.Qh8#
- 1...Bf2
- 2.Qh8#
- 1...Bg3
- 2.Qh8#
- 1...Sa6
- 2.Sd7#
- 1...Sc6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...e5
- 2.Sd5#
- 1...c5
- 2.Bg7#
- 1...c6
- 2.Bg7#
- 1...Ke5!
- 1...cxb6
- 1.Qh3?
- 1...cxb6
- 2.Bg7#
- 1...Be1
- 2.Qh8#
- 1...Bf2
- 2.Qh8#
- 1...Bg3
- 2.Qh8#
- 1...Sa6
- 2.Sd7#
- 1...Sc6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...e5
- 2.Sd5#
- 1...c5
- 2.Bg7#
- 1...c6
- 2.Bg7#
- 1...Ke5!
- 1...cxb6
- 1.Qxh4?
- threat
- 2.Qh8#
- 1...Ke5
- 2.Qh8#
- 1...gxh4!
- threat
- 1.c3?
- 1...cxb6
- 2.Bg7#
- 1...Be1
- 2.Qh8#
- 1...Bf2
- 2.Qh8#
- 1...Bg3
- 2.Qh8#
- 1...Sa6
- 2.Sd7#
- 1...Sc6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...e5
- 2.Sd5#
- 1...c5
- 2.Bg7#
- 1...c6
- 2.Bg7#
- 1...Ke5!
- 1...cxb6
- 1.c4?
- 1...cxb6
- 2.Bg7#
- 1...Be1
- 2.Qh8#
- 1...Bf2
- 2.Qh8#
- 1...Bg3
- 2.Qh8#
- 1...Sa6
- 2.Sd7#
- 1...Sc6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...e5
- 2.Sd5#
- 1...c5
- 2.Bg7#
- 1...c6
- 2.Bg7#
- 1...Ke5!
- 1...cxb6
- 1.Ka1?
- Keys
- 1.Ka2!
- 1...Ke5
- 2.Qa1#
- 1...cxb6
- 2.Bg7#
- 1...Be1
- 2.Qh8#
- 1...Bf2
- 2.Qh8#
- 1...Bg3
- 2.Qh8#
- 1...Sa6
- 2.Sd7#
- 1...Sc6
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...e5
- 2.Sd5#
- 1...c5
- 2.Bg7#
- 1...c6
- 2.Bg7#
- 1...Ke5
- 1.Ka2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- B(b);OGATE::QAB(B)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- P(d);N_GUARD,SBLOCK::S(F)
- P(g);XS(F)::B(H)
- P(g);::B(H)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- P(g);XS(F)::B(H)
- B(b);OGATE::QAB(B)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- P(d);N_GUARD,SBLOCK::S(F)
- P(g);::B(H)
- Refutation
- K(e);S_FLIGHT
- Try
- K(A);P-FLIGHT
- Vars
- P(g);XS(F)::B(H)
- B(b);OGATE::QAB(B)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- P(d);N_GUARD,SBLOCK::S(F)
- P(g);::B(H)
- Refutation
- K(e);S_FLIGHT
- Try
- K(A);P-FLIGHT
- Vars
- P(g);XS(F)::B(H)
- B(b);OGATE::QAB(B)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- P(d);N_GUARD,SBLOCK::S(F)
- P(g);::B(H)
- Refutation
- K(e);S_FLIGHT
- Try
- R(G);
- Vars
- P(g);XS(F)::B(H)
- S(h);N_GUARD::S(F)
- B(b);OGATE::QAB(B)
- S(h);N_GUARD::S(F),XS(h)
- P(d);N_GUARD,SBLOCK::S(F)
- P(g);::B(H)
- Refutation
- K(e);S_FLIGHT
- Try
- R(G);XP(g)
- Threat
- B(H)
- Vars
- S(h);N_GUARD::S(F),XS(h)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(B);
- Threat
- QAR1(B),XP(d)
- Vars
- P(d);N_GUARD::S(F)
- Refutation
- B(b);XQ(B)
- Try
- Q(B);
- Vars
- P(g);XS(F)::B(H)
- B(b);OGATE::QAB(B)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- P(d);N_GUARD,SBLOCK::S(F)
- P(g);::B(H)
- Refutation
- K(e);P_SPINP(a),S_FLIGHT
- Try
- Q(B);
- Vars
- P(g);XS(F)::B(H)
- B(b);OGATE::QAB(B)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- P(d);N_GUARD,SBLOCK::S(F)
- P(g);::B(H)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(B);P_PINP(c),XB(b)
- Threat
- QAB(B)
- Vars
- K(e);N_SPINP(c),S_FLIGHT::QAB(B)
- Refutation
- P(c);N_SPINP(c),XQ(B)
- Try
- P(C);
- Vars
- P(g);XS(F)::B(H)
- B(b);OGATE::QAB(B)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- P(d);N_GUARD,SBLOCK::S(F)
- P(g);::B(H)
- Refutation
- K(e);S_FLIGHT
- Try
- P(C);
- Vars
- P(g);XS(F)::B(H)
- B(b);OGATE::QAB(B)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- P(d);N_GUARD,SBLOCK::S(F)
- P(g);::B(H)
- Refutation
- K(e);S_FLIGHT
- Try
- Actual
- K(A);S_FLIGHT
- Vars
- K(e);S_FLIGHT::QAB(B)
- P(g);XS(F)::B(H)
- B(b);OGATE::QAB(B)
- S(h);N_GUARD::S(F)
- S(h);N_GUARD::S(F),XS(h)
- P(d);N_GUARD,SBLOCK::S(F)
- P(g);::B(H)
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