MESON Chess Problem Database
Problem Display
PID: 87618 (1K6/8/5p2/1n3Nb1/1PR2Pp1/4pkBp/2Q4P/6n1 w - - 0 1)
Lewis, Robert Tony
The Problemist, 1993
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bxf4+
- 2.Rxf4#
- 1...Bh4
- 2.Sxh4#
- 1...Bh6
- 2.Sh4#
- 1...Se2
- 2.Qe4#
- 1...Sa3
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...e2
- 2.Qe4#
- 1...Bxf4+
- Tries
- 1.Kb7?
- 1...Bxf4
- 2.Sh4#
- 2.Rxf4#
- 1...Se2
- 2.Qe4#
- 1...e2
- 2.Qe4#
- 1...Bh4
- 2.Sxh4#
- 1...Bh6
- 2.Sh4#
- 1...Sa3
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Sd6+!
- 1...Bxf4
- 1.Ka8?
- 1...Bxf4
- 2.Sh4#
- 2.Rxf4#
- 1...Se2
- 2.Qe4#
- 1...e2
- 2.Qe4#
- 1...Bh4
- 2.Sxh4#
- 1...Bh6
- 2.Sh4#
- 1...Sa3
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7+!
- 1...Bxf4
- 1.Rc8?
- 1...Se2
- 2.Qc6#
- 1...e2
- 2.Qc6#
- 1...Bh4
- 2.Sxh4#
- 1...Bh6
- 2.Sh4#
- 1...Sa3
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Sc7
- 2.Sd4#
- 1...Bxf4+!
- 1...Se2
- 1.Qd1+?
- 1...Se2
- 2.Qf1#
- 2.Qh1#
- 2.Qd5#
- 1...e2
- 2.Qd5#
- 1...Kg2!
- 1...Se2
- 1.fxg5?
- threat
- 2.Sh4#
- 2.Rf4#
- 1...Se2
- 2.Sh4#
- 2.Qe4#
- 1...e2
- 2.Qe4#
- 1...Sd4
- 2.Sxd4#
- 2.Sh4#
- 1...fxg5!
- threat
- 1.Kb7?
- Keys
- 1.Rc7!
- 1...Bxf4
- 2.Sh4#
- 1...Sxc7
- 2.Sd4#
- 1...Se2
- 2.Qc6#
- 1...e2
- 2.Qc6#
- 1...Bh4
- 2.Sxh4#
- 1...Bh6
- 2.Sh4#
- 1...Sa3
- 2.Sd4#
- 1...Sc3
- 2.Sd4#
- 1...Sd4
- 2.Sxd4#
- 1...Sd6
- 2.Sd4#
- 1...Sa7
- 2.Sd4#
- 1...Bxf4
- 1.Rc7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(g);CHECK,OGATE,XP(F)::R1(E),XB(g)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(a);SBLOCK::QAB1(A)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD::S(G),XS(f)
- P(b);::QAB1(A)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- S(a);SBLOCK::QAB1(A)
- P(b);::QAB1(A)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD::S(G),XS(f)
- Refutation
- S(f);CHECK
- Try
- K(H);P-FLIGHT
- Vars
- S(a);SBLOCK::QAB1(A)
- P(b);::QAB1(A)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD::S(G),XS(f)
- Refutation
- S(f);CHECK
- Try
- R(E);
- Vars
- S(a);SBLOCK::QAB(A)
- P(b);SBLOCK::QAB(A)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD::S(G),XS(f)
- Refutation
- B(g);CHECK,XP(F)
- Try
- Q(A);CHECK
- Vars
- P(b);P_SPINP(b),SBLOCK::QAB(A)
- Refutation
- K(c);S_FLIGHT
- Try
- P(F);XB(g)
- Threat
- DUALS(2)
- Vars
- P(b);::QAB1(A)
- Refutation
- P(h);XP(F)
- Try
- Actual
- R(E);
- Vars
- B(g);N_GUARD,P_PINR(E),XP(F)::S(G)
- S(f);N_GUARD,XR(E)::S(G)
- S(a);SBLOCK::QAB(A)
- P(b);SBLOCK::QAB(A)
- B(g);N_GUARD::S(G),XB(g)
- B(g);N_GUARD::S(G)
- S(f);N_GUARD::S(G)
- S(f);N_GUARD::S(G),XS(f)
Developed and maintained by Brian Stephenson.
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