MESON Chess Problem Database
Problem Display
PID: 98535 (1Q3K2/8/1p3Bp1/1P1n1nP1/4N3/2PBkPP1/4P3/8 w - - 0 1)
Petkov, Petko Andonov
Problemas, 1970
#2
11 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sxc3
- 2.Qf4#
- 1...Sb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sxf6
- 2.Qf4#
- 1...Sde7
- 2.Qf4#
- 1...Sxg3
- 2.Bd4#
- 1...Sd4
- 2.Bxd4#
- 1...Sh4
- 2.Bd4#
- 1...Sd6
- 2.Bd4#
- 1...Sh6
- 2.Bd4#
- 1...Sfe7
- 2.Bd4#
- 1...Sg7
- 2.Bd4#
- 1...Sxc3
- Tries
- 1.Bc4?
- 1...Sxc3
- 2.Qf4#
- 1...Sxf6
- 2.Qf4#
- 1...Sxg3
- 2.Bd4#
- 1...Sb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sde7
- 2.Qf4#
- 1...Sd4
- 2.Bxd4#
- 1...Sh4
- 2.Bd4#
- 1...Sd6
- 2.Bd4#
- 1...Sh6
- 2.Bd4#
- 1...Sfe7
- 2.Bd4#
- 1...Sg7
- 2.Bd4#
- 1...Sc7!
- 1...Sxc3
- 1.Be5?
- 1...Sxg3
- 2.Bd4#
- 1...Sb4
- 2.Bf4#
- 1...Sf4
- 2.Bxf4#
- 1...Sf6
- 2.Bf4#
- 1...Sc7
- 2.Bf4#
- 1...Sde7
- 2.Bf4#
- 1...Sd4
- 2.Bxd4#
- 1...Sh4
- 2.Bd4#
- 1...Sd6
- 2.Bd4#
- 1...Sh6
- 2.Bd4#
- 1...Sfe7
- 2.Bd4#
- 1...Sg7
- 2.Bd4#
- 1...Sxc3!
- 1...Sxg3
- 1.Qe5?
- 1...Sxc3
- 2.Qf4#
- 1...Sxf6
- 2.Qf4#
- 1...Sc7
- 2.Qf4#
- 1...Sb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sde7
- 2.Qf4#
- 1...Sd4
- 2.Qxd4#
- 1...Sh4
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sh6
- 2.Qd4#
- 1...Sfe7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...Sxg3!
- 1...Sxc3
- 1.Qc7?
- 1...Sxc3
- 2.Qf4#
- 1...Sxf6
- 2.Qf4#
- 1...Sxg3
- 2.Bd4#
- 1...Sb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sde7
- 2.Qf4#
- 1...Sd4
- 2.Bxd4#
- 1...Sh4
- 2.Bd4#
- 1...Sd6
- 2.Bd4#
- 1...Sh6
- 2.Bd4#
- 1...Sfe7
- 2.Bd4#
- 1...Sg7
- 2.Bd4#
- 1...Sxc7!
- 1...Sxc3
- 1.Qxb6+?
- 1...Sd4
- 2.Bxd4#
- 2.Qxd4#
- 1...Sxb6!
- 1...Sd4
- 1.Bc4?
- Keys
- 1.Qd6!
- 1...Sxc3
- 2.Qf4#
- 1...Sxf6
- 2.Qf4#
- 1...Sxg3
- 2.Bd4#
- 1...Sxd6
- 2.Bd4#
- 1...Sc7
- 2.Qf4#
- 1...Sb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sde7
- 2.Qf4#
- 1...Sd4
- 2.Bxd4#
- 1...Sh4
- 2.Bd4#
- 1...Sh6
- 2.Bd4#
- 1...Sfe7
- 2.Bd4#
- 1...Sg7
- 2.Bd4#
- 1...Sxc3
- 1.Qd6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD,XP(B)::QAB1(J)
- S(b);N_GUARD::QAB1(J)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(b);N_GUARD,XB(I)::QAB1(J)
- S(c);N_GUARD,XP(E)::B(I)
- S(c);N_GUARD::B(I),XS(c)
- S(c);N_GUARD::B(I)
- Tries
- Try
- B(C);
- Vars
- S(b);N_GUARD,XP(B)::QAB1(J)
- S(b);N_GUARD,XB(I)::QAB1(J)
- S(c);N_GUARD,XP(E)::B(I)
- S(b);N_GUARD::QAB1(J)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(c);N_GUARD::B(I),XS(c)
- S(c);N_GUARD::B(I)
- Refutation
- S(b);
- Try
- B(I);
- Vars
- S(c);N_GUARD,XP(E)::B(I)
- S(b);N_GUARD::B(I)
- S(b);N_GUARD::B(I),XS(b)
- S(c);N_GUARD::B(I),XS(c)
- S(c);N_GUARD::B(I)
- Refutation
- S(b);XP(B)
- Try
- Q(J);
- Vars
- S(b);N_GUARD,XP(B)::QAB1(J)
- S(b);N_GUARD,XB(I)::QAB1(J)
- S(b);N_GUARD::QAB1(J)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(c);N_GUARD::QAB1(J),XS(c)
- S(c);N_GUARD::QAB1(J)
- Refutation
- S(c);XP(E)
- Try
- Q(J);
- Vars
- S(b);N_GUARD,XP(B)::QAB1(J)
- S(b);N_GUARD,XB(I)::QAB1(J)
- S(c);N_GUARD,XP(E)::B(I)
- S(b);N_GUARD::QAB1(J)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(c);N_GUARD::B(I),XS(c)
- S(c);N_GUARD::B(I)
- Refutation
- S(b);XQ(J)
- Try
- Q(J);CHECK,XP(d)
- Refutation
- S(b);XQ(J)
- Try
- Actual
- Q(J);
- Vars
- S(b);N_GUARD,XP(B)::QAB1(J)
- S(b);N_GUARD,XB(I)::QAB1(J)
- S(c);N_GUARD,XP(E)::B(I)
- S(c);N_GUARD,XQ(J)::B(I)
- S(b);N_GUARD::QAB1(J)
- S(b);N_GUARD::QAB1(J),XS(b)
- S(c);N_GUARD::B(I),XS(c)
- S(c);N_GUARD::B(I)
Developed and maintained by Brian Stephenson.
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