MESON Chess Problem Database
Problem Display
PID: 110756 (8/8/6p1/6P1/4N1R1/2Qpkn2/3p1R2/3K2n1 w - - 0 1)
Petkov, Petko Andonov
Revista de Sah, 1958
#2
6 + 6
| 3310 | 2345 Chess Problems | 1997 |
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Se2
- 2.Rxe2#
- 1...Sh3
- 2.Re2#
- 1...Se1
- 2.Qc5#
- 1...Sh2
- 2.Qc5#
- 1...Sd4
- 2.Qxd2#
- 1...Sh4
- 2.Qc5#
- 1...Se5
- 2.Qc5#
- 1...Sxg5
- 2.Qc5#
- 1...Se2
- Tries
- 1.Sxd2?
- 1...Sxd2
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Sxg5
- 2.Qd4#
- 2.Qc5#
- 1...Se2
- 2.Rxe2#
- 2.Rxf3#
- 1...Sh3
- 2.Re2#
- 2.Rxf3#
- 1...Se1
- 2.Qd4#
- 2.Qc5#
- 1...Sh2
- 2.Qd4#
- 2.Qc5#
- 1...Sd4
- 2.Qxd4#
- 1...Sh4
- 2.Qd4#
- 2.Qc5#
- 1...Se5
- 2.Qd4#
- 2.Qc5#
- 1...Kxf2!
- 1...Sxd2
- 1.Sg3?
- 1...Sxg5
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Se2
- 2.Rxe2#
- 1...Sh3
- 2.Re2#
- 1...Se1
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Sh2
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Sd4
- 2.Qxd2#
- 2.Qxd4#
- 1...Sh4
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Se5
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Kxf2!
- 1...Sxg5
- 1.Sc5?
- 1...Sxg5
- 2.Qxd2#
- 2.Qd4#
- 1...Se2
- 2.Rxe2#
- 1...Sh3
- 2.Re2#
- 1...Se1
- 2.Qxd2#
- 2.Qd4#
- 1...Sh2
- 2.Qxd2#
- 2.Qd4#
- 1...Sd4
- 2.Qxd2#
- 2.Qxd4#
- 1...Sh4
- 2.Qxd2#
- 2.Qd4#
- 1...Se5
- 2.Qxd2#
- 2.Qd4#
- 1...Kxf2!
- 1...Sxg5
- 1.Sd6?
- 1...Sxg5
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Se2
- 2.Rxe2#
- 1...Sh3
- 2.Re2#
- 1...Se1
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Sh2
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Sd4
- 2.Qxd2#
- 2.Qxd4#
- 1...Sh4
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Se5
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Kxf2!
- 1...Sxg5
- 1.Sf6?
- 1...Sxg5
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Se2
- 2.Rxe2#
- 1...Sh3
- 2.Re2#
- 1...Se1
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Sh2
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Sd4
- 2.Qxd2#
- 2.Qxd4#
- 1...Sh4
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Se5
- 2.Qxd2#
- 2.Qd4#
- 2.Qc5#
- 1...Kxf2!
- 1...Sxg5
- 1.Rf4?
- 1...Sxg5
- 2.Qc5#
- 1...Se2
- 2.R2xf3#
- 1...Sh3
- 2.R2xf3#
- 1...Se1
- 2.Qc5#
- 1...Sh2
- 2.Qc5#
- 1...Sd4
- 2.Qxd2#
- 1...Sh4
- 2.Qc5#
- 1...Se5
- 2.Qc5#
- 1...Kxf4!
- 1...Sxg5
- 1.Rh4?
- 1...Sxg5
- 2.Qc5#
- 1...Se2
- 2.Rxe2#
- 1...Sh3
- 2.Re2#
- 1...Se1
- 2.Qc5#
- 1...Sh2
- 2.Qc5#
- 1...Sd4
- 2.Qxd2#
- 1...Se5
- 2.Qc5#
- 1...Sxh4!
- 1...Sxg5
- 1.Sxd2?
- Keys
- 1.Qf6!
- 1...Sxg5
- 2.Qb6#
- 1...Se5
- 2.Qb6#
- 1...Se2
- 2.Rxf3#
- 1...Sh3
- 2.Rxf3#
- 1...Se1
- 2.Qb6#
- 1...Sh2
- 2.Qb6#
- 1...Sd4
- 2.Qf4#
- 1...Sh4
- 2.Qb6#
- 1...Sxg5
- 1.Qf6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(B)
- S(e);N_GUARD::QAB(C)
- S(e);N_GUARD,SBLOCK::QAB1(C),XP(b)
- S(e);N_GUARD,XP(F)::QAB(C)
- Tries
- Try
- S(D);XP(b)
- Vars
- S(e);N_GUARD::QAB1(C),XS(e)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XR(B)
- Try
- S(D);
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(B)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XR(B)
- Try
- S(D);
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(B)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XR(B)
- Try
- S(D);
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(B)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XR(B)
- Try
- S(D);
- Vars
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(B)
- Refutation
- K(d);N_SPINP(c),S_FLIGHT,XR(B)
- Try
- R(E);
- Vars
- S(e);N_GUARD,XP(F)::QAB(C)
- S(a);N_GUARD::R1(B),XS(e)
- S(e);N_GUARD::QAB(C)
- S(e);N_GUARD,SBLOCK::QAB1(C),XP(b)
- Refutation
- K(d);N_SPINP(c),P_SPINS(e),S_FLIGHT,XR(E)
- Try
- R(E);
- Vars
- S(e);N_GUARD,XP(F)::QAB(C)
- S(a);N_GUARD::R1(B),XS(a)
- S(a);N_GUARD::R1(B)
- S(e);N_GUARD::QAB(C)
- S(e);N_GUARD,SBLOCK::QAB1(C),XP(b)
- Refutation
- S(e);XR(E)
- Try
- Actual
- Q(C);N_PINP(c)
- Vars
- S(e);N_GUARD,XP(F)::QAB(C)
- S(e);N_GUARD::QAB(C)
- S(a);N_GUARD::R1(B),XS(e)
- S(e);SBLOCK::QAB1(C)
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