MESON Chess Problem Database
Problem Display
PID: 132986 (1Q6/1p6/1p1P3P/1N6/4p3/3pknK1/6R1/8 w - - 0 1)
Petkov, Petko Andonov
The Field, 1959
(First published on Thu Nov 5 1959)
#2
6 + 6
SOLUTION
- SOUND
- Tries
- 1.Qa7?
- 1...d2
- 2.Qa3#
- 1...Se1
- 2.Qxb6#
- 1...Sg1
- 2.Qxb6#
- 1...Sd2
- 2.Qxb6#
- 1...Sh2
- 2.Qxb6#
- 1...Sh4
- 2.Qxb6#
- 1...Se5
- 2.Qxb6#
- 1...Sg5
- 2.Qxb6#
- 1...Sd4!
- 1...d2
- 1.Qc7?
- 1...d2
- 2.Qc3#
- 1...Se1
- 2.Qxb6#
- 1...Sg1
- 2.Qxb6#
- 1...Sd2
- 2.Qxb6#
- 1...Sh2
- 2.Qxb6#
- 1...Sh4
- 2.Qxb6#
- 1...Se5
- 2.Qxb6#
- 1...Sg5
- 2.Qxb6#
- 1...Sd4!
- 1...d2
- 1.Qd8?
- 1...Sd4
- 2.Qg5#
- 1...Se1
- 2.Qg5#
- 2.Qxb6#
- 1...Sg1
- 2.Qg5#
- 2.Qxb6#
- 1...Sd2
- 2.Qg5#
- 2.Qxb6#
- 1...Sh2
- 2.Qg5#
- 2.Qxb6#
- 1...Sh4
- 2.Qg5#
- 2.Qxb6#
- 1...Se5
- 2.Qg5#
- 2.Qxb6#
- 1...Sg5
- 2.Qxg5#
- 2.Qxb6#
- 1...d2!
- 1...Sd4
- 1.Qh8?
- 1...d2
- 2.Qc3#
- 1...Sd4
- 2.Qxd4#
- 1...Se1
- 2.Qd4#
- 1...Sg1
- 2.Qd4#
- 1...Sd2
- 2.Qd4#
- 1...Sh2
- 2.Qd4#
- 1...Sh4
- 2.Qd4#
- 1...Sg5
- 2.Qd4#
- 1...Se5!
- 1...d2
- 1.Qa7?
- Keys
- 1.Qg8!
- 1...d2
- 2.Qb3#
- 1...Sd4
- 2.Qg5#
- 1...Se1
- 2.Qg5#
- 1...Sg1
- 2.Qg5#
- 1...Sd2
- 2.Qg5#
- 1...Sh2
- 2.Qg5#
- 1...Sh4
- 2.Qg5#
- 1...Se5
- 2.Qg5#
- 1...Sg5
- 2.Qxg5#
- 1...d2
- 1.Qg8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- Tries
- Try
- Q(F);P_PINP(e)
- Vars
- P(a);OGATEB::QAR(F)
- S(c);N_GUARD::QAB(F),XP(e)
- Refutation
- S(c);N_SPINP(e)
- Try
- Q(F);
- Vars
- P(a);OGATEB::QAR2(F)
- S(c);N_GUARD::QAB(F),XP(e)
- Refutation
- S(c);
- Try
- Q(F);
- Vars
- S(c);N_GUARD::QAB(F)
- Refutation
- P(a);
- Try
- Q(F);
- Vars
- P(a);OGATEB::QAR2(F)
- S(c);N_GUARD::QAB1(F),XS(c)
- S(c);N_GUARD::QAB1(F)
- Refutation
- S(c);
- Try
- Actual
- Q(F);
- Vars
- P(a);OGATEB::QAR(F)
- S(c);N_GUARD::QAB(F)
- S(c);N_GUARD::QAB(F),XS(c)
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