MESON Chess Problem Database

Problem Display
PID: 171368 (8/7Q/6p1/7b/8/5NPk/5K2/8 w - - 0 1)

Antipov, Viacheslav Pavlovich

Temp-64 (Nikolaev), 1995

8/7Q/6p1/7b/8/5NPk/5K2/8

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Qd7#
    • 1...g5
      • 2.Qxh5#
  • Tries
    • 1.Sh2?
      • 1...g5
        • 2.Qxh5#
      • 1...Kxh2!
    • 1.Se5?
      • 1...g5
        • 2.Qxh5#
      • 1...Kh2!
    • 1.Qh6?
      • 1...g5
        • 2.Qxh5#
      • 1...Kg4!
    • 1.Qe7?
      • threat
        • 2.Qh4#
      • 1...Kg4
        • 2.Qe6#
        • 2.Qd7#
      • 1...g5!
    • 1.g4?
      • 1...g5
        • 2.Qxh5#
      • 1...Kxg4!
  • Keys
    • 1.Qh8!
      • 1...Kg4
        • 2.Qc8#
      • 1...g5
        • 2.Qxh5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINB(b),S_FLIGHT::QAB(D)
    • P(c);N_GUARD::QAR2(D),XB(b)
  • Tries
    • Try
      • S(B);
      • Vars
        • P(c);N_GUARD::QAR2(D),XB(b)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
    • Try
      • S(B);
      • Vars
        • P(c);N_GUARD::QAR2(D),XB(b)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Vars
        • P(c);N_GUARD::QAR2(D),XB(b)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT
    • Try
      • Q(D);N_PINB(b)
      • Threat
        • QAR1(D)
      • Refutation
        • P(c);
    • Try
      • P(C);
      • Vars
        • P(c);N_GUARD::QAR2(D),XB(b)
      • Refutation
        • K(a);N_SPINB(b),S_FLIGHT,XP(C)
  • Actual
    • Q(D);
    • Vars
      • K(a);N_SPINB(b),S_FLIGHT::QAB(D)
      • P(c);N_GUARD::QAR2(D),XB(b)
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