MESON Chess Problem Database

Problem Display
PID: 47769 (8/8/8/8/4BQ2/7p/6P1/3K2k1 w - - 0 1)

Velikhanov, Kenan

StrateGems, 2003

8/8/8/8/4BQ2/7p/6P1/3K2k1

#2

4 + 2

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qf2+?
      • 1...Kh1
        • 2.gxh3#
        • 2.g3#
        • 2.g4#
      • 1...Kh2
        • 2.g3#
        • 2.g4#
      • 1...Kxf2!
    • 1.g3?
      • 1...Kh2
        • 2.Qf2#
      • 1...h2!
  • Keys
    • 1.Qg3!
      • 1...Kf1
        • 2.Qe1#
      • 1...Kh1
        • 2.gxh3#
      • 1...hxg2
        • 2.Qxg2#
      • 1...h2
        • 2.Qe1#

Anticipated by 80731(1988)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(D)
    • Try
      • P(B);
      • Vars
        • K(a);S_FLIGHT::QAR2(D)
      • Refutation
        • P(b);
  • Actual
    • Q(D);
    • Vars
      • K(a);P-FLIGHT::QAR1(D)
      • K(a);P-FLIGHT::B(C)+P(B),XP(b)
      • P(b);OGATE,P_SPINP(b),XP(B)::QAR1(D),XP(b)
      • P(b);SBLOCK::QAR2(D)
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