MESON Chess Problem Database

Problem Display
PID: 135527 (8/4p3/5pp1/5k2/8/4KB2/1Q6/8 w - - 0 1)

Gnat, E

6/13 HM., Bron MT, 1998

8/4p3/5pp1/5k2/8/4KB2/1Q6/8

#2

3 + 4

145 StrateGems 2009
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qb5+?
      • 1...Ke6
        • 2.Qd5#
      • 1...e5!
  • Keys
    • 1.Qd4!
      • 1...Kg5
        • 2.Qf4#
      • 1...Ke6
        • 2.Qd5#
      • 1...g5
        • 2.Qe4#
      • 1...e5
        • 2.Qg4#
      • 1...e6
        • 2.Qf4#

This anticipates 172513(2002)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • P(d);P_SPINP(d)
  • Actual
    • Q(A);
    • Vars
      • K(a);P-FLIGHT::QAB1(A)
      • K(a);S_FLIGHT::QAB1(A)
      • P(c);SBLOCK::QAB1(A)
      • P(d);SBLOCK::QAB1(A)
      • P(d);SBLOCK::QAR1(A)
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