MESON Chess Problem Database

Problem Display
PID: 157479 (8/8/6K1/8/6k1/4Q1bN/8/8 w - - 0 1)

Godbout, Alain J

Schach-WW, 1998

8/8/6K1/8/6k1/4Q1bN/8/8

#2

3 + 2

15148 Sadier Collection 2016
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sf2+?
      • 1...Kh4
        • 2.Qg5#
        • 2.Qh6#
        • 2.Qe7#
      • 1...Bxf2!
    • 1.Qe2+?
      • 1...Kh4
        • 2.Qh5#
      • 1...Kxh3!
  • Keys
    • 1.Sg1!
      • threat
        • 2.Qg5#
      • 1...Kh4
        • 2.Qg5#
      • 1...Bf4
        • 2.Qh3#
      • 1...Bh4
        • 2.Qf3#

Anticipated by 172321(1996)

This anticipates 107315(2006)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • B(a);XS(B)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
  • Actual
    • S(B);
    • Threat
      • QAR1(A)
    • Vars
      • K(b);P-FLIGHT::QAB1(A)
      • B(a);OGATE,SBLOCK::QAB1(A)
      • B(a);SBLOCK::QAB1(A)
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