MESON Chess Problem Database

Problem Display
PID: 46477 (8/4Q1b1/6p1/7k/8/5K2/5N2/8 w - - 0 1)

Lincoln, Robert A

Still More Fun with Chess Miniatures, 2002

8/4Q1b1/6p1/7k/8/5K2/5N2/8

#2

3 + 3

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kh6
      • 2.Qh4#
  • Tries
    • 1.Sh3?
      • threat
        • 2.Qg5#
      • 1...Kh6
        • 2.Qh4#
      • 1...Bf6
        • 2.Qh7#
      • 1...g5
        • 2.Qxg5#
      • 1...Bh6!
    • 1.Qxg7?
      • 1...Kh4
        • 2.Qh6#
      • 1...g5
        • 2.Qh7#
      • 1...Kg5!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qg5#
      • 1...Kh6
        • 2.Qh4#
      • 1...Bf6
        • 2.Qh7#
      • 1...g5
        • 2.Qxg5#
      • 1...Bh6
        • 2.Sg3#

Anticipated by 215834(1979)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(C)
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
        • B(c);OGATE::QAR2(C)
        • P(b);::QAR1(C),XP(b)
      • Refutation
        • B(c);
    • Try
      • Q(C);XB(c)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
        • P(b);SBLOCK::QAR2(C)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(b)
  • Actual
    • S(A);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);P-FLIGHT::QAR2(C)
      • B(c);OGATE::QAR2(C)
      • P(b);::QAR1(C),XP(b)
      • B(c);SBLOCK::S(A)
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