MESON Chess Problem Database

Problem Display
PID: 76610 (8/6pp/7P/5B1k/3p4/6K1/8/2Q5 w - - 0 1)

Salthouse, Thomas

Chess Amateur (The), 1911

8/6pp/7P/5B1k/3p4/6K1/8/2Q5

#2

4 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...g5
      • 2.Qh1#
    • 1...g6
      • 2.Bg4#
  • Tries
    • 1.Kf4?
      • threat
        • 2.Qh1#
      • 1...Kh4
        • 2.Qh1#
      • 1...Kxh6
        • 2.Qh1#
      • 1...g5+!
    • 1.Be4?
      • 1...gxh6
        • 2.Qc5#
      • 1...g5
        • 2.Qh1#
      • 1...g6
        • 2.Bf3#
      • 1...d3!
  • Keys
    • 1.Bd3!
      • 1...gxh6
        • 2.Qc5#
      • 1...g5
        • 2.Qh1#
      • 1...g6
        • 2.Be2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::QAR(A)
    • P(c);SBLOCK::B(C)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR(A)
        • K(b);P-FLIGHT,XP(D)::QAR(A)
      • Refutation
        • P(c);CHECK
    • Try
      • B(C);
      • Vars
        • P(c);N_GUARD,SBLOCK,XP(D)::QAR(A)
        • P(c);SBLOCK::QAR(A)
        • P(c);SBLOCK::B(C)
      • Refutation
        • P(a);
  • Actual
    • B(C);
    • Vars
      • P(c);N_GUARD,SBLOCK,XP(D)::QAR(A)
      • P(c);SBLOCK::QAR(A)
      • P(c);SBLOCK::B(C)
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