MESON Chess Problem Database

Problem Display
PID: 22729 (6K1/6P1/5b1k/7p/7P/6Q1/8/8 w - - 0 1)

Hildebrand, Alexander

3rd Prize, Chepizhni-60 JT (Kudesnik), 1994

6K1/6P1/5b1k/7p/7P/6Q1/8/8

#2

4 + 3

2786 More Fun with Chess Miniatures 2000
56 The Problemist 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Ba1
      • 2.Qg5#
    • 1...Bb2
      • 2.Qg5#
    • 1...Bc3
      • 2.Qg5#
    • 1...Bd4
      • 2.Qg5#
    • 1...Be5
      • 2.Qg5#
    • 1...Bg5
      • 2.Qxg5#
    • 1...Bxg7
      • 2.Qg5#
      • 2.Qxg7#
  • Tries
    • 1.Kf7?
      • threat
        • 2.Qg6#
      • 1...Kh7
        • 2.Qg6#
      • 1...Bg5!
    • 1.Qf4+?
      • 1...Bg5
        • 2.Qxg5#
      • 1...Kg6!
    • 1.Qe3+?
      • 1...Bg5
        • 2.Qxg5#
      • 1...Kg6!
  • Keys
    • 1.Kh8!
      • 1...Bxg7+
        • 2.Qxg7#
      • 1...Bxh4
        • 2.g8S#
      • 1...Bg5
        • 2.Qxg5#
      • 1...Ba1
        • 2.Qg5#
      • 1...Bb2
        • 2.Qg5#
      • 1...Bc3
        • 2.Qg5#
      • 1...Bd4
        • 2.Qg5#
      • 1...Be5
        • 2.Qg5#
      • 1...Be7
        • 2.g8S#
      • 1...Bd8
        • 2.g8S#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD::QAB1(A)
    • B(b);N_GUARD::QAB1(A),XB(b)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • QAR1(A)
      • Vars
        • K(c);P-FLIGHT::QAB1(A)
      • Refutation
        • B(b);
    • Try
      • Q(A);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAB1(A),XB(b)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAB1(A),XB(b)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • K(D);P-FLIGHT,P_SPINP(C)
    • Vars
      • B(b);CHECK,OGATE,XP(C)::QAB1(A),XB(b)
      • B(b);N_PINP(C),XP(B)::P=S
      • B(b);N_GUARD,N_PINP(C)::QAB1(A),XB(b)
      • B(b);N_GUARD::QAB1(A)
      • B(b);N_PINP(C)::P=S
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