MESON Chess Problem Database

Problem Display
PID: 182400 (8/5p2/7p/4B1kP/4Q3/8/4K3/8 w - - 0 1)

Zimmer, Eligiusz

Problem Observer, 2014

8/5p2/7p/4B1kP/4Q3/8/4K3/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Kf3?
      • threat
        • 2.Qg4#
      • 1...Kxh5
        • 2.Qg4#
      • 1...f5!
    • 1.Bf6+?
      • 1...Kxh5
        • 2.Qf5#
      • 1...Kxf6!
    • 1.Qf3?
      • threat
        • 2.Bf6#
      • 1...Kh4
        • 2.Bf6#
      • 1...f6
        • 2.Bxf6#
      • 1...f5!
  • Keys
    • 1.Bg3!
      • 1...Kxh5
        • 2.Qf5#
      • 1...Kf6
        • 2.Qe5#
      • 1...f5
        • 2.Qh4#
      • 1...f6
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT,XP(D)::QAB1(B)
      • Refutation
        • P(c);
    • Try
      • B(C);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(D)::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT,XB(C)
    • Try
      • Q(B);
      • Threat
        • B(C)
      • Vars
        • K(a);S_FLIGHT::B(C)
        • P(c);::B(C),XP(c)
      • Refutation
        • P(c);
  • Actual
    • B(C);
    • Vars
      • K(a);P-FLIGHT,XP(D)::QAR2(B)
      • K(a);S_FLIGHT::QAB1(B)
      • P(c);SBLOCK::QAB1(B)
      • P(c);N_GUARD::QAR1(B)
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