MESON Chess Problem Database

Problem Display
PID: 255061 (8/4Bp2/2p5/2pPk1P1/8/1P3K1Q/2P5/8 w - - 0 1)

Berger, F

Deutsche Schachzeitung, 1925

8/4Bp2/2p5/2pPk1P1/8/1P3K1Q/2P5/8

#2

7 + 4

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Bf6+?
      • 1...Kxd5
        • 2.Qd7#
      • 1...Kd6!
    • 1.Qf5+?
      • 1...Kd4
        • 2.Bf6#
      • 1...Kxf5!
    • 1.Qe6+?
      • 1...Kd4
        • 2.Bf6#
      • 1...fxe6!
  • Keys
    • 1.Qd7!
      • threat
        • 2.Bf6#
      • 1...Kd4
        • 2.Bf6#
      • 1...f6
        • 2.Bxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(E)::QAR2(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::B(G)
      • Refutation
        • K(b);P-FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);S_FLIGHT::B(G)
      • Refutation
        • P(d);XQ(D)
  • Actual
    • Q(D);
    • Threat
      • B(G)
    • Vars
      • K(b);S_FLIGHT::B(G)
      • P(d);::B(G),XP(d)
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