MESON Chess Problem Database

Problem Display
PID: 75120 (8/4p1QK/3BR3/1R6/P1k5/2p5/2P5/3r2b1 w - - 0 1)

Maleika, Gerhard

Die Schwalbe, 2007

8/4p1QK/3BR3/1R6/P1k5/2p5/2P5/3r2b1

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Rb4#
  • Tries
    • 1.Qf7?
      • threat
        • 2.Re4#
      • 1...Kd4
        • 2.Qf4#
      • 1...Rd5
        • 2.Rb4#
      • 1...Bd4
        • 2.Rxe7#
      • 1...Rd4!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Re4#
      • 1...Kd4
        • 2.Qg4#
      • 1...Rd4
        • 2.Qc8#
      • 1...Rd5
        • 2.Rb4#
      • 1...Bd4
        • 2.Rxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK::R1(C)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAB(F)+R(E),DCHECK
      • Vars
        • K(d);P-FLIGHT::QAR2(F)
        • R(a);SBLOCK::R1(C)
        • B(b);SBLOCK,S_CUTR(a)::QAB(F)+R(E),XP(e)
      • Refutation
        • R(a);
  • Actual
    • Q(F);
    • Threat
      • QAB(F)+R(E),DCHECK
    • Vars
      • K(d);P-FLIGHT::QAR(F)
      • R(a);SBLOCK,S_CUTB(b)::QAR(F)
      • R(a);SBLOCK::R1(C)
      • B(b);SBLOCK,S_CUTR(a)::QAB(F)+R(E),XP(e)
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