MESON Chess Problem Database

Problem Display
PID: 174767 (B1Q1R2B/8/2N1pRp1/8/K3kr1P/1P5P/2rpNp2/8 w - - 0 1)

Zajic, Helmut

Problemas, 1989

B1Q1R2B/8/2N1pRp1/8/K3kr1P/1P5P/2rpNp2/8

#2

11 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rexe6+?
      • 1...Kf3+
        • 2.Scd4#
      • 1...Kd5+
        • 2.Sb4#
      • 1...Kd3+!
    • 1.Qxe6+?
      • 1...Kf3+
        • 2.Scd4#
        • 2.Qe4#
      • 1...Kd3+!
  • Keys
    • 1.Rfxe6+!
      • 1...Kd3+
        • 2.Sxf4#
      • 1...Kf3+
        • 2.Scd4#
      • 1...Kd5+
        • 2.Sb4#
      • 1...Kf5+
        • 2.Re4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(J);CHECK,XP(f)
      • Vars
        • K(d);CHECK,P_SPINR(e),S_FLIGHT::B(H)+S(F),DCHECK
        • K(d);CHECK,S_FLIGHT::B(H)+S(F),DCHECK
      • Refutation
        • K(d);CHECK,S_FLIGHT
    • Try
      • Q(I);CHECK,XP(f)
      • Refutation
        • K(d);CHECK,S_FLIGHT
  • Actual
    • R(G);CHECK,XP(f)
    • Vars
      • K(d);CHECK,S_FLIGHT::S(A),XR(e)
      • K(d);CHECK,S_FLIGHT::B(H)+S(F),DCHECK
      • K(d);CHECK,S_FLIGHT::QAB(I)+R(G)
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