MESON Chess Problem Database

Problem Display
PID: 207597 (8/7b/1qrpp3/8/1npk1n1N/bP1p4/PR4R1/B3QK1B w - - 0 1)

Mechura, Ivan

Sachova skladba, 2014

8/7b/1qrpp3/8/1npk1n1N/bP1p4/PR4R1/B3QK1B

#2

9 + 11

SOLUTION

  • SOUND
  • Tries
    • 1.Qe3+?
      • 1...Kc3
        • 2.Rbc2#
      • 1...Kd5
        • 2.Rg5#
      • 1...Kxe3!
  • Keys
    • 1.Qc3+!
      • 1...Kxc3
        • 2.Rbc2#
      • 1...Ke3
        • 2.Rg3#
      • 1...Ke4
        • 2.Rge2#
      • 1...Kc5
        • 2.Qxc4#
      • 1...Kd5
        • 2.Rg5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(e);P_SPINP(b),S_FLIGHT::B(A)+R(F),DCHECK
        • K(e);P-FLIGHT::B(D)+R(G),DCHECK
      • Refutation
        • K(e);S_FLIGHT,XQ(B)
  • Actual
    • Q(B);CHECK
    • Vars
      • K(e);S_FLIGHT,XQ(B)::B(A)+R(F),DCHECK
      • K(e);P_SPINP(b),S_FLIGHT::R(G)
      • K(e);P-FLIGHT::B(D)+R(G),DCHECK
      • K(e);P_SPINP(d),S_FLIGHT::QAR1(B),XP(d)
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