MESON Chess Problem Database

Problem Display
PID: 276176 (8/8/8/8/2Q5/r2p1RRK/8/3k4 w - - 0 1)

Ouellet, Charles

Die Schwalbe, 2024

8/8/8/8/2Q5/r2p1RRK/8/3k4

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Rf1#
      • 2.Rg1#
  • Tries
    • 1.Rf2?
      • threat
        • 2.Rg1#
      • 1...d2
        • 2.Rf1#
      • 1...Ke1!
  • Keys
    • 1.Rg2!
      • threat
        • 2.Rf1#
      • 1...Ke1
        • 2.Qc1#
      • 1...d2
        • 2.Rg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • R(B)
      • Vars
        • P(c);P_PINR(B),SBLOCK::R(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(B);
    • Threat
      • R(A)
    • Vars
      • K(a);N_GUARD,P-FLIGHT::QAR2(D)
      • P(c);P_PINR(A),SBLOCK::R(B)
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