MESON Chess Problem Database

Problem Display
PID: 274079 (8/8/p7/2R5/1k6/1P2Q3/3Kn3/8 w - - 0 1)

Zimmer, Eligiusz

Uralski Problemist, 2002

8/8/p7/2R5/1k6/1P2Q3/3Kn3/8

#2

4 + 3

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Tries
    • 1.Rc4+?
      • 1...Ka5
        • 2.Qc5#
      • 1...Kb5
        • 2.Qc5#
      • 1...Ka3!
    • 1.Qc3+?
      • 1...Ka3
        • 2.Ra5#
      • 1...Sxc3!
  • Keys
    • 1.Ra5!
      • threat
        • 2.Qb6#
      • 1...Kxa5
        • 2.Qc5#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sd4
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(b);N_GUARD,S_FLIGHT::QAR2(C)
        • K(b);N_GUARD,P-FLIGHT::QAR1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_CUTS(a),S_FLIGHT::R(D)
      • Refutation
        • S(a);XQ(C)
  • Actual
    • R(D);
    • Threat
      • QAR2(C)
    • Vars
      • K(b);N_GUARD,S_FLIGHT,XR(D)::QAR2(C)
      • S(a);N_GUARD::QAB1(C),XS(a)
      • S(a);N_GUARD::QAB1(C)
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