MESON Chess Problem Database

Problem Display
PID: 108516 (8/3K4/1Q6/8/2k5/8/4n3/N3NB2 w - - 0 1)

Kakol, Leszek

Razem, 1987

8/3K4/1Q6/8/2k5/8/4n3/N3NB2

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sac2?
      • 1...Kc3
        • 2.Qb4#
      • 1...Kd5!
    • 1.Sb3?
      • 1...Kd5
        • 2.Qe6#
      • 1...Kc3!
  • Keys
    • 1.Sf3!
      • 1...Kc3
        • 2.Qb3#
      • 1...Kd3
        • 2.Qd4#
      • 1...Kd5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • K(b);N_SPINS(a),P-FLIGHT::QAB1(D)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • S(A);
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::QAB1(D)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(b);N_SPINS(a),P-FLIGHT::QAR1(D)
      • K(b);S_FLIGHT::QAR1(D)
      • K(b);N_SPINS(a),S_FLIGHT::QAB1(D)
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