MESON Chess Problem Database

Problem Display
PID: 112935 (6K1/6N1/6k1/6b1/8/8/8/6Q1 w - - 0 1)

Ceriani, Luigi

32 Personaggi, 1955

6K1/6N1/6k1/6b1/8/8/8/6Q1

#2

3 + 2

3713 Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qb1+?
      • 1...Kh6
        • 2.Qh7#
      • 1...Kf6!
    • 1.Qg3?
      • 1...Kf6
        • 2.Qd6#
      • 1...Kh6!
  • Keys
    • 1.Qg4!
      • 1...Kf6
        • 2.Qe6#
      • 1...Kh6
        • 2.Qh5#

Anticipated by 17505(1947)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK,N_PINB(a)
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);N_SPINB(a),P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);N_SPINB(a),P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);N_SPINB(a),P-FLIGHT::QAR1(A)
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