MESON Chess Problem Database

Problem Display
PID: 230766 (N1b1N3/B3P3/p1k1p3/2b5/2Q5/8/2K5/8 w - - 0 1)

Lincoln, Robert A

The Problemist, 1988

N1b1N3/B3P3/p1k1p3/2b5/2Q5/8/2K5/8

#2

6 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Qxc5+?
      • 1...Kd7
        • 2.Sf6#
      • 1...Kb7!
  • Keys
    • 1.Sac7!
      • 1...Kb7
        • 2.Qxa6#
      • 1...Kd7
        • 2.Qxe6#
      • 1...Bb7
        • 2.Qa4#
      • 1...Bd7
        • 2.Qe4#
      • 1...a5
        • 2.Qb5#
      • 1...e5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK,XB(a)
      • Vars
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(c);N_SPINB(a),S_FLIGHT::QAB1(B),XP(b)
      • K(c);N_SPINB(a),S_FLIGHT::QAB1(B),XP(d)
      • B(e);SBLOCK::QAB(B)
      • P(b);N_GUARD::QAB1(B)
      • P(d);N_GUARD::QAB1(B)
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