MESON Chess Problem Database

Problem Display
PID: 38619 (6k1/2N1pr2/7Q/8/8/KB6/8/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

6k1/2N1pr2/7Q/8/8/KB6/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qg6+?
      • 1...Kf8
        • 2.Qxf7#
      • 1...Kh8!
    • 1.Qh7+?
      • 1...Kf8
        • 2.Qxf7#
        • 2.Qh8#
      • 1...Kxh7!
  • Keys
    • 1.Se6!
      • 1...Rf1
        • 2.Qg7#
      • 1...Rf2
        • 2.Qg7#
      • 1...Rf3
        • 2.Qg7#
      • 1...Rf4
        • 2.Qg7#
      • 1...Rf5
        • 2.Qg7#
      • 1...Rf6
        • 2.Qg7#
      • 1...Rg7
        • 2.Qxg7#
      • 1...Rh7
        • 2.Qf8#
      • 1...Rf8
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);N_SPINR(b),P-FLIGHT::QAR1(C),XR(b)
      • Refutation
        • K(c);N_SPINR(b),P-FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);N_SPINR(b),S_FLIGHT,XQ(C)
  • Actual
    • S(D);N_PINR(b)
    • Vars
      • R(b);N_GUARD::QAR1(C)
      • R(b);N_GUARD,P_PINB(B)::QAR1(C)
      • R(b);N_GUARD::QAR1(C),XR(b)
      • R(b);N_GUARD,SBLOCK::QAR1(C)
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