MESON Chess Problem Database

Problem Display
PID: 23077 (8/8/8/1KB1n3/8/1k6/Np6/1Q6 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/8/8/1KB1n3/8/1k6/Np6/1Q6

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qe4?
      • threat
        • 2.Qa4#
      • 1...b1Q
        • 2.Qxb1#
      • 1...b1S
        • 2.Qxb1#
      • 1...b1B
        • 2.Qxb1#
      • 1...b1R
        • 2.Qxb1#
      • 1...Sc4
        • 2.Qxc4#
      • 1...Kxa2!
  • Keys
    • 1.Sb4!
      • 1...Ka3
        • 2.Qa2#
      • 1...Kc3
        • 2.Qc2#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sf3
        • 2.Qd3#
      • 1...Sc4
        • 2.Qd3#
      • 1...Sg4
        • 2.Qd3#
      • 1...Sc6
        • 2.Qd3#
      • 1...Sg6
        • 2.Qd3#
      • 1...Sd7
        • 2.Qd3#
      • 1...Sf7
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);N_PINP(a)
      • Threat
        • QAB1(A)
      • Vars
        • P(a);OGATEB::QAR2(A),XQ(a)
        • P(a);OGATEB::QAR2(A),XS(a)
        • P(a);OGATEB::QAR2(A),XB(a)
        • P(a);OGATEB::QAR2(A),XR(a)
        • S(c);N_GUARD::QAB1(A),XS(c)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
  • Actual
    • S(B);
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
      • S(c);N_GUARD::QAR2(A),XS(c)
      • S(c);N_GUARD::QAR2(A)
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