MESON Chess Problem Database

Problem Display
PID: 23371 (kN1Bn2Q/3p4/1K6/8/8/8/8/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

kN1Bn2Q/3p4/1K6/8/8/8/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qh1+?
      • 1...Kxb8
        • 2.Qb7#
      • 1...d5!
  • Keys
    • 1.Sxd7!
      • threat
        • 2.Qa1#
        • 2.Qh1#
      • 1...Sg7
        • 2.Qh1#
      • 1...Sd6
        • 2.Qa1#
      • 1...Sf6
        • 2.Bxf6#
      • 1...Sc7
        • 2.Bxc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(B)::QAR1(D)
      • Refutation
        • P(a);P_SPINP(a)
  • Actual
    • S(B);XP(a)
    • Threat
      • DUALS(2)
    • Vars
      • S(c);::QAB(D)
      • S(c);OGATEB::QAR(D)+B(C),XS(c)
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