MESON Chess Problem Database

Problem Display
PID: 39667 (2k1Kn2/3p4/8/4B3/4B1Q1/8/8/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

2k1Kn2/3p4/8/4B3/4B1Q1/8/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sg6
      • 2.Qxd7#
    • 1...Sh7
      • 2.Qxd7#
  • Tries
    • 1.Bc6?
      • 1...Sg6
        • 2.Qxd7#
      • 1...Sh7
        • 2.Qxd7#
      • 1...Se6!
    • 1.Bh2?
      • 1...Sg6
        • 2.Qxd7#
      • 1...Sh7
        • 2.Qxd7#
      • 1...Se6!
    • 1.Bg3?
      • 1...Sg6
        • 2.Qxd7#
      • 1...Sh7
        • 2.Qxd7#
      • 1...Se6!
    • 1.Bf4?
      • 1...Sg6
        • 2.Qxd7#
      • 1...Sh7
        • 2.Qxd7#
      • 1...Se6!
    • 1.Bd6?
      • 1...Sg6
        • 2.Qxd7#
      • 1...Sh7
        • 2.Qxd7#
      • 1...Se6!
    • 1.Qe2?
      • threat
        • 2.Qc4#
        • 2.Qa6#
        • 2.Qc2#
      • 1...d5
        • 2.Qa6#
      • 1...Se6
        • 2.Qa6#
      • 1...d6!
    • 1.Qf5?
      • 1...Sg6
        • 2.Qxd7#
      • 1...Sh7
        • 2.Qxd7#
      • 1...Se6!
  • Keys
    • 1.Qg7!
      • 1...d6
        • 2.Qb7#
      • 1...Se6
        • 2.Qxd7#
      • 1...Sg6
        • 2.Qxd7#
      • 1...Sh7
        • 2.Qxd7#
      • 1...d5
        • 2.Qc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAB1(B),XP(a)
  • Tries
    • Try
      • B(A);
      • Vars
        • S(c);N_GUARD::QAB1(B),XP(a)
      • Refutation
        • S(c);N_SPINP(a)
    • Try
      • B(C);
      • Vars
        • S(c);N_GUARD::QAB1(B),XP(a)
      • Refutation
        • S(c);N_SPINP(a)
    • Try
      • B(C);
      • Vars
        • S(c);N_GUARD::QAB1(B),XP(a)
      • Refutation
        • S(c);N_SPINP(a)
    • Try
      • B(C);
      • Vars
        • S(c);N_GUARD::QAB1(B),XP(a)
      • Refutation
        • S(c);N_SPINP(a)
    • Try
      • B(C);
      • Vars
        • S(c);N_GUARD::QAB1(B),XP(a)
      • Refutation
        • S(c);N_SPINP(a)
    • Try
      • Q(B);N_PINP(a)
      • Threat
        • DUALS(3)
      • Vars
        • P(a);::QAB(B)
        • S(c);::QAB(B)
      • Refutation
        • P(a);
    • Try
      • Q(B);
      • Vars
        • S(c);N_GUARD::QAB1(B),XP(a)
      • Refutation
        • S(c);N_SPINP(a)
  • Actual
    • Q(B);N_PINP(a)
    • Vars
      • P(a);OGATE::QAB1(B)
      • S(c);N_GUARD::QAB1(B),XP(a)
      • P(a);OGATE::QAR1(B)
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