MESON Chess Problem Database

Problem Display
PID: 232311 (8/1p4Bq/4B3/8/8/1K1k4/5Q2/8 w - - 0 1)

Lincoln, Robert A

Kudesnik, 2001

8/1p4Bq/4B3/8/8/1K1k4/5Q2/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Bxf5#
    • 1...Qh2
      • 2.Bf5#
    • 1...Qh6
      • 2.Bf5#
    • 1...Qxg7
      • 2.Bf5#
    • 1...Qh8
      • 2.Bf5#
  • Tries
    • 1.Bd4?
      • threat
        • 2.Qe3#
      • 1...Ke4
        • 2.Qe3#
      • 1...Qe4
        • 2.Bc4#
      • 1...Qh6
        • 2.Bf5#
      • 1...Qh3!
  • Keys
    • 1.Bh6!
      • threat
        • 2.Qe3#
      • 1...Ke4
        • 2.Qe3#
      • 1...Qxh6
        • 2.Bf5#
      • 1...Qe4
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • Q(c);N_GUARD::B(C),XQ(c)
    • Q(c);N_GUARD::B(C)
    • Q(c);N_GUARD,XB(D)::B(C)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • Q(c);SBLOCK::B(C)
        • Q(c);N_GUARD::B(C)
      • Refutation
        • Q(c);
  • Actual
    • B(D);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);S_FLIGHT::QAR1(A)
      • Q(c);N_GUARD,XB(D)::B(C)
      • Q(c);SBLOCK::QAR1(A)
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