MESON Chess Problem Database

Problem Display
PID: 234731 (8/8/p1n2Q2/1B6/4k3/7K/1B6/8 w - - 0 1)

Lincoln, Robert A

Kudesnik, 2013

8/8/p1n2Q2/1B6/4k3/7K/1B6/8

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qxc6#
  • Tries
    • 1.Kg3?
      • threat
        • 2.Qf3#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kd5
        • 2.Qxc6#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sd4!
  • Keys
    • 1.Kg4!
      • threat
        • 2.Qf3#
      • 1...Se5+
        • 2.Qxe5#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kd5
        • 2.Qxc6#
      • 1...Sd4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(D),XS(c)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAB1(D)
      • Vars
        • K(a);P-FLIGHT::QAB1(D)
        • K(a);S_FLIGHT::QAB1(D),XS(c)
        • S(c);N_GUARD::QAR1(D),XS(c)
      • Refutation
        • S(c);
  • Actual
    • K(B);S_FLIGHT
    • Threat
      • QAB1(D)
    • Vars
      • S(c);CHECK,N_GUARD::QAR1(D),XS(c)
      • K(a);P-FLIGHT::QAB1(D)
      • K(a);S_FLIGHT::QAB1(D),XS(c)
      • S(c);N_GUARD::QAR1(D),XS(c)
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