MESON Chess Problem Database

Problem Display
PID: 232310 (4r3/8/8/1B4Q1/4k3/6p1/6K1/B7 w - - 0 1)

Lincoln, Robert A

Kudesnik, 2001

4r3/8/8/1B4Q1/4k3/6p1/6K1/B7

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qxe5#
    • 1...Ra8
      • 2.Qe5#
    • 1...Rb8
      • 2.Qe5#
    • 1...Rc8
      • 2.Qe5#
    • 1...Rd8
      • 2.Qe5#
    • 1...Rf8
      • 2.Qe5#
    • 1...Rg8
      • 2.Qe5#
    • 1...Rh8
      • 2.Qe5#
  • Tries
    • 1.Qg4+?
      • 1...Ke3
        • 2.Qd4#
      • 1...Kd5!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qf3#
      • 1...Ke3
        • 2.Qd4#
      • 1...Kd5
        • 2.Qc6#
      • 1...Rf8
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(c);N_GUARD::QAR1(D),XR(c)
    • R(c);N_GUARD::QAR1(D)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);OGATE,P-FLIGHT::QAB1(D)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(D);
    • Threat
      • QAB1(D)
    • Vars
      • K(b);P-FLIGHT::QAB1(D)
      • K(b);S_FLIGHT::QAB1(D)
      • R(c);N_GUARD::QAR1(D)
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