MESON Chess Problem Database

Problem Display
PID: 121003 (8/5K2/8/8/1R2Bk2/8/2Q5/8 w - - 0 1)

Anonymous

Source?, 0000

8/5K2/8/8/1R2Bk2/8/2Q5/8

#2

4 + 1

3713 Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qh2#
      • 2.Qc7#
  • Tries
    • 1.Bg2+?
      • 1...Ke3
        • 2.Re4#
      • 1...Ke5
        • 2.Qc5#
      • 1...Kg5
        • 2.Qg6#
      • 1...Kg3!
    • 1.Bf3+?
      • 1...Ke3
        • 2.Qe2#
      • 1...Kg3
        • 2.Qg2#
      • 1...Ke5
        • 2.Qc5#
      • 1...Kg5
        • 2.Qg6#
      • 1...Kxf3!
    • 1.Bc6+?
      • 1...Kg3
        • 2.Qg2#
      • 1...Ke5
        • 2.Qc5#
      • 1...Kg5
        • 2.Qg6#
      • 1...Ke3!
    • 1.Bb7+?
      • 1...Kg3
        • 2.Qg2#
      • 1...Ke5
        • 2.Qc5#
      • 1...Kg5
        • 2.Qg6#
      • 1...Ke3!
    • 1.Ba8+?
      • 1...Kg3
        • 2.Qg2#
      • 1...Ke5
        • 2.Qc5#
      • 1...Kg5
        • 2.Qg6#
      • 1...Ke3!
    • 1.Qg2?
      • 1...Ke5
        • 2.Qh2#
        • 2.Qg3#
      • 1...Ke3!
  • Keys
    • 1.Bh1+!
      • 1...Ke3
        • 2.Re4#
      • 1...Kg3
        • 2.Qg2#
      • 1...Ke5
        • 2.Qc5#
      • 1...Kg5
        • 2.Qg6#

This anticipates 18240(1954)

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(B)
        • K(a);S_FLIGHT::QAR2(A)
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P-FLIGHT,XB(C)
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(C);CHECK
    • Vars
      • K(a);S_FLIGHT::R1(B)
      • K(a);S_FLIGHT::QAR1(A)
      • K(a);S_FLIGHT::QAR2(A)
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