MESON Chess Problem Database

Problem Display
PID: 158163 (2B5/2B5/8/2Q5/8/5k2/2K5/7b w - - 0 1)

Daniel, Arthur William

British Chess Magazine 13. Ty., 1906-1907

2B5/2B5/8/2Q5/8/5k2/2K5/7b

#2

4 + 2

3713 Snap 2016
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Bb7#
  • Tries
    • 1.Kd2?
      • 1...Ke4
        • 2.Bb7#
      • 1...Bg2
        • 2.Qe3#
        • 2.Qf5#
      • 1...Kg2!
    • 1.Kd3?
      • 1...Bg2
        • 2.Qe3#
        • 2.Qf8#
        • 2.Qf5#
      • 1...Kg2!
    • 1.Qf2+?
      • 1...Ke4
        • 2.Bb7#
      • 1...Kxf2!
    • 1.Qe3+?
      • 1...Kg2
        • 2.Bh3#
      • 1...Kxe3!
  • Keys
    • 1.Bb6!
      • 1...Ke2
        • 2.Qf2#
      • 1...Kg2
        • 2.Qf2#
      • 1...Kg3
        • 2.Qf2#
      • 1...Ke4
        • 2.Qf5#
      • 1...Kf4
        • 2.Qe3#
      • 1...Bg2
        • 2.Qe3#

Anticipated by 120128(1904)

This anticipates 146413(1920)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::B(D)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::B(D)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::B(D)
      • Refutation
        • K(b);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);S_FLIGHT::B(D)
      • Refutation
        • K(b);P-FLIGHT,XQ(B)
  • Actual
    • B(C);
    • Vars
      • K(b);S_FLIGHT::QAR1(B)
      • K(b);P-FLIGHT::QAB1(B)
      • K(b);S_FLIGHT::QAB1(B)
      • B(a);SBLOCK::QAR1(B)
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