MESON Chess Problem Database

Problem Display
PID: 112798 (1B6/2R5/2K5/3pk3/1Rp5/3Bp3/2Q1P3/8 w - - 0 1)

Anstey, Charles Thomas T

St. John Globe, 1905

1B6/2R5/2K5/3pk3/1Rp5/3Bp3/2Q1P3/8

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qb2#
    • 1...Kf4
      • 2.Rg7#
  • Tries
    • 1.Bf5?
      • 1...Kd4
        • 2.Qb2#
      • 1...Kf4
        • 2.Rg7#
      • 1...c3
        • 2.Rf7#
      • 1...d4
        • 2.Rf7#
      • 1...Kf6!
    • 1.Bg6?
      • 1...Kd4
        • 2.Qb2#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kf6
        • 2.Qf5#
      • 1...c3
        • 2.Qf5#
      • 1...d4
        • 2.Qf5#
      • 1...Kf4!
    • 1.Re7+?
      • 1...Kd4
        • 2.Be5#
        • 2.Ba7#
        • 2.Qb2#
      • 1...Kf6!
    • 1.Rf7+?
      • 1...Kd4
        • 2.Rf4#
        • 2.Qb2#
      • 1...Ke6!
  • Keys
    • 1.Bh7!
      • 1...Kd4
        • 2.Qb2#
      • 1...Kf4
        • 2.Rg7#
      • 1...Ke6
        • 2.Qf5#
      • 1...Kf6
        • 2.Qf5#
      • 1...c3
        • 2.Qf5#
      • 1...d4
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(d);P_SPINP(b),S_FLIGHT::QAB(A)
    • K(d);P_SPINP(b),S_FLIGHT::B(G)+R(F)
  • Tries
    • Try
      • B(C);
      • Vars
        • K(d);P_SPINP(b),S_FLIGHT::QAB(A)
        • K(d);P_SPINP(b),S_FLIGHT::B(G)+R(F)
        • P(b);::B(G)+R(F)
        • P(c);SBLOCK::B(G)+R(F)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • B(C);
      • Vars
        • K(d);P_SPINP(b),S_FLIGHT::QAB(A)
        • K(d);P-FLIGHT::QAB1(A)
        • K(d);S_FLIGHT::QAR1(A)
        • P(b);::QAR1(A)
        • P(c);SBLOCK::QAR1(A)
      • Refutation
        • K(d);P_SPINP(b),S_FLIGHT
    • Try
      • R(F);CHECK
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(F);CHECK
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • B(C);
    • Vars
      • K(d);P_SPINP(b),S_FLIGHT::QAB(A)
      • K(d);P_SPINP(b),S_FLIGHT::B(G)+R(F)
      • K(d);P-FLIGHT::QAB1(A)
      • K(d);S_FLIGHT::QAR1(A)
      • P(b);::QAR1(A)
      • P(c);SBLOCK::QAR1(A)
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