MESON Chess Problem Database

Problem Display
PID: 220498 (5B2/2n5/4kp2/R1PRPp1K/5p2/5P2/B7/8 w - - 0 1)

Hopkins, EL

The Field, 1885

(First published on Sat Aug 29 1885)

5B2/2n5/4kp2/R1PRPp1K/5p2/5P2/B7/8

#2

8 + 5

4817 English Mechanic and World of Science 1887
15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...fxe5
      • 2.Rd6#
  • Tries
    • 1.Rd1+?
      • 1...Kxe5
        • 2.Bd6#
      • 1...Sd5!
    • 1.Rd2+?
      • 1...Kxe5
        • 2.Bd6#
      • 1...Sd5!
    • 1.Rd3+?
      • 1...Kxe5
        • 2.Bd6#
      • 1...Sd5!
  • Keys
    • 1.Ra7!
      • 1...Kf7
        • 2.Rd8#
      • 1...Sxd5
        • 2.Re7#
      • 1...fxe5
        • 2.Rd6#
      • 1...Sb5
        • 2.Re7#
      • 1...Sa6
        • 2.Re7#
      • 1...Sa8
        • 2.Re7#
      • 1...Se8
        • 2.Re7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(d);SBLOCK,XP(F)::B(A)+R(E),DCHECK
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(F)::B(H)
      • Refutation
        • S(e);P_SPINS(e)
    • Try
      • R(E);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(F)::B(H)
      • Refutation
        • S(e);P_SPINS(e)
    • Try
      • R(E);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(F)::B(H)
      • Refutation
        • S(e);P_SPINS(e)
  • Actual
    • R(C);
    • Vars
      • K(c);P_SPINS(e),S_FLIGHT::B(A)+R(E)
      • S(e);OGATE,P_SPINS(e),XR(E)::R1(C)
      • P(d);SBLOCK,XP(F)::B(A)+R(E),DCHECK
      • S(e);OGATE::R1(C)
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