MESON Chess Problem Database

Problem Display
PID: 207213 (5R1K/4kp2/2R2p2/3PN3/B4P2/8/8/8 w - - 0 1)

Anonymous

The Chess Players' Quarterly Chronicle, 1868

5R1K/4kp2/2R2p2/3PN3/B4P2/8/8/8

#2

7 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Re6+?
      • 1...Kxf8
        • 2.Sd7#
        • 2.Re8#
      • 1...fxe6!
    • 1.Rc7+?
      • 1...Kxf8
        • 2.Rxf7#
      • 1...Kd6!
    • 1.Rxf7+?
      • 1...Ke8
        • 2.Rd6#
        • 2.Rc8#
      • 1...Kd8!
    • 1.d6+?
      • 1...Kxf8
        • 2.Rc8#
      • 1...Ke6!
  • Keys
    • 1.Rxf6!
      • 1...Kxf6
        • 2.Rxf7#
      • 1...Kxf8
        • 2.Sg6#
        • 2.Rxf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Refutation
        • P(c);XR(E)
    • Try
      • R(E);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XR(F)::R1(E),XP(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(F);CHECK,XP(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(F)::R(E)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • R(E);XP(a)
    • Vars
      • K(b);P_SPINP(c),S_FLIGHT,XR(E)::R1(F),XP(c)
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