MESON Chess Problem Database

Problem Display
PID: 158655 (5r2/8/6Q1/2p1k3/2P5/BP6/5P2/3RK3 w - - 0 1)

Pape, Edouard

British Chess Magazine 13. Ty., 1906-1907

5r2/8/6Q1/2p1k3/2P5/BP6/5P2/3RK3

#2

7 + 3

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.Rd5#
  • Tries
    • 1.f4+?
      • 1...Rxf4
        • 2.Rd5#
      • 1...Kxf4!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Re4#
      • 1...Kxd4
        • 2.Bb2#
      • 1...cxd4
        • 2.Bd6#
      • 1...Rf6
        • 2.Qe4#
      • 1...Rf4
        • 2.Rd5#
      • 1...Rf5
        • 2.Qd6#

Anticipated by 23426(1886)

This anticipates 93234(1907), 107876(1963)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK::R1(A)
  • Tries
    • Try
      • P(C);CHECK
      • Vars
        • R(c);SBLOCK,XP(C)::R1(A)
      • Refutation
        • K(b);S_FLIGHT,XP(C)
  • Actual
    • R(A);
    • Threat
      • R1(A)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(A)::B(D)
      • P(a);OGATE,SBLOCK,XR(A)::B(D)
      • R(c);SBLOCK::QAR1(G)
      • R(c);SBLOCK::R1(A)
      • R(c);SBLOCK::QAB1(G)
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