MESON Chess Problem Database

Problem Display
PID: 285227 (4k2r/R7/p4B1p/8/8/8/8/R3K3 w Qk - 0 1)

Neale, Harry R

The Problemist, 1942

4k2r/R7/p4B1p/8/8/8/8/R3K3

#2

4 + 4

5454 Near Snap 2026
6490 yacpdb 2026

SOLUTION

  • SOUND
  • Tries
    • 1.Rb1?
      • threat
        • 2.Rb8#
      • 1...Kf8
        • 2.Rb8#
      • 1...0-0!
    • 1.Rc1?
      • threat
        • 2.Rc8#
      • 1...Kf8
        • 2.Rc8#
      • 1...0-0!
    • 1.Rd1?
      • threat
        • 2.Rd8#
      • 1...Kf8
        • 2.Rd8#
      • 1...0-0!
  • Keys
    • 1.0-0-0!
      • threat
        • 2.Rd8#
      • 1...Kf8
        • 2.Rd8#
      • 1...0-0
        • 2.Rg1#

Anticipated by 120969(1904), 184883(1908), 72578(1936)

This anticipates 246602(2020)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • K(c);P-FLIGHT::R(A)
      • Refutation
        • K(c);0-0
    • Try
      • R(A);
      • Threat
        • R(A)
      • Vars
        • K(c);P-FLIGHT::R(A)
      • Refutation
        • K(c);0-0
    • Try
      • R(A);
      • Threat
        • R1(A)
      • Vars
        • K(c);P-FLIGHT::R(A)
      • Refutation
        • K(c);0-0
  • Actual
    • K(B);0-0-0
    • Threat
      • R1(A)
    • Vars
      • K(c);P-FLIGHT::R(A)
      • K(c);0-0,OGATEB::R(A)
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