MESON Chess Problem Database

Problem Display
PID: 72578 (4k2r/7p/5B2/4N3/2p5/8/b1P5/R3K3 w Qk - 0 1)

van Dijk, Johannes

Tijdschrift vd KNSB, 1936

4k2r/7p/5B2/4N3/2p5/8/b1P5/R3K3

#2

5 + 5

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Ra8#
    • 1...Bb3
      • 2.Ra8#
  • Tries
    • 1.Rd1?
      • threat
        • 2.Rd8#
      • 1...Kf8
        • 2.Rd8#
      • 1...0-0!
    • 1.Rxa2?
      • threat
        • 2.Ra8#
      • 1...Kf8
        • 2.Ra8#
      • 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)

FEATURES

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