MESON Chess Problem Database

Problem Display
PID: 252994 (8/2Q1N2P/5n2/8/3k4/6N1/4K3/8 w - - 0 1)

Tryssesoone, Louis

Probleemblad, 1983

8/2Q1N2P/5n2/8/3k4/6N1/4K3/8

#2

5 + 2

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Sgf5#
    • 1...Sd5
      • 2.Sef5#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Qc3#
      • 1...Sd5
        • 2.Sef5#
      • 1...Se4+!
  • Keys
    • 1.h8R!
      • 1...Se4
        • 2.Sgf5#
      • 1...Sg4
        • 2.Rd8#
      • 1...Sd5
        • 2.Sef5#
      • 1...Sh5
        • 2.Rd8#
      • 1...Sd7
        • 2.Rh4#
      • 1...Sh7
        • 2.Rd8#
      • 1...Se8
        • 2.Rh4#
      • 1...Sg8
        • 2.Rh4#

Anticipated by 21725(1920), 17916(1951), 74082(1954), 18405(1955), 180227(1969)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::S(B)
    • S(b);SBLOCK::S(D)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • QAB1(C)
      • Vars
        • S(b);SBLOCK::S(D)
      • Refutation
        • S(b);CHECK
  • Actual
    • P(E);
    • Vars
      • S(b);SBLOCK::S(B)
      • S(b);N_GUARD::R(E)
      • S(b);SBLOCK::S(D)
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