MESON Chess Problem Database

Problem Display
PID: 216138 (8/8/1Q6/BKR5/1R6/3N1p1B/4k2P/8 w - - 0 1)

Vandemeulebroucke, Ignaas

Probleemblad, 1980

8/8/1Q6/BKR5/1R6/3N1p1B/4k2P/8

#2

8 + 2

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rd4?
      • 1...Kd1
        • 2.Sc1#
        • 2.Sf4#
      • 1...Ke3
        • 2.Re5#
      • 1...f2!
    • 1.Re4+?
      • 1...Kd1
        • 2.Sb2#
        • 2.Sf2#
        • 2.Re1#
        • 2.Rc1#
      • 1...Kxd3!
    • 1.Rc2+?
      • 1...Kxd3
        • 2.Bf5#
      • 1...Kd1!
  • Keys
    • 1.Sf2!
      • 1...Ke1
        • 2.Rb2#
      • 1...Kd2
        • 2.Re4#
      • 1...Kxf2
        • 2.Re5#
      • 1...Ke3
        • 2.Rc2#

This anticipates 7474(1990), 35815(1991-1992)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);
      • Vars
        • K(a);P-FLIGHT::R(G)
      • Refutation
        • P(b);
    • Try
      • R(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XS(B)
    • Try
      • R(G);CHECK
      • Vars
        • K(a);S_FLIGHT,XS(B)::B(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(a);P-FLIGHT::B(E)+R(D)
      • K(a);P-FLIGHT,XS(B)::QAB(H)+R(G)
      • K(a);P-FLIGHT::QAB(H)+R(G)
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