MESON Chess Problem Database

Problem Display
PID: 158371 (3N3K/8/R2P1P2/2Npk3/8/3B4/3B4/8 w - - 0 1)

Norlin, Adolf

Tidskrift for Schack, 1907

3N3K/8/R2P1P2/2Npk3/8/3B4/3B4/8

#2

8 + 2

15148 Sadier Collection 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf6
      • 2.Sd7#
  • Tries
    • 1.Be3?
      • threat
        • 2.Sd7#
      • 1...Kxf6
        • 2.Sd7#
      • 1...d4!
  • Keys
    • 1.Ra5!
      • 1...Kd4
        • 2.Sc6#
      • 1...Kxd6
        • 2.Bf4#
      • 1...Kxf6
        • 2.Sd7#
      • 1...d4
        • 2.Se4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT,XP(F)::S(C)
  • Tries
    • Try
      • B(A);
      • Threat
        • S(C)
      • Vars
        • K(b);S_FLIGHT,XP(F)::S(C)
      • Refutation
        • P(a);
  • Actual
    • R(D);
    • Vars
      • K(b);S_FLIGHT::S(G)
      • K(b);S_FLIGHT,XP(E)::B(A)
      • K(b);S_FLIGHT,XP(F)::S(C)
      • P(a);SBLOCK::R(D)+S(C)
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