MESON Chess Problem Database

Problem Display
PID: 102171 (8/8/2N5/4N3/4k3/6R1/B4RK1/8 w - - 0 1)

Pettersen, Otvind

Svenska Dagbladet, 1956

8/8/2N5/4N3/4k3/6R1/B4RK1/8

#2

6 + 1

6490 yacpdb 2009
3713 Snap 2018

SOLUTION

  • SOUND
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sd2#
        • 2.Sg5#
      • 1...Kd3
        • 2.Sg5#
      • 1...Ke3
        • 2.Sd2#
        • 2.Sg5#
      • 1...Kf4
        • 2.Sd2#
        • 2.Sg5#
      • 1...Kf5
        • 2.Sd2#

Anticipated by 179592(1917)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(E);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);S_FLIGHT::R(D)+S(E)
      • K(a);S_FLIGHT::R(B)+S(E)
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