MESON Chess Problem Database

Problem Display
PID: 202324 (4B2R/4b1K1/4N1PN/4p2k/8/5nP1/8/8 w - - 0 1)

Lindgren, Frithiof

Tidskrift for Schack, 1923

4B2R/4b1K1/4N1PN/4p2k/8/5nP1/8/8

#2

7 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.g4#
    • 1...Sh4
      • 2.g4#
  • Tries
    • 1.Kh7?
      • threat
        • 2.g7#
      • 1...Sh4
        • 2.g4#
      • 1...Sg5+!
  • Keys
    • 1.Kg8!
      • threat
        • 2.g7#
      • 1...Sh4
        • 2.g4#
      • 1...Sg5
        • 2.Sg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(d);SBLOCK::P(A)
    • S(a);SBLOCK::P(A)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • B(F)+P(C)
      • Vars
        • S(a);SBLOCK::P(A)
      • Refutation
        • S(a);CHECK
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • B(F)+P(C)
    • Vars
      • S(a);SBLOCK::P(A)
      • S(a);SBLOCK::S(B)
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