MESON Chess Problem Database

Problem Display
PID: 237016 (4K3/8/4p3/3Pk1P1/2R2N2/4pP2/4P2B/8 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Schakend Nederland, 1971

4K3/8/4p3/3Pk1P1/2R2N2/4pP2/4P2B/8

#2

8 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sg2+?
      • 1...Kxd5
        • 2.Sxe3#
      • 1...Kf5!
    • 1.dxe6?
      • 1...Kf5
        • 2.Rc5#
      • 1...Kd6!
  • Keys
    • 1.Rc5!
      • 1...Kd4
        • 2.Sxe6#
      • 1...Kf5
        • 2.dxe6#
      • 1...Kd6
        • 2.Sxe6#
      • 1...exd5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(F)::S(E),XP(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • P(F);XP(c)
      • Vars
        • K(b);P-FLIGHT::R(D)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(b);S_FLIGHT::S(E),XP(c)
      • K(b);P-FLIGHT::R(D)+P(F),XP(c)
      • K(b);S_FLIGHT::B(B)+S(E),XP(c)
      • P(c);OGATE,P_SPINP(c),XP(F)::R1(D),XP(c)
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