MESON Chess Problem Database

Problem Display
PID: 233919 (2K5/6B1/3PR1NQ/2p5/4n1R1/N1pk2pB/3ppp2/4bn2 w - - 0 1)

Larsen, Lars Aksglade (= Aksglade, Lars)

Skakbladet, 1942

2K5/6B1/3PR1NQ/2p5/4n1R1/N1pk2pB/3ppp2/4bn2

#2

9 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Se3
      • 2.Sf4#
    • 1...Sg5
      • 2.Sf4#
    • 1...Sxd6+
      • 2.Rxd6#
    • 1...Sf6
      • 2.Se5#
  • Tries
    • 1.Rxg3+?
      • 1...Se3
        • 2.Sf4#
        • 2.Rxe3#
        • 2.Qxe3#
      • 1...Sexg3
        • 2.Sf4#
      • 1...Sfxg3!
    • 1.Qe3+?
      • 1...Sxe3
        • 2.Sf4#
      • 1...Kxe3!
  • Keys
    • 1.Bg2!
      • threat
        • 2.Bxe4#
      • 1...Sxd6+
        • 2.Rxd6#
      • 1...Sg5
        • 2.Sf4#
      • 1...Sf6
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • S(b);SBLOCK::S(F)
    • S(i);::S(F)
    • S(i);CHECK,OGATE,XP(D)::R(E),XS(i)
  • Tries
    • Try
      • R(C);CHECK,XP(h)
      • Vars
        • S(i);XR(C)::S(F)
      • Refutation
        • S(b);XR(C)
    • Try
      • Q(G);CHECK
      • Vars
        • S(b);SBLOCK,XQ(G)::S(F)
      • Refutation
        • K(g);P-FLIGHT,P_SPINS(i),XQ(G)
  • Actual
    • B(B);
    • Threat
      • B(B),XS(i)
    • Vars
      • S(i);CHECK,OGATE,XP(D)::R(E),XS(i)
      • S(i);::S(F)
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