MESON Chess Problem Database

Problem Display
PID: 142861 (2n5/2p1p3/1pP1kpP1/1R1n4/4Pb2/QN1Rp2K/B7/Bb6 w - - 0 1)

Hjelle, David

1st Prize, Problemisten 03. TT (B), 1945-1946

2n5/2p1p3/1pP1kpP1/1R1n4/4Pb2/QN1Rp2K/B7/Bb6

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Sd4#
    • 1...Sb4
      • 2.Sc5#
    • 1...f5
      • 2.exd5#
  • Tries
    • 1.Rbxd5?
      • threat
        • 2.Sd4#
      • 1...f5
        • 2.exf5#
      • 1...Be5!
    • 1.Qc5?
      • threat
        • 2.Qxd5#
      • 1...Sc3
        • 2.Sd4#
        • 2.Qf5#
      • 1...Sb4
        • 2.Sd4#
        • 2.Qf5#
      • 1...bxc5!
  • Keys
    • 1.Kg4!
      • threat
        • 2.exd5#
      • 1...f5+
        • 2.exf5#
      • 1...Sc3
        • 2.Sd4#
      • 1...Sb4
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(d);::B(B)+S(D),DCHECK
    • P(g);SBLOCK::P(G),XS(d)
  • Tries
    • Try
      • R(H);XS(d)
      • Threat
        • S(D)
      • Vars
        • P(g);OGATE::P(G),XP(g)
      • Refutation
        • B(c);
    • Try
      • Q(C);
      • Threat
        • QAB1(C),XS(d)
      • Refutation
        • P(e);XQ(C)
  • Actual
    • K(F);S_FLIGHT
    • Threat
      • P(G),XS(d)
    • Vars
      • P(g);CHECK,OGATE::P(G),XP(g)
      • S(d);::B(B)+S(D),DCHECK
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