MESON Chess Problem Database

Problem Display
PID: 181798 (1r1N2n1/R2PP2Q/1p1k4/5PB1/2P5/3K2p1/7b/8 w - - 0 1)

Koetsheid, Petrus Albertus

Barmer Schachverein, 1905

1r1N2n1/R2PP2Q/1p1k4/5PB1/2P5/3K2p1/7b/8

#2

9 + 6

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Sf7#
    • 1...Sxe7
      • 2.Qxe7#
  • Tries
    • 1.e8S+?
      • 1...Ke5
        • 2.Sc6#
        • 2.Sf7#
      • 1...Kc5!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Bf4#
      • 1...Ke5
        • 2.Sf7#
      • 1...Kxc7
        • 2.e8S#
      • 1...g2
        • 2.Qxh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(d);S_FLIGHT::S(I)
    • S(f);OGATE,XP(G)::QAB1(H),XS(f)
  • Tries
    • Try
      • P(G);CHECK
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • R(E);
    • Threat
      • B(D)
    • Vars
      • K(d);S_FLIGHT::S(I)
      • K(d);S_FLIGHT,XR(E)::P=S
      • P(b);OGATEB::QAB(H),XB(a)
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