MESON Chess Problem Database

Problem Display
PID: 181107 (3r4/1Q6/1K1prpN1/3P4/3Bk3/1N5B/2P1nP2/7n w - - 0 1)

Johner, Hans

Johner, Paul Ferdinand

Kleine Presse, 1904

3r4/1Q6/1K1prpN1/3P4/3Bk3/1N5B/2P1nP2/7n

#2

9 + 7

16442 Deutsche Allgemeine Zeitung 1922
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kf3
      • 2.Sd2#
    • 1...Sxd4
      • 2.Sd2#
    • 1...f5
      • 2.Bg2#
  • Tries
    • 1.Be3?
      • threat
        • 2.Sd2#
      • 1...Kf3
        • 2.Sd2#
      • 1...Sxf2!
  • Keys
    • 1.Bc5!
      • threat
        • 2.Sd2#
      • 1...dxc5+
        • 2.d6#
      • 1...Kf3
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • K(c);S_FLIGHT::S(C)
    • S(b);SBLOCK,XB(E)::S(C)
    • P(f);SBLOCK::B(D)
  • Tries
    • Try
      • B(E);
      • Threat
        • S(C)
      • Vars
        • K(c);S_FLIGHT::S(C)
      • Refutation
        • S(a);XP(B)
  • Actual
    • B(E);
    • Threat
      • S(C)
    • Vars
      • P(d);CHECK,OGATE,XB(E)::QAB(I)+P(F)
      • K(c);S_FLIGHT::S(C)
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