MESON Chess Problem Database

Problem Display
PID: 122968 (1nN5/1P1p4/B1p5/k1N2Q2/3R4/8/1P1bn3/K2b4 w - - 0 1)

Dunka, Gyorgy Jusztin

Deutsches Wochenschach, 1912

1nN5/1P1p4/B1p5/k1N2Q2/3R4/8/1P1bn3/K2b4

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ba4
      • 2.Rxa4#
    • 1...Bc1
      • 2.b4#
    • 1...Be3
      • 2.b4#
    • 1...Bf4
      • 2.b4#
    • 1...Bg5
      • 2.b4#
    • 1...Bh6
      • 2.b4#
    • 1...Sc3
      • 2.b4#
    • 1...Sxa6
      • 2.Sb3#
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qd8#
      • 1...Bxg5
        • 2.b4#
      • 1...Sxd4
        • 2.Qxd2#
      • 1...Sxa6
        • 2.Sb3#
      • 1...Bf4
        • 2.b4#

There are these versions: 189837

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • B(a);N_GUARD::R1(C),XB(a)
    • B(b);N_GUARD::P(B)
    • S(c);S_CUTB(b)::P(B)
    • S(g);SBLOCK,XB(F)::QAR(E)+S(D),DCHECK
  • Actual
    • Q(E);
    • Threat
      • QAB(E)
    • Vars
      • B(b);N_GUARD,XQ(E)::P(B)
      • S(c);N_GUARD,XR(C)::QAB(E),XB(b)
      • S(g);SBLOCK,XB(F)::QAR(E)+S(D),DCHECK
      • B(b);N_GUARD::P(B)
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