MESON Chess Problem Database

Problem Display
PID: 37526 (4B1N1/4b1n1/KQ4r1/1p5k/3n3P/7P/4p1N1/1bB5 w - - 0 1)

Machler, Emil

Neue Zurcher Zeitung, 1975

4B1N1/4b1n1/KQ4r1/1p5k/3n3P/7P/4p1N1/1bB5

#2

8 + 8

3690 Kunstschach in der Schweiz 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Bxg6#
      • 2.Qxg6#
    • 1...Ba3
      • 2.Sf6#
    • 1...Bb4
      • 2.Sf6#
    • 1...Bc5
      • 2.Sf6#
    • 1...Bd6
      • 2.Sf6#
    • 1...Bf6
      • 2.Sxf6#
    • 1...Bf8
      • 2.Sf6#
    • 1...Sc2
      • 2.Bxg6#
      • 2.Qxg6#
    • 1...Sdf5
      • 2.Bxg6#
      • 2.Qxg6#
    • 1...Sgf5
      • 2.Bxg6#
      • 2.Qxg6#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Sf4#
      • 1...Bxf6
        • 2.Sxf6#
      • 1...Bd6
        • 2.Qg5#
      • 1...Sde6
        • 2.Qf3#
      • 1...Sge6
        • 2.Qh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(g);N_GUARD::S(H)
    • B(g);N_GUARD,N_PINQ(F)::S(H)
    • B(g);N_GUARD,N_PINQ(F)::S(H),XB(g)
  • Actual
    • Q(F);
    • Threat
      • S(B)
    • Vars
      • B(g);XQ(F)::S(H),XB(g)
      • B(g);N_PINQ(F)::QAR1(F)
      • S(c);N_PINQ(F)::QAB(F)
      • S(h);N_PINQ(F)::QAR(F)
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