MESON Chess Problem Database

Problem Display
PID: 55539 (8/8/5K2/8/4k2N/8/1n1Q4/5B1b w - - 0 1)

Zimmer, Eligiusz

Probleemblad, 2004

8/8/5K2/8/4k2N/8/1n1Q4/5B1b

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Bxg2#
  • Tries
    • 1.Sg6?
      • 1...Kf3
        • 2.Qf4#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Bg2
        • 2.Bxg2#
      • 1...Sd1
        • 2.Qd3#
      • 1...Sa4
        • 2.Qd3#
      • 1...Sc4
        • 2.Qd3#
      • 1...Bf3!
  • Keys
    • 1.Sg2!
      • 1...Kf3
        • 2.Qf4#
      • 1...Bxg2
        • 2.Bxg2#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Sd1
        • 2.Qd3#
      • 1...Sa4
        • 2.Qd3#
      • 1...Sc4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::B(A),XB(a)
  • Tries
    • Try
      • S(C);
      • Vars
        • K(c);S_FLIGHT::QAR1(B)
        • S(b);N_GUARD::QAB1(B),XS(b)
        • B(a);N_GUARD::B(A),XB(a)
        • S(b);N_GUARD::QAB1(B)
      • Refutation
        • B(a);
  • Actual
    • S(C);
    • Vars
      • K(c);S_FLIGHT::QAR1(B)
      • B(a);OGATE,XS(C)::B(A),XB(a)
      • S(b);N_GUARD::QAB1(B),XS(b)
      • S(b);N_GUARD::QAB1(B)
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