MESON Chess Problem Database

Problem Display
PID: 119982 (5N2/8/7K/4kp2/2Q4B/8/4n3/8 w - - 0 1)

Decker, Adolfph L

Deutsches Wochenschach, 1909

5N2/8/7K/4kp2/2Q4B/8/4n3/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Bf6+?
      • 1...Kxf6
        • 2.Qe6#
      • 1...Kd6!
  • Keys
    • 1.Bf2!
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Qe6#
      • 1...Sd4
        • 2.Qxd4#
      • 1...f4
        • 2.Qe6#
      • 1...Sc1
        • 2.Qd4#
      • 1...Sg1
        • 2.Qd4#
      • 1...Sc3
        • 2.Qd4#
      • 1...Sg3
        • 2.Qd4#
      • 1...Sf4
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(b);S_FLIGHT,XB(B)::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(b);S_FLIGHT::QAB1(A)
      • K(b);S_FLIGHT::QAR1(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • P(c);SBLOCK::QAR1(A)
      • S(a);N_GUARD::QAB1(A)
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