MESON Chess Problem Database

Problem Display
PID: 12410 (8/6B1/8/8/4K2n/3Q4/p2N4/3k4 w - - 0 1)

Speckmann, Werner

Berliner Morgenpost, 1979

8/6B1/8/8/4K2n/3Q4/p2N4/3k4

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Kc1
      • 2.Sb3#
  • Tries
    • 1.Sc4+?
      • 1...Kc1
        • 2.Bb2#
        • 2.Bh6#
      • 1...Ke1!
    • 1.Bb2?
      • threat
        • 2.Sf3#
      • 1...Sf3
        • 2.Sxf3#
      • 1...Ke1!
    • 1.Bc3?
      • threat
        • 2.Sb3#
      • 1...Kc1
        • 2.Sb3#
      • 1...Ke1
        • 2.Qf1#
      • 1...Sf3!
  • Keys
    • 1.Bh6!
      • threat
        • 2.Sf3#
      • 1...Kc1
        • 2.Sc4#
      • 1...Ke1
        • 2.Qf1#
      • 1...Sf3
        • 2.Sxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::S(A)
  • Tries
    • Try
      • S(A);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(D);
      • Threat
        • QAR(B)+S(A)
      • Vars
        • S(c);::QAR(B)+S(A),XS(c)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(D);
      • Threat
        • QAR(B)+S(A)
      • Vars
        • K(a);P-FLIGHT::S(A)
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • S(c);
  • Actual
    • B(D);
    • Threat
      • QAR(B)+S(A)
    • Vars
      • K(a);P-FLIGHT::B(D)+S(A)
      • K(a);P-FLIGHT::QAR1(B)
      • S(c);::QAR(B)+S(A),XS(c)
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