MESON Chess Problem Database

Problem Display
PID: 15147 (8/8/7B/5Q2/3kN3/1K6/4p3/3n4 w - - 0 1)

Speckmann, Werner

Rochade, 1980

8/8/7B/5Q2/3kN3/1K6/4p3/3n4

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qd5#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Sxe2#
        • 2.Sb5#
        • 2.Qd5#
      • 1...e1Q
        • 2.Sb5#
        • 2.Qd5#
      • 1...e1S
        • 2.Se2#
        • 2.Sb5#
        • 2.Qd5#
      • 1...e1B
        • 2.Se2#
        • 2.Sb5#
        • 2.Qd5#
      • 1...e1R
        • 2.Sb5#
        • 2.Qd5#
      • 1...Se3
        • 2.Sxe2#
        • 2.Sb5#
        • 2.Bg7#
      • 1...Sxc3!
    • 1.Qc5+?
      • 1...Kd3
        • 2.Qc4#
        • 2.Qd5#
      • 1...Kxe4!
    • 1.Qe5+?
      • 1...Kd3
        • 2.Sc5#
        • 2.Qd5#
      • 1...Kxe5!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Sf3#
        • 2.Se6#
      • 1...Ke3
        • 2.Se6#
      • 1...e1Q
        • 2.Sf3#
      • 1...e1S
        • 2.Se6#
      • 1...e1R
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • K(c);P-FLIGHT::QAR2(C)
  • Tries
    • Try
      • S(B);
      • Threat
        • DUALS(3)
      • Refutation
        • S(a);XS(B)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);P-FLIGHT,XS(B)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);S_FLIGHT,XQ(C)
  • Actual
    • S(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);S_FLIGHT::B(D)+S(B)
      • P(b);::S(B)
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