MESON Chess Problem Database

Problem Display
PID: 174762 (8/4N3/1P1P4/4kPN1/1P5K/3P3B/3P1p2/5Q2 w - - 0 1)

Dittmann, Dr Wolfgang

Zajic, Helmut

Die Schwalbe, 1977

8/4N3/1P1P4/4kPN1/1P5K/3P3B/3P1p2/5Q2

#2

11 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Sf3#
    • 1...Kf4
      • 2.Sg6#
    • 1...Kf6
      • 2.Qa1#
  • Tries
    • 1.Kg4?
      • 1...Kd4
        • 2.Sf3#
      • 1...Kf6
        • 2.Qa1#
      • 1...Kxd6!
    • 1.Bg4?
      • 1...Kd4
        • 2.Sf3#
      • 1...Kf4
        • 2.Sg6#
      • 1...Kf6
        • 2.Qa1#
      • 1...Kxd6!
    • 1.Qe2+?
      • 1...Kd4
        • 2.Sf3#
        • 2.Se6#
        • 2.Qe3#
        • 2.Qe4#
      • 1...Kf4
        • 2.Se6#
        • 2.Sd5#
        • 2.Sg6#
        • 2.Qe3#
        • 2.Qe4#
      • 1...Kxd6
        • 2.Qe6#
      • 1...Kf6!
    • 1.Qa1+?
      • 1...Kf4
        • 2.Sd5#
        • 2.Sg6#
        • 2.Qd4#
      • 1...Kxd6!
    • 1.Qxf2?
      • 1...Kf6
        • 2.Qd4#
      • 1...Kxd6!
    • 1.b7?
      • 1...Kd4
        • 2.Sf3#
      • 1...Kf4
        • 2.Sg6#
      • 1...Kf6
        • 2.Qa1#
      • 1...Kxd6!
  • Keys
    • 1.f6!
      • 1...Kd4
        • 2.Sf3#
      • 1...Kf4
        • 2.Sg6#
      • 1...Kxd6
        • 2.Sf7#
      • 1...Kxf6
        • 2.Qa1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::S(H)
    • K(b);P_SPINP(a),S_FLIGHT::S(K)
    • K(b);S_FLIGHT::QAB(A)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(b);S_FLIGHT::S(H)
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT,XP(J)
    • Try
      • B(D);
      • Vars
        • K(b);S_FLIGHT::S(H)
        • K(b);P_SPINP(a),S_FLIGHT::S(K)
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT,XP(J)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XP(J)::QAR1(A)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT,XP(J)
    • Try
      • Q(A);XP(a)
      • Vars
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT,XP(J)
    • Try
      • P(I);
      • Vars
        • K(b);S_FLIGHT::S(H)
        • K(b);P_SPINP(a),S_FLIGHT::S(K)
        • K(b);S_FLIGHT::QAB(A)
      • Refutation
        • K(b);S_FLIGHT,XP(J)
  • Actual
    • P(G);
    • Vars
      • K(b);S_FLIGHT::S(H)
      • K(b);P_SPINP(a),S_FLIGHT::S(K)
      • K(b);S_FLIGHT,XP(J)::S(H)
      • K(b);P_SPINP(a),S_FLIGHT,XP(G)::QAB(A)
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