MESON Chess Problem Database

Problem Display
PID: 15154 (8/8/k1K5/3pQ3/8/p7/p5p1/8 w - - 0 1)

Speckmann, Werner

Schach aktuell, 1980

8/8/k1K5/3pQ3/8/p7/p5p1/8

#2

2 + 5

3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qxa3#
        • 2.Qb6#
      • 1...Ka5
        • 2.Qxa3#
        • 2.Qb5#
      • 1...Ka7
        • 2.Qb7#
      • 1...a1Q
        • 2.Qb6#
      • 1...a1R
        • 2.Qb6#
      • 1...g1Q
        • 2.Qxa3#
      • 1...g1B
        • 2.Qxa3#
      • 1...axb2!
    • 1.Qd4?
      • threat
        • 2.Qb6#
        • 2.Qa4#
      • 1...g1Q
        • 2.Qa4#
      • 1...g1B
        • 2.Qa4#
      • 1...Ka5!
    • 1.Qe2+?
      • 1...Ka5
        • 2.Qb5#
      • 1...Ka7!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qb6#
        • 2.Qxa3#
      • 1...Ka5
        • 2.Qxa3#
      • 1...d4
        • 2.Qxa3#
      • 1...a1Q
        • 2.Qb6#
      • 1...a1R
        • 2.Qb6#
      • 1...g1Q
        • 2.Qxa3#
      • 1...g1B
        • 2.Qxa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(e);P-FLIGHT::QAR1(A)
        • P(a);::QAR1(A)
        • P(b);::QAR(A),XP(c)
      • Refutation
        • P(c);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR2(A)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR1(A)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(e);P-FLIGHT::QAR2(A),XP(c)
      • P(d);::QAR(A),XP(c)
      • P(a);::QAR1(A)
      • P(b);::QAR(A),XP(c)
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