MESON Chess Problem Database

Problem Display
PID: 85694 (8/k1KQ4/8/1p6/8/2p2pp1/6q1/1r6 w - - 0 1)

Speckmann, Werner

Heidelberger Tageblatt, 1967

8/k1KQ4/8/1p6/8/2p2pp1/6q1/1r6

#2

2 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...b4
      • 2.Qa4#
  • Tries
    • 1.Kc6+?
      • 1...Ka8
        • 2.Qb7#
      • 1...Kb8
        • 2.Qb7#
      • 1...Ka6!
    • 1.Qd4+?
      • 1...Ka6
        • 2.Qb6#
      • 1...Ka8!
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qb7#
      • 1...Ka6
        • 2.Qa8#
      • 1...f2
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(f);OGATE::QAR(B)
  • Tries
    • Try
      • K(A);CHECK,P-FLIGHT
      • Vars
        • K(g);P-FLIGHT::QAB1(B)
        • K(g);S_FLIGHT::QAR1(B)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(g);P-FLIGHT::QAR1(B)
      • Refutation
        • K(g);P-FLIGHT
  • Actual
    • Q(B);
    • Threat
      • QAR1(B)
    • Vars
      • K(g);P-FLIGHT::QAR2(B)
      • P(d);S_CUTQ(b)::QAR(B)
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