MESON Chess Problem Database

Problem Display
PID: 107104 (8/4K3/1pp5/2kP4/1p2Pp2/5P2/4B3/3QR3 w - - 0 1)

Paslack, Rainer

Landeszeitung, 1968

8/4K3/1pp5/2kP4/1p2Pp2/5P2/4B3/3QR3

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...cxd5
      • 2.Qxd5#
  • Tries
    • 1.Rh1?
      • threat
        • 2.Qg1#
      • 1...cxd5
        • 2.Qxd5#
      • 1...b3!
    • 1.Qd3?
      • threat
        • 2.Rc1#
        • 2.Qc4#
      • 1...cxd5
        • 2.Rc1#
        • 2.Qxd5#
      • 1...b3
        • 2.Qc4#
        • 2.Qc3#
      • 1...b5!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Rc1#
      • 1...b3
        • 2.Qc3#
      • 1...b5
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • P(e);OGATE,XP(F)::QAR1(A),XP(e)
  • Tries
    • Try
      • R(B);
      • Threat
        • QAB(A)
      • Vars
        • P(e);OGATE,XP(F)::QAR1(A),XP(e)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • P(d);
  • Actual
    • Q(A);
    • Threat
      • R(B)
    • Vars
      • P(a);N_GUARD::QAR2(A)
      • P(d);OGATEB::QAB(A)
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