MESON Chess Problem Database

Problem Display
PID: 249652 (2B5/2B2p1q/2K2p1p/p1Pp4/3k2N1/1Q2p3/8/8 w - - 0 1)

Pachl, Franz

Comm., Schach, 1986

2B5/2B2p1q/2K2p1p/p1Pp4/3k2N1/1Q2p3/8/8

#2

6 + 8

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qxd5#
      • 2.Qxe3#
  • Tries
    • 1.Bxa5?
      • threat
        • 2.Qxd5#
      • 1...Ke4
        • 2.Qxe3#
      • 1...Qe4
        • 2.Qc3#
      • 1...Qf5!
    • 1.Be5+?
      • 1...Ke4
        • 2.Qxd5#
        • 2.Qxe3#
      • 1...fxe5!
    • 1.Qc3+?
      • 1...Ke4
        • 2.Qxe3#
      • 1...Kxc3!
  • Keys
    • 1.Ba6!
      • threat
        • 2.Qxe3#
      • 1...Ke4
        • 2.Qxd5#
      • 1...Qd3
        • 2.Qxd3#
      • 1...Qe4
        • 2.Qb2#
      • 1...e2
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);XP(c)
      • Threat
        • QAR1(A),XP(d)
      • Vars
        • K(b);P-FLIGHT::QAR1(A),XP(a)
        • Q(h);SBLOCK::QAB1(A)
      • Refutation
        • Q(h);
    • Try
      • B(E);CHECK
      • Refutation
        • P(e);XB(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(A),XP(a)
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
  • Actual
    • B(F);
    • Threat
      • QAB1(A),XP(a)
    • Vars
      • K(b);P-FLIGHT::QAB1(A),XP(d)
      • Q(h);N_GUARD::QAR1(A),XQ(h)
      • Q(h);SBLOCK::QAB(A)
      • P(a);::QAB1(A)
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