MESON Chess Problem Database

Problem Display
PID: 277884 (4Q3/B2P1p2/5pp1/3pP3/R2pqp2/2Rpkr2/4P3/1B2Kn2 w - - 0 1)

Klemanic, Emil

3rd HM., Pat a Mat, 2014

4Q3/B2P1p2/5pp1/3pP3/R2pqp2/2Rpkr2/4P3/1B2Kn2

#2

9 + 11

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Tries
    • 1.Rxd4?
      • threat
        • 2.Rdxd3#
      • 1...Qxd4
        • 2.exf6#
      • 1...Qxe5
        • 2.Rcxd3#
      • 1...Qf5!
    • 1.exf6?
      • threat
        • 2.Bxd4#
        • 2.Rxd3#
      • 1...Qxe8
        • 2.dxe8Q#
        • 2.dxe8R#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qe7
        • 2.Qxe7#
      • 1...Qe6!
  • Keys
    • 1.exd3!
      • threat
        • 2.dxe4#
      • 1...Qxd3
        • 2.exf6#
      • 1...Qxe5
        • 2.Bxd4#
      • 1...Qf5
        • 2.Bxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);XP(e)
      • Threat
        • B(G)+R(E),DCHECK,XP(b)
      • Vars
        • Q(f);P_SPINQ(f),XR(E)::QAR(I)+P(F),XP(i)
        • Q(f);N_GUARD,P_SPINQ(f),XP(F)::R1(D),XP(b)
      • Refutation
        • Q(f);
    • Try
      • P(F);P_PINQ(f),XP(i)
      • Threat
        • DUALS(2)
      • Vars
        • Q(f);N_SPINQ(f),OGATE,XQ(I)::PXQ(f)=Q
        • Q(f);OGATEB::QAR2(I),XQ(f)
        • Q(f);OGATEB::QAR(I),XQ(f)
      • Refutation
        • Q(f);
  • Actual
    • P(C);P_PINP(e),XP(b)
    • Threat
      • R(D)+P(C),XQ(f)
    • Vars
      • Q(f);P_SPINQ(f),XP(C)::QAR(I)+P(F),XP(i)
      • Q(f);N_GUARD,P_SPINQ(f),XP(F)::B(G),XP(e)
      • Q(f);N_GUARD::B(G),XP(e)
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