MESON Chess Problem Database

Problem Display
PID: 135447 (nnBB1Q2/P2p4/prkN4/Kp2b3/1P1p4/2N5/b6q/8 w - - 0 1)

Paslack, Rainer

1st Prize, Sachsische Zeitung, 2003

nnBB1Q2/P2p4/prkN4/Kp2b3/1P1p4/2N5/b6q/8

#2

8 + 11

23 Die Schwalbe 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rb7
      • 2.Bxb7#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qc5#
      • 1...Bd6
        • 2.Qf3#
      • 1...d6!
    • 1.Sb7?
      • threat
        • 2.Qc5#
      • 1...d6
        • 2.axb8S#
      • 1...Bd6!
    • 1.Qf3+?
      • 1...Bd5
        • 2.Qxd5#
      • 1...Kxd6!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Qc5#
      • 1...d6
        • 2.Se7#
      • 1...Bd6
        • 2.Sxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(g);N_GUARD::B(F),XR(g)
  • Tries
    • Try
      • S(D);
      • Threat
        • QAR1(H)
      • Vars
        • B(e);S_CUTP(i)::QAB(H)
      • Refutation
        • P(i);
    • Try
      • S(D);
      • Threat
        • QAR1(H)
      • Vars
        • P(i);S_CUTB(e)::PXS(k)=S
      • Refutation
        • B(e);
    • Try
      • Q(H);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAB1(H),XB(a)
      • Refutation
        • K(h);P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Threat
      • QAR1(H)
    • Vars
      • P(i);SBLOCK::S(D)
      • B(e);N_GUARD::S(D),XP(c)
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