MESON Chess Problem Database

Problem Display
PID: 143543 (8/3BP3/3prpK1/1Ppk1N1R/1np1p2R/8/2Pb2NB/1b5Q w - - 0 1)

Papack, Daniel

2nd Prize, Schach-Aktiv, 2005

8/3BP3/3prpK1/1Ppk1N1R/1np1p2R/8/2Pb2NB/1b5Q

#2

11 + 10

23 Die Schwalbe 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Be1
      • 2.Sge3#
    • 1...Bc3
      • 2.Sge3#
    • 1...Be3
      • 2.Sgxe3#
    • 1...Sa2
      • 2.Bc6#
    • 1...Sxc2
      • 2.Bc6#
    • 1...Sd3
      • 2.Bc6#
    • 1...Sa6
      • 2.Bc6#
    • 1...Sc6
      • 2.Bxc6#
    • 1...e3
      • 2.Sgxe3#
      • 2.Sfxe3#
  • Tries
    • 1.c3?
      • threat
        • 2.Sfe3#
      • 1...Bxc3
        • 2.Sge3#
      • 1...Be3
        • 2.Sgxe3#
        • 2.Sfxe3#
      • 1...e3
        • 2.Sxe3#
      • 1...Re5!
  • Keys
    • 1.Qd1!
      • threat
        • 2.Sge3#
      • 1...Sxc2
        • 2.Bc6#
      • 1...Sd3
        • 2.Bc6#
      • 1...e3
        • 2.Sfxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • B(b);N_GUARD::S(C)
    • B(b);N_GUARD::S(C),XB(b)
    • S(c);N_GUARD::B(J)
    • S(c);N_GUARD,XP(B)::B(J)
    • S(c);N_GUARD::B(J),XS(c)
  • Tries
    • Try
      • P(B);
      • Threat
        • R(H)+S(G),DCHECK
      • Vars
        • B(b);N_GUARD,XP(B)::S(C)
        • P(e);P_PINS(G)::QAB(A)+S(C),DCHECK,XP(e)
      • Refutation
        • R(i);
  • Actual
    • Q(A);P_PINB(b)
    • Threat
      • S(C)
    • Vars
      • S(c);N_GUARD,XP(B)::B(J)
      • S(c);N_GUARD,N_SPINB(b)::B(J)
      • P(e);::R(H)+S(G),DCHECK,XP(e)
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