MESON Chess Problem Database

Problem Display
PID: 265734 (3K4/B1p2P2/3k1p2/3p1P2/2p3N1/2P2P1B/3Q4/8 w - - 0 1)

Bielefeldt, German

Parcerisa-80 (Problemas), 2022

3K4/B1p2P2/3k1p2/3p1P2/2p3N1/2P2P1B/3Q4/8

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...c6
      • 2.Qf4#
      • 2.Qh2#
      • 2.f8Q#
      • 2.f8B#
  • Tries
    • 1.Se3?
      • threat
        • 2.Qxd5#
      • 1...Ke5
        • 2.Qh2#
      • 1...Kc6
        • 2.Qxd5#
      • 1...c6
        • 2.Sxc4#
        • 2.Qh2#
      • 1...d4!
    • 1.Qe3?
      • threat
        • 2.Qc5#
        • 2.Qe6#
      • 1...d4
        • 2.Qe6#
      • 1...c5
        • 2.Qxc5#
        • 2.Qe6#
      • 1...Kc6!
    • 1.Qa2?
      • 1...Kc6
        • 2.Qa6#
      • 1...c5
        • 2.Qa6#
      • 1...c6
        • 2.Qh2#
        • 2.f8Q#
        • 2.f8B#
      • 1...d4!
    • 1.Qd4?
      • threat
        • 2.Qc5#
        • 2.Qxf6#
      • 1...c5
        • 2.Qxc5#
        • 2.Qxf6#
      • 1...Kc6!
  • Keys
    • 1.Se5!
      • 1...Kxe5
        • 2.Qh2#
      • 1...fxe5
        • 2.Qh6#
      • 1...d4
        • 2.Qxd4#
      • 1...c5
        • 2.Bb8#
      • 1...c6
        • 2.Sxc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(A),XP(b)
      • Vars
        • K(c);N_GUARD,N_SPINP(b),S_FLIGHT::QAB(A)
        • K(c);N_SPINP(b),P-FLIGHT::QAB1(A),XP(b)
      • Refutation
        • P(b);
    • Try
      • Q(A);N_PINP(b)
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::QAR1(A)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);N_PINP(b)
      • Vars
        • K(c);P-FLIGHT,S_CUTP(e)::QAR2(A)
        • P(e);N_GUARD::QAR(A)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • K(c);N_SPINP(b),P-FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(c);N_SPINP(b),OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • P(d);OGATEB,SBLOCK,XS(E)::QAR(A)
      • P(b);OGATEB::QAR2(A),XP(b)
      • P(e);OGATEB,SBLOCK::B(G)
      • P(e);SBLOCK::S(E),XP(a)
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Developed and maintained by Brian Stephenson.
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