MESON Chess Problem Database

Problem Display
PID: 154765 (4RR2/bn3q1p/3p2b1/4PkBp/2B4P/2N4P/K2Np3/n3r3 w - - 0 1)

Handloser, Ralf Chris

Probleemblad, 2014

4RR2/bn3q1p/3p2b1/4PkBp/2B4P/2N4P/K2Np3/n3r3

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Qf6
      • 2.Bd3#
      • 2.Rxf6#
    • 1...Qxf8
      • 2.Bd3#
    • 1...Sb3
      • 2.Bd3#
    • 1...dxe5
      • 2.Be6#
    • 1...d5
      • 2.Bd3#
  • Tries
    • 1.Sb3?
      • threat
        • 2.Bd3#
      • 1...dxe5
        • 2.Be6#
      • 1...Sc5
        • 2.Sd4#
      • 1...Rd1!
    • 1.Sf3?
      • threat
        • 2.Be6#
      • 1...Sc5
        • 2.Sd4#
      • 1...d5
        • 2.Bd3#
      • 1...Sd8!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Bd3#
      • 1...dxe5
        • 2.Se7#
      • 1...Sc5
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(j);N_PINB(E),N_SPINQ(j),XR(J)::B(E)
    • S(a);N_PINB(E)::B(E)
    • P(f);SBLOCK,XP(G)::B(E)
    • P(f);N_PINB(E)::B(E)
  • Tries
    • Try
      • S(B);N_SPINB(E)
      • Threat
        • B(E)
      • Vars
        • P(f);SBLOCK,XP(G)::B(E)
        • S(i);S_CUTB(h)::S(B)
      • Refutation
        • R(b);
    • Try
      • S(B);
      • Threat
        • B(E)
      • Vars
        • S(i);S_CUTB(h)::S(B)
        • P(f);N_PINB(E)::B(E)
      • Refutation
        • S(i);
  • Actual
    • S(C);N_SPINB(E)
    • Threat
      • B(E)
    • Vars
      • P(f);SBLOCK,XP(G)::S(C)
      • S(i);S_CUTB(h)::S(C)
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