MESON Chess Problem Database

Problem Display
PID: 265260 (B7/2Rp4/4ppK1/3pkp2/P7/3p2NP/1N1P2P1/Q2R2B1 w - - 0 1)

Diatlov, Oleg

Coello-75 JT (Problemas), 2017

B7/2Rp4/4ppK1/3pkp2/P7/3p2NP/1N1P2P1/Q2R2B1

#2

12 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Sc4#
    • 1...d6
      • 2.Sxd3#
  • Tries
    • 1.Re1+?
      • 1...Kf4
        • 2.Sh5#
      • 1...Kd6!
  • Keys
    • 1.Bh2!
      • 1...Kd4
        • 2.Sc4#
      • 1...Kf4
        • 2.Sxd3#
      • 1...Kd6
        • 2.Sxf5#
      • 1...d4
        • 2.Sxf5#
      • 1...f4
        • 2.Sc4#
      • 1...d6
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(d);SBLOCK::QAB(A)+S(D),DCHECK
    • P(g);SBLOCK::QAB(A)+S(D),DCHECK,XP(a)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::S(G)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • B(C);
    • Vars
      • K(c);N_GUARD,S_FLIGHT::QAB(A)+S(D)
      • K(c);N_GUARD,S_FLIGHT::S(D),XP(a)
      • K(c);N_GUARD,S_FLIGHT::B(C)+S(G),DCHECK,XP(d)
      • P(b);::B(C)+S(G),XP(d)
      • P(d);SBLOCK::QAB(A)+S(D),DCHECK
      • P(g);SBLOCK::QAB(A)+S(D),DCHECK,XP(a)
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