MESON Chess Problem Database

Problem Display
PID: 255785 (3B1R2/3p4/1KnkPN1R/8/5PNQ/8/2P5/1b4rq w - - 0 1)

Guida, Marco

3rd Prize, Mansfield-125 MT (Kudesnik), 2021

3B1R2/3p4/1KnkPN1R/8/5PNQ/8/2P5/1b4rq

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qd5
      • 2.Se8#
  • Tries
    • 1.Se3?
      • threat
        • 2.Se8#
      • 1...Kxe6
        • 2.Sfg4#
      • 1...dxe6
        • 2.Sc4#
      • 1...Rg6!
    • 1.Bc7+?
      • 1...Ke7
        • 2.Re8#
      • 1...Kxe6!
    • 1.c4?
      • threat
        • 2.Se8#
      • 1...Kxe6
        • 2.Se4#
      • 1...dxe6
        • 2.c5#
      • 1...Bg6!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Se8#
      • 1...Kxe6
        • 2.Sh5#
      • 1...Qxh6
        • 2.Qd5#
      • 1...dxe6
        • 2.Qc5#
      • 1...Qh5
        • 2.Se4#
      • 1...Se5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • Q(c);SBLOCK::S(G)
  • Tries
    • Try
      • S(C);
      • Threat
        • S(G)
      • Vars
        • K(e);P-FLIGHT,XP(F)::R(H)+S(G)
        • P(f);SBLOCK,XP(F)::S(C)
      • Refutation
        • R(b);
    • Try
      • B(I);CHECK
      • Vars
        • K(e);S_FLIGHT::R1(J)
      • Refutation
        • K(e);P-FLIGHT,XP(F)
    • Try
      • P(A);
      • Threat
        • S(G)
      • Vars
        • K(e);P-FLIGHT,S_CUTB(a),S_CUTQ(c),XP(F)::R(H)+S(G)
        • P(f);SBLOCK,XP(F)::P(A)
      • Refutation
        • B(a);
  • Actual
    • Q(D);
    • Threat
      • S(G)
    • Vars
      • K(e);P-FLIGHT,XP(F)::R(H)+S(G)
      • Q(c);N_GUARD,XR(H)::QAR1(D)
      • P(f);SBLOCK,XP(F)::QAB1(D)
      • Q(c);N_GUARD::S(G)
      • S(d);N_GUARD::QAB1(D),XS(d)
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