MESON Chess Problem Database

Problem Display
PID: 151949 (7q/5B2/8/4p2p/4N3/3p2p1/R1PB2K1/2Nk4 w - - 0 1)

Onkoud, Abdelaziz

4th HM., diagrammes, 2008

7q/5B2/8/4p2p/4N3/3p2p1/R1PB2K1/2Nk4

#2

7 + 6

23 Die Schwalbe 2014
17267 FIDE Album (2007-2009) 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Qa8
      • 2.Bxh5#
    • 1...Qb8
      • 2.Bxh5#
    • 1...Qd8
      • 2.Bxh5#
  • Tries
    • 1.Sb3?
      • threat
        • 2.Sc3#
      • 1...Ke2
        • 2.Sc3#
      • 1...Qa8
        • 2.Bxh5#
      • 1...Qc8!
    • 1.Bb3?
      • threat
        • 2.cxd3#
        • 2.c3#
        • 2.c4#
      • 1...dxc2
        • 2.Bxc2#
      • 1...Qc8
        • 2.c3#
        • 2.c4#
      • 1...Qg8
        • 2.c4#
      • 1...Qb8!
    • 1.cxd3?
      • threat
        • 2.Sc3#
        • 2.Bb3#
      • 1...Qa8
        • 2.Bb3#
        • 2.Bxh5#
      • 1...Qb8
        • 2.Sc3#
        • 2.Bxh5#
      • 1...Qg8
        • 2.Sc3#
      • 1...Qc8!
    • 1.c3?
      • threat
        • 2.Bb3#
      • 1...Qb8
        • 2.Bxh5#
      • 1...Qg8!
  • Keys
    • 1.c4!
      • threat
        • 2.Sc3#
      • 1...Qa8
        • 2.Bxh5#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • Q(f);N_GUARD,P_PINS(F)::B(G),XP(e)
    • Q(f);N_GUARD::B(G),XP(e)
  • Tries
    • Try
      • S(A);
      • Threat
        • S(F)
      • Vars
        • K(a);S_FLIGHT::S(F)
        • Q(f);N_GUARD,P_PINS(F)::B(G),XP(e)
      • Refutation
        • Q(f);
    • Try
      • B(G);
      • Threat
        • DUALS(3)
      • Vars
        • P(b);OGATE,P_SPINP(b),XP(C)::B(G),XP(b)
        • Q(f);::B(G)+P(C)
      • Refutation
        • Q(f);
    • Try
      • P(C);XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • Q(f);::S(F)
      • Refutation
        • Q(f);
    • Try
      • P(C);
      • Threat
        • B(G)
      • Vars
        • Q(f);N_GUARD::B(G),XP(e)
      • Refutation
        • Q(f);
  • Actual
    • P(C);
    • Threat
      • S(F)
    • Vars
      • Q(f);N_GUARD,P_PINS(F)::B(G),XP(e)
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