MESON Chess Problem Database

Problem Display
PID: 134818 (5R2/8/1N1PN1pK/2P1k1Bp/p4RP1/1q6/6n1/b6Q w - - 0 1)

Guida, Marco

4th HM., Die Schwalbe, 2009

5R2/8/1N1PN1pK/2P1k1Bp/p4RP1/1q6/6n1/b6Q

#2

10 + 7

23 Die Schwalbe 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Re8#
    • 1...Qxe6
      • 2.Qxa1#
    • 1...Se1
      • 2.Re4#
      • 2.Qe4#
    • 1...Se3
      • 2.Re4#
      • 2.Qe4#
    • 1...Sh4
      • 2.Re4#
      • 2.Qe4#
  • Tries
    • 1.Sc7?
      • threat
        • 2.Sd7#
      • 1...Qxb6
        • 2.Re8#
      • 1...Sxf4
        • 2.Bf6#
      • 1...Qe6
        • 2.Qxa1#
      • 1...Qf7
        • 2.Qxa1#
      • 1...Qb5!
  • Keys
    • 1.Re8!
      • threat
        • 2.Bf6#
      • 1...Qxe6
        • 2.Qxa1#
      • 1...Qxb6
        • 2.Sc7#
      • 1...Sxf4
        • 2.Sd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • K(e);OGATEB,P-FLIGHT,XS(H)::R(J)
    • Q(c);N_GUARD,SBLOCK,XS(H)::QAB(A),XB(a)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(F)
      • Vars
        • Q(c);N_GUARD,XS(F)::R(J)
        • S(b);SBLOCK,XR(B)::B(E)
        • Q(c);N_GUARD::QAB(A),XB(a)
      • Refutation
        • Q(c);
  • Actual
    • R(J);
    • Threat
      • B(E)
    • Vars
      • Q(c);N_GUARD,P_SPINQ(c),XS(H)::QAB(A),XB(a)
      • Q(c);N_GUARD,XS(F)::R(J)+S(H)
      • S(b);XR(B)::S(F)
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