MESON Chess Problem Database

Problem Display
PID: 283168 (8/p2N4/Qb3p1p/pP4nK/R2ppkPR/8/1NBP1PP1/8 w - - 0 1)

Tura, Waldemar

Zaragoza-65 JT (Problemas), 2025

8/p2N4/Qb3p1p/pP4nK/R2ppkPR/8/1NBP1PP1/8

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bc5
      • 2.Qxf6#
    • 1...Bc7
      • 2.Qxf6#
    • 1...Bd8
      • 2.Qd6#
    • 1...Sf3
      • 2.g3#
    • 1...d3
      • 2.Sxd3#
    • 1...e3
      • 2.dxe3#
  • Tries
    • 1.Qxb6?
      • threat
        • 2.Qc7#
        • 2.Qd6#
        • 2.Qxf6#
        • 2.Qb8#
      • 1...Sf3
        • 2.Qxf6#
        • 2.g3#
      • 1...Se6
        • 2.Qd6#
      • 1...Sf7
        • 2.Qxf6#
      • 1...Sh7
        • 2.Qc7#
        • 2.Qd6#
        • 2.Qb8#
      • 1...f5
        • 2.Qc7#
        • 2.Qd6#
        • 2.Qb8#
      • 1...axb6!
  • Keys
    • 1.Kg6!
      • 1...Bc5
        • 2.Qxf6#
      • 1...Bc7
        • 2.Qxf6#
      • 1...Bd8
        • 2.Qd6#
      • 1...Sf3
        • 2.g3#
      • 1...Sh3
        • 2.g5#
      • 1...Se6
        • 2.g5#
      • 1...Sf7
        • 2.g5#
      • 1...Sh7
        • 2.g5#
      • 1...d3
        • 2.Sxd3#
      • 1...e3
        • 2.dxe3#
      • 1...f5
        • 2.gxf5#
      • 1...h5
        • 2.gxh5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(f);OGATE::QAR2(K),XP(g)
    • B(f);OGATE::QAB(K)
    • S(e);SBLOCK::P(E)
    • P(a);P_SPINP(b)::S(A),XP(a)
    • P(b);OGATE,P_SPINP(a)::P(C),XP(b)
  • Tries
    • Try
      • Q(K);XB(f)
      • Threat
        • DUALS(4)
      • Vars
        • S(e);::QAB(K)
        • S(e);::QAR2(K),XP(g)
      • Refutation
        • P(i);XQ(K)
  • Actual
    • K(J);S_FLIGHT
    • Vars
      • B(f);OGATE::QAR2(K),XP(g)
      • B(f);OGATE::QAB(K)
      • S(e);SBLOCK::P(E)
      • S(e);OGATE::R(H)+P(G)
      • P(a);P_SPINP(b)::S(A),XP(a)
      • P(b);OGATE,P_SPINP(a)::P(C),XP(b)
      • P(g);OGATE::R(H)+P(G),XP(g)
      • P(h);OGATE::R(H)+P(G),XP(h)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).