MESON Chess Problem Database

Problem Display
PID: 259788 (K7/BQ4nN/5b1r/3ppPR1/N1p1k1B1/r1p2pP1/2PP3P/8 w - - 0 1)

Parcerisa, Jose Antonio Lopez

Tolosa-100 MT (Problemas), 2016

K7/BQ4nN/5b1r/3ppPR1/N1p1k1B1/r1p2pP1/2PP3P/8

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sxc3#
    • 1...Ra2
      • 2.Sxc3#
    • 1...Rxh2
      • 2.Sxf6#
    • 1...Rh3
      • 2.Sxf6#
    • 1...Rh4
      • 2.Sxf6#
    • 1...Rh5
      • 2.Sxf6#
    • 1...Bxg5
      • 2.Sxg5#
    • 1...Sxf5
      • 2.Bxf5#
  • Tries
    • 1.Qb4?
      • threat
        • 2.d3#
      • 1...d4
        • 2.Qb7#
      • 1...cxd2!
    • 1.Qb6?
      • threat
        • 2.Qe3#
      • 1...Bxg5
        • 2.Sxg5#
      • 1...Sxf5
        • 2.Bxf5#
      • 1...d4
        • 2.Qc6#
        • 2.Qb7#
      • 1...cxd2!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qe1#
      • 1...Rxh2
        • 2.Sxf6#
      • 1...Bxg5
        • 2.Sxg5#
      • 1...Sxf5
        • 2.Bxf5#
      • 1...cxd2
        • 2.c3#
      • 1...d4
        • 2.Qb7#
      • 1...Ra1
        • 2.Sxc3#
      • 1...f2
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • R(a);N_GUARD::S(E),XP(b)
    • R(i);N_GUARD,XP(C)::S(K),XB(h)
    • R(i);N_GUARD::S(K),XB(h)
    • B(h);XR(H)::S(K),XB(h)
    • S(j);OGATE,XP(G)::B(F),XS(j)
  • Tries
    • Try
      • Q(J);N_PINP(f),P_PINP(d)
      • Threat
        • P(B)
      • Vars
        • P(f);N_SPINP(d),OGATEB::QAB(J)
      • Refutation
        • P(b);XP(B)
    • Try
      • Q(J);N_PINP(f)
      • Threat
        • QAR1(J)
      • Vars
        • B(h);XR(H)::S(K),XB(h)
        • S(j);OGATE,XP(G)::B(F),XS(j)
      • Refutation
        • P(b);XP(B)
  • Actual
    • Q(J);N_PINP(f)
    • Threat
      • QAR(J)
    • Vars
      • R(i);N_GUARD,XP(C)::S(K),XB(h)
      • B(h);XR(H)::S(K),XB(h)
      • S(j);OGATE,XP(G)::B(F),XS(j)
      • P(b);OGATE,XP(B)::QAB(J)+P(A)
      • P(f);OGATEB::QAB(J)
      • R(a);N_GUARD::S(E),XP(b)
      • P(c);OGATEB::QAB(J)
HTML5 logo

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).