MESON Chess Problem Database

Problem Display
PID: 96406 (3r3B/5Bn1/b1p1NQ2/3PN1p1/1n2k1P1/8/3P4/3K4 w - - 0 1)

Garca, J

Problemas, 1966

3r3B/5Bn1/b1p1NQ2/3PN1p1/1n2k1P1/8/3P4/3K4

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sh5
      • 2.Qf3#
    • 1...Se8
      • 2.Qf3#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Sc5#
      • 1...Kd3
        • 2.Qd4#
      • 1...Kxd5
        • 2.Qd4#
      • 1...Sxe6
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sd3
        • 2.Sxg5#
      • 1...c5
        • 2.Sxc5#
      • 1...Rxd5!
    • 1.Sd7?
      • threat
        • 2.Sec5#
      • 1...Kd3
        • 2.Qd4#
      • 1...Kxd5
        • 2.Qd4#
      • 1...Sxe6
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...Sd3
        • 2.Sxg5#
      • 1...c5
        • 2.Sexc5#
      • 1...Be2+!
    • 1.Qf4+?
      • 1...Kxd5
        • 2.Qd4#
      • 1...gxf4!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sec5#
      • 1...Kxd3
        • 2.Qd4#
      • 1...Kxd5
        • 2.Qd4#
      • 1...Rxd5
        • 2.Sf2#
      • 1...Sxd3
        • 2.Sxg5#
      • 1...Sxe6
        • 2.Qf5#
      • 1...Sf5
        • 2.Qxf5#
      • 1...c5
        • 2.Sexc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • S(f);::QAB1(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(F)
      • Vars
        • K(b);S_FLIGHT::QAR1(G)
        • K(b);S_FLIGHT,XP(D)::QAR1(G)
        • S(f);N_GUARD,XS(F)::QAB1(G)
        • S(f);N_GUARD::QAB1(G),XS(f)
        • S(a);SBLOCK::S(F),XP(c)
        • P(e);::S(F),XP(e)
      • Refutation
        • R(g);P_PINP(B),XP(D)
    • Try
      • S(E);
      • Threat
        • S(F)
      • Vars
        • K(b);S_FLIGHT::QAR1(G)
        • K(b);S_FLIGHT,XP(D)::QAR1(G)
        • S(f);N_GUARD,XS(F)::QAB1(G)
        • S(f);N_GUARD::QAB1(G),XS(f)
        • S(a);SBLOCK::S(F),XP(c)
        • P(e);::S(F),XP(e)
      • Refutation
        • B(d);CHECK
    • Try
      • Q(G);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XP(D)::QAR1(G)
      • Refutation
        • P(c);XQ(G)
  • Actual
    • S(E);
    • Threat
      • S(F)
    • Vars
      • K(b);S_FLIGHT,XS(E)::QAR1(G)
      • K(b);S_FLIGHT,XP(D)::QAR1(G)
      • R(g);SBLOCK,XP(D)::S(E)
      • S(a);SBLOCK,XS(E)::S(F),XP(c)
      • S(f);N_GUARD,XS(F)::QAB1(G)
      • S(f);N_GUARD::QAB1(G),XS(f)
      • P(e);::S(F),XP(e)
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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).