MESON Chess Problem Database

Problem Display
PID: 108637 (2bn1bq1/1p2p1P1/1P5N/R3p2p/N3k3/1pR1P3/5QP1/1K2n3 w - - 0 1)

Kiss, Janos

BTSB TT, 1952

2bn1bq1/1p2p1P1/1P5N/R3p2p/N3k3/1pR1P3/5QP1/1K2n3

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.Qxf5#
    • 1...Sc2
      • 2.Qf3#
    • 1...Sxg2
      • 2.Qxg2#
    • 1...Sd3
      • 2.Qf3#
    • 1...Sf3
      • 2.Qxf3#
      • 2.gxf3#
    • 1...Se6
      • 2.Qf5#
    • 1...e6
      • 2.Qh4#
  • Tries
    • 1.Rc4+?
      • 1...Kd3
        • 2.Sb2#
      • 1...Qxc4!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Sc5#
      • 1...Sxg2
        • 2.Qxg2#
      • 1...Qd5
        • 2.Qxd5#
      • 1...Qc4
        • 2.Rxc4#
      • 1...Sd3
        • 2.Qxd3#
      • 1...Se6
        • 2.Qd5#
      • 1...e6
        • 2.Rc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(h);N_GUARD::QAB1(B),XB(h)
    • S(a);N_GUARD::QAB1(B)
    • S(a);OGATE,XP(C)::QAB(B),XS(a)
    • S(i);S_CUTB(h)::QAB1(B)
    • P(g);S_CUTB(h)::QAR(B)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(c);S_FLIGHT::S(F)
      • Refutation
        • Q(k);XR(D)
  • Actual
    • Q(B);
    • Threat
      • S(F)
    • Vars
      • S(a);OGATE,XP(C)::QAB(B),XS(a)
      • Q(k);N_GUARD::QAB1(B),XQ(k)
      • Q(k);N_GUARD::R(D),XQ(k)
      • S(a);N_GUARD::QAB1(B),XS(a)
      • S(i);S_CUTQ(k)::QAB1(B)
      • P(g);S_CUTQ(k)::R(D)
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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).