MESON Chess Problem Database

Problem Display
PID: 201733 (2K5/2p1B3/R4Pp1/3k2nP/2p2PP1/4P3/P1Q5/8 w - - 0 1)

Kintzig, Robert

Uj Nemezdek, 1922

2K5/2p1B3/R4Pp1/3k2nP/2p2PP1/4P3/P1Q5/8

#2

10 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sh3
      • 2.Qg2#
    • 1...Se6
      • 2.Qg2#
    • 1...Sf7
      • 2.Qg2#
    • 1...Sh7
      • 2.Qg2#
    • 1...c3
      • 2.Qd3#
    • 1...gxh5
      • 2.Qf5#
    • 1...c5
      • 2.Rd6#
  • Tries
    • 1.Qa4?
      • threat
        • 2.Qc6#
      • 1...c6
        • 2.Qxc6#
      • 1...Ke4!
    • 1.Qg2+?
      • 1...Sf3
        • 2.Qxf3#
      • 1...Se4!
  • Keys
    • 1.Re6!
      • 1...Kxe6
        • 2.Qxc4#
      • 1...Sxe6
        • 2.Qg2#
      • 1...gxh5
        • 2.Qf5#
      • 1...c3
        • 2.Qb3#
      • 1...Sf3
        • 2.Qe4#
      • 1...Sh3
        • 2.Qe4#
      • 1...Se4
        • 2.Qxe4#
      • 1...Sf7
        • 2.Qe4#
      • 1...Sh7
        • 2.Qe4#
      • 1...c5
        • 2.Rd6#
      • 1...c6
        • 2.Re5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 4
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAB(B)
    • P(a);N_GUARD::QAR2(B)
    • P(d);N_GUARD,XP(F)::QAR2(B)
    • P(e);N_GUARD,SBLOCK::R1(G)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • P(e);::QAB1(B),XP(e)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB(B),XS(c)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • R(G);
    • Vars
      • K(b);S_FLIGHT,XR(G)::QAB(B),XP(a)
      • S(c);N_GUARD,SBLOCK,XR(G)::QAB(B)
      • P(d);N_GUARD,XP(F)::QAR2(B)
      • P(a);OGATEB::QAB(B)
      • S(c);N_GUARD::QAB1(B)
      • S(c);N_GUARD::QAB1(B),XS(c)
      • P(e);N_GUARD,SBLOCK::R1(G)
      • P(e);SBLOCK::R1(G)
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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).