MESON Chess Problem Database

Problem Display
PID: 99308 (8/1p1BpN2/4q2p/3pQ3/1Pkp1Npr/P6p/3P4/1R2K3 w - - 0 1)

Molnar, Arpad

Sakkelet, 1997

8/1p1BpN2/4q2p/3pQ3/1Pkp1Npr/P6p/3P4/1R2K3

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5
      • 2.Qc7#
    • 1...Qxf7
      • 2.Qc7#
    • 1...Qxe5+
      • 2.Sxe5#
    • 1...Qa6
      • 2.Qxd5#
    • 1...Qb6
      • 2.Qxd5#
    • 1...Qf6
      • 2.Qxd5#
    • 1...Qg6
      • 2.Qxd5#
  • Tries
    • 1.Qxe6?
      • threat
        • 2.Se5#
        • 2.Qxd5#
      • 1...d3
        • 2.Qxd5#
      • 1...Rh5!
  • Keys
    • 1.Ba4!
      • threat
        • 2.Rc1#
      • 1...Qxe5+
        • 2.Sxe5#
      • 1...Qf5
        • 2.Qc7#
      • 1...Qg6
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • Q(g);N_PINQ(G)::QAR(G)
    • Q(g);N_PINQ(G),XS(I)::QAR(G)
    • Q(g);CHECK,XQ(G)::S(I),XQ(g)
    • Q(g);N_PINQ(G)::QAB1(G),XP(f)
  • Tries
    • Try
      • Q(G);N_SPINQ(G),P_PINP(f),XQ(g)
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::QAB1(G),XP(f)
      • Refutation
        • R(e);
  • Actual
    • B(H);
    • Threat
      • R(A)
    • Vars
      • Q(g);CHECK,XQ(G)::S(I),XQ(g)
      • Q(g);N_PINQ(G)::QAR(G)
      • Q(g);N_PINQ(G)::QAB1(G),XP(f)
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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).