MESON Chess Problem Database

Problem Display
PID: 99317 (4rQ2/qNpb1pBp/7p/2p1p3/2p1k1P1/2P2R1N/r5P1/2bR1K2 w - - 0 1)

Nemeth, Gyula

Magyar Sakkelet, 1980

4rQ2/qNpb1pBp/7p/2p1p3/2p1k1P1/2P2R1N/r5P1/2bR1K2

#2

10 + 13

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qb8
      • 2.Sxc5#
    • 1...Qa4
      • 2.Sxc5#
    • 1...Qa6
      • 2.Sxc5#
    • 1...Qa8
      • 2.Sxc5#
    • 1...Ra1
      • 2.Sf2#
    • 1...Rf2+
      • 2.Sxf2#
    • 1...Ra3
      • 2.Sf2#
    • 1...Ra4
      • 2.Sf2#
    • 1...Ra5
      • 2.Sf2#
    • 1...Ra6
      • 2.Sf2#
    • 1...Bb2
      • 2.Sf2#
    • 1...c6
      • 2.Sd6#
  • Keys
    • 1.Qxc5!
      • threat
        • 2.Qd5#
      • 1...Rf2+
        • 2.Sxf2#
      • 1...Qxc5
        • 2.Sxc5#
      • 1...Qxb7
        • 2.Qxc4#
      • 1...Qa5
        • 2.Qxc4#
      • 1...Rd2
        • 2.Re3#
      • 1...Ra5
        • 2.Sf2#
      • 1...Bd2
        • 2.Sf2#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Be6
        • 2.Qxe5#
      • 1...c6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 9
  • Sets
    • Q(h);N_GUARD::S(H),XP(e)
    • R(b);N_GUARD::S(F)
    • R(b);CHECK,N_GUARD::S(F),XR(b)
    • B(a);S_CUTR(b)::S(F)
    • P(i);N_GUARD::S(H)
  • Actual
    • Q(J);XP(e)
    • Threat
      • QAB1(J)
    • Vars
      • R(b);CHECK,N_GUARD::S(F),XR(b)
      • Q(h);XQ(J)::S(H),XQ(h)
      • Q(h);N_GUARD,XS(H)::QAR2(J),XP(c)
      • Q(h);N_GUARD::QAR2(J),XP(c)
      • R(b);S_CUTB(a)::R1(E)
      • R(b);N_GUARD::S(F)
      • B(a);S_CUTR(b)::S(F)
      • B(j);N_GUARD::QAB(J),XB(j)
      • B(j);S_CUTR(m)::QAR1(J),XP(f)
      • P(i);N_GUARD::S(H)
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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).