MESON Chess Problem Database

Problem Display
PID: 216673 (8/2p1N2b/2p5/1qp2pK1/1r1k1Pn1/2R1pPN1/rn6/1Q2B3 w - - 0 1)

Stanislav, G

Probleemblad, 1981

8/2p1N2b/2p5/1qp2pK1/1r1k1Pn1/2R1pPN1/rn6/1Q2B3

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qe2
      • 2.Sxe2#
    • 1...Qa4
      • 2.Se2#
    • 1...Qa5
      • 2.Se2#
    • 1...Qb6
      • 2.Se2#
    • 1...Qb7
      • 2.Se2#
    • 1...Qb8
      • 2.Se2#
    • 1...Rc4
      • 2.Se2#
    • 1...Bg8
      • 2.Sgxf5#
    • 1...Sc4
      • 2.Rd3#
      • 2.Qd3#
  • Keys
    • 1.Qxf5!
      • threat
        • 2.Qd7#
      • 1...Bxf5
        • 2.Sgxf5#
      • 1...Qc4
        • 2.Sxc6#
      • 1...Bg8
        • 2.Qe4#
      • 1...Sc4
        • 2.Rd3#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sf6
        • 2.Qe5#
        • 2.Qxf6#
      • 1...c4
        • 2.Se2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 7
  • Sets
    • Q(g);N_GUARD::S(E),XQ(g)
    • Q(g);N_GUARD::S(E)
    • R(d);S_CUTQ(g)::S(E)
    • B(l);N_GUARD::S(E),XP(i)
  • Actual
    • Q(A);XP(i)
    • Threat
      • QAR(A)
    • Vars
      • B(l);XQ(A)::S(E),XB(l)
      • Q(g);N_GUARD::S(H),XP(j)
      • B(l);N_GUARD::QAR1(A)
      • S(b);N_GUARD,SBLOCK,S_CUTQ(g)::R1(C)
      • S(f);N_GUARD::QAB1(A),XS(f)
      • P(h);P_PINQ(A),S_CUTQ(g)::S(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).