MESON Chess Problem Database

Problem Display
PID: 145349 (2b1R3/2r1p3/r3B2R/1qpPkN2/1p2P3/1N3PKn/6nB/4Q3 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Vahidov, Medzhnun

Shakhmaty (Riga), 1977

2b1R3/2r1p3/r3B2R/1qpPkN2/1p2P3/1N3PKn/6nB/4Q3

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qxa1#
    • 1...Rb6
      • 2.Qa1#
    • 1...Rac6
      • 2.Qa1#
    • 1...Rd6
      • 2.Qa1#
    • 1...Rxe6
      • 2.Qa1#
    • 1...Sxe1
      • 2.Kxh3#
    • 1...Se3
      • 2.Kxh3#
    • 1...Sh4
      • 2.Kxh3#
    • 1...Sg1
      • 2.Kxg2#
    • 1...Sf2
      • 2.Kxg2#
    • 1...Sg5
      • 2.Kxg2#
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sf7#
      • 1...Kxd6
        • 2.e5#
      • 1...Qxe8
        • 2.Sc4#
      • 1...Rxd6
        • 2.Qa1#
      • 1...Bxe6
        • 2.Rxe6#
      • 1...exd6
        • 2.Bd7#
      • 1...Sg5
        • 2.Kxg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 9
  • Sets
    • R(g);N_GUARD::QAB(A),XR(g)
    • R(g);N_GUARD::QAB(A)
    • R(g);N_GUARD,XB(I)::QAB(A)
    • S(a);N_GUARD,XQ(A)::B(B)+K(E),XS(b)
    • S(a);N_GUARD::B(B)+K(E),XS(b)
    • S(b);N_GUARD::B(B)+K(E),XS(a)
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • K(f);OGATE,S_FLIGHT,XS(H)::P(F)
      • Q(d);N_GUARD,XR(K)::S(H)
      • R(g);N_GUARD,SBLOCK,XS(H)::QAB(A)
      • B(j);OGATE,XB(I)::R1(J),XB(j)
      • P(i);OGATEB,XS(H)::R(K)+B(I)
      • S(b);N_GUARD::B(B)+K(E),XS(a)
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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).