MESON Chess Problem Database

Problem Display
PID: 102608 (Q7/N1b1p2b/nn2B2R/1N2k3/1pr1P1rp/2P5/8/3K1R2 w - - 0 1)

Stocchi, Ottavio

Echec et Mat, 1952

Q7/N1b1p2b/nn2B2R/1N2k3/1pr1P1rp/2P5/8/3K1R2

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4+
      • 2.cxd4#
    • 1...Rcxe4
      • 2.Sc6#
    • 1...Rgxe4
      • 2.Qh8#
    • 1...Bf5
      • 2.Rxf5#
    • 1...Bg8
      • 2.Rf5#
    • 1...Sa4
      • 2.Qd5#
    • 1...Sd5
      • 2.Qxd5#
    • 1...Sd7
      • 2.Qd5#
    • 1...Sc8
      • 2.Qd5#
  • Keys
    • 1.Bd5!
      • threat
        • 2.Re6#
      • 1...Rd4+
        • 2.cxd4#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...Bg6
        • 2.Qh8#
      • 1...Rc6
        • 2.Sxc6#
      • 1...Rg6
        • 2.Rf5#
      • 1...Bf5
        • 2.Rxf5#
      • 1...Bg8
        • 2.Rf5#
      • 1...Sc5
        • 2.Sc6#
      • 1...e6
        • 2.Rxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 5
  • Sets
    • R(b);CHECK,OGATE::P(C),XR(b)
    • R(b);N_GUARD,SBLOCK,XP(D)::S(H)
    • R(c);N_GUARD,SBLOCK,XP(D)::QAB(I)
    • B(j);N_GUARD::R1(B),XB(j)
    • B(j);N_GUARD::R1(B)
    • S(g);N_GUARD::QAR1(I)
    • S(g);N_GUARD::QAR1(I),XS(g)
  • Actual
    • B(F);
    • Threat
      • R1(G)
    • Vars
      • R(b);CHECK,OGATE::P(C),XR(b)
      • S(g);OGATE,XB(F)::QAR1(I),XS(g)
      • B(j);S_CUTR(c)::QAB(I)
      • R(b);N_GUARD::S(H),XR(b)
      • R(c);S_CUTB(j)::R1(B)
      • B(j);N_GUARD::R1(B),XB(j)
      • B(j);N_GUARD::R1(B)
      • S(f);S_CUTR(b)::S(H)
      • P(i);::R1(G),XP(i)
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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).