MESON Chess Problem Database

Problem Display
PID: 25840 (4R3/b2N1bK1/5rp1/1Q3p2/n2k4/8/3P2B1/8 w - - 0 1)

Stocchi, Ottavio

2nd HM., Western Morning News, 1933

4R3/b2N1bK1/5rp1/1Q3p2/n2k4/8/3P2B1/8

#2

6 + 7

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Qd5#
    • 1...Bd5
      • 2.Qxd5#
    • 1...Bxe8
      • 2.Qd5#
    • 1...f4
      • 2.Re4#
  • Tries
    • 1.Bf1?
      • threat
        • 2.Qd3#
        • 2.Qe5#
      • 1...Re6
        • 2.Qd3#
        • 2.Qc4#
      • 1...Bc5
        • 2.Qd3#
      • 1...Bb8
        • 2.Qd3#
      • 1...Bc4
        • 2.Qxc4#
        • 2.Qe5#
      • 1...Bd5
        • 2.Qd3#
      • 1...Sb2
        • 2.Qe5#
      • 1...Sc5!
  • Keys
    • 1.Se5!
      • threat
        • 2.Sf3#
      • 1...Bxe8
        • 2.Qd5#
      • 1...Re6
        • 2.Qd5#
      • 1...Bc5
        • 2.Qd3#
      • 1...Bc4
        • 2.Qxc4#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Be6
        • 2.Sc6#
      • 1...Sc5
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(d);S_CUTB(g)::QAR1(C)
    • B(g);N_GUARD::QAR1(C),XB(g)
    • B(g);N_GUARD,XR(F)::QAR1(C)
    • P(c);N_GUARD::R1(F)
  • Tries
    • Try
      • B(B);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);::QAR1(C)
        • B(g);SBLOCK::QAR1(C)
        • S(a);::QAB1(C)
      • Refutation
        • S(a);
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • B(g);N_GUARD,XR(F)::QAR1(C)
      • R(d);S_CUTB(g)::QAR1(C)
      • B(f);SBLOCK::QAR1(C)
      • B(g);N_GUARD::QAR1(C),XB(g)
      • B(g);S_CUTR(d)::S(D)
      • S(a);N_GUARD,SBLOCK::QAB(C)
HTML5 logo

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).