MESON Chess Problem Database

Problem Display
PID: 25686 (B1r5/B3Q3/2n5/4NP2/2RN1pP1/2p1kp2/2R1n1pP/3K1b2 w - - 0 1)

Stocchi, Ottavio

3rd HM., L'Italia Scacchistica (Foschini TT), 1931

B1r5/B3Q3/2n5/4NP2/2RN1pP1/2p1kp2/2R1n1pP/3K1b2

#2

11 + 9

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Kf2
      • 2.Sdxc6#
    • 1...Sc1
      • 2.Sdxc6#
    • 1...Sg1
      • 2.Sdxc6#
    • 1...Sg3
      • 2.Sdxc6#
  • Tries
    • 1.Sxe2+?
      • 1...Sd4
        • 2.Bxd4#
      • 1...Sxa7!
    • 1.Sexc6+?
      • 1...Kf2
        • 2.Sxe2#
        • 2.Sb3#
        • 2.Sb5#
        • 2.Se6#
      • 1...Kd3!
  • Keys
    • 1.Rd2!
      • threat
        • 2.Sc2#
      • 1...c2+
        • 2.Sxc2#
      • 1...Kf2
        • 2.Sdxc6#
      • 1...Ke4
        • 2.Sxe2#
      • 1...Sexd4
        • 2.Sxc6#
      • 1...Scxd4
        • 2.Sd3#
      • 1...Sxa7
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • K(e);P_SPINS(b),S_FLIGHT::B(I)+S(E),XS(h)
    • S(b);N_GUARD::B(I)+S(E),XS(h)
  • Tries
    • Try
      • S(E);CHECK,XS(b)
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::B(I),XS(h)
      • Refutation
        • S(h);XB(I)
    • Try
      • S(G);CHECK,XS(h)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • R(B);
    • Threat
      • B(I)+S(E),DCHECK
    • Vars
      • P(d);CHECK::B(I)+S(E),DCHECK,XP(d)
      • K(e);P_SPINS(b),S_FLIGHT::B(I)+S(E),XS(h)
      • K(e);P-FLIGHT,P_SPINS(h)::R(D)+S(E),XS(b)
      • S(b);P_SPINS(b),XS(E)::QAR(J)+S(G),XS(h)
      • S(h);N_GUARD,P_SPINS(h),XS(E)::QAR(J)+S(G)
      • S(h);N_GUARD,XB(I)::QAR(J)+S(G)
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).