MESON Chess Problem Database

Problem Display
PID: 193744 (8/4p3/Bn1R2K1/2P4N/1pr1k3/3p2B1/2r1PP2/1QN3n1 w - - 0 1)

Defourny, Ernesto

3rd HM., L'Italia Scacchistica, 1916

8/4p3/Bn1R2K1/2P4N/1pr1k3/3p2B1/2r1PP2/1QN3n1

#2

10 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc1
      • 2.Qxd3#
    • 1...Ra2
      • 2.Qxd3#
    • 1...Rb2
      • 2.Qxd3#
    • 1...Rxe2
      • 2.Qxd3#
    • 1...Rxc5
      • 2.Bxd3#
    • 1...Sf3
      • 2.exd3#
    • 1...Sa4
      • 2.Bb7#
    • 1...Sd7
      • 2.Bb7#
    • 1...Sa8
      • 2.Bb7#
    • 1...Sc8
      • 2.Bb7#
    • 1...e5
      • 2.Sf6#
    • 1...e6
      • 2.Sf6#
  • Tries
    • 1.f3+?
      • 1...Ke3
        • 2.Rxd3#
      • 1...Sxf3!
  • Keys
    • 1.Sb3!
      • 1...Rxe2
        • 2.Qxd3#
      • 1...Rxc5
        • 2.Bxd3#
        • 2.Rd4#
      • 1...Sxe2
        • 2.Qh1#
      • 1...dxe2
        • 2.Sd2#
      • 1...exd6
        • 2.Sf6#
      • 1...Rc1
        • 2.Sd2#
        • 2.Qxd3#
      • 1...Ra2
        • 2.Qxd3#
      • 1...Rb2
        • 2.Qxd3#
      • 1...Rd2
        • 2.Sxd2#
      • 1...R2c3
        • 2.Sd2#
      • 1...R4c3
        • 2.Rd4#
      • 1...Rd4
        • 2.Rxd4#
      • 1...Sf3
        • 2.exd3#
      • 1...Sh3
        • 2.Qh1#
      • 1...Sa4
        • 2.Bb7#
      • 1...Sd5
        • 2.Re6#
      • 1...Sd7
        • 2.Bb7#
      • 1...Sa8
        • 2.Bb7#
      • 1...Sc8
        • 2.Bb7#
      • 1...d2
        • 2.Sxd2#
      • 1...e5
        • 2.Sf6#
      • 1...e6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 2
  • Sets
    • R(b);OGATE,P_SPINP(c),XS(B)::QAB1(A),XP(c)
    • R(b);OGATE,P_SPINP(c)::QAB1(A),XP(c)
    • R(b);OGATE,P_SPINP(c),XP(C)::QAB1(A),XP(c)
    • R(e);OGATE,XP(F)::B(H),XP(c)
    • S(a);SBLOCK::P(C),XP(c)
    • S(g);N_GUARD::B(H)
    • P(h);N_GUARD::S(G)
  • Tries
    • Try
      • P(D);CHECK
      • Vars
        • K(f);P-FLIGHT::R1(I),XP(c)
      • Refutation
        • S(a);XP(D)
  • Actual
    • S(B);
    • Vars
      • R(b);OGATE,P_SPINP(c),XP(C)::QAB1(A),XP(c)
      • S(a);OGATE,XP(C)::QAB(A)
      • P(c);P_SPINR(b),XP(C)::S(B)
      • P(h);N_GUARD,XR(I)::S(G)
      • R(b);OGATE,P_SPINP(c)::QAB1(A),XP(c)
      • R(b);N_GUARD,P_SPINP(c)::S(B),XR(b)
      • R(b);N_GUARD,P_SPINP(c)::S(B)
      • R(e);N_GUARD::R1(I)
      • R(e);N_GUARD::R1(I),XR(e)
      • S(a);SBLOCK::P(C),XP(c)
      • S(a);OGATE::QAB(A)
      • S(g);N_GUARD::B(H)
      • S(g);SBLOCK::R(I)
      • P(c);P_SPINR(b)::S(B),XP(c)
      • P(h);N_GUARD::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).