MESON Chess Problem Database

Problem Display
PID: 28590 (7K/2p2Q2/P1kP2N1/Pp6/1P1p1pb1/1NbR1n2/3qP1BB/2R5 w - - 0 1)

Stocchi, Ottavio

Il Problema, 1934

7K/2p2Q2/P1kP2N1/Pp6/1P1p1pb1/1NbR1n2/3qP1BB/2R5

#2

13 + 9

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...cxd6
      • 2.Sxd4#
      • 2.Qb7#
  • Tries
    • 1.Bxf3+?
      • 1...Kxd6
        • 2.Qd5#
        • 2.Qe7#
      • 1...Bxf3!
    • 1.Rxd4?
      • threat
        • 2.Se5#
        • 2.Qxc7#
      • 1...Qxe2
        • 2.Qxc7#
      • 1...cxd6
        • 2.Qb7#
      • 1...Qe3
        • 2.Qxc7#
      • 1...Bd7
        • 2.Se5#
        • 2.Se7#
        • 2.Bxf3#
        • 2.Qd5#
      • 1...Qxd4+!
  • Keys
    • 1.e4!
      • threat
        • 2.Qxc7#
      • 1...dxe4 ep+
        • 2.Se5#
      • 1...Kxd6
        • 2.Qd5#
      • 1...cxd6
        • 2.Qb7#
      • 1...fxe4 ep
        • 2.Sxd4#
      • 1...Bd7
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK,XS(c)
      • Refutation
        • B(f);XB(C)
    • Try
      • R(F);P_SPINR(F),XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);XP(B)::QAR1(L),XP(i)
        • P(i);OGATE,XP(J)::QAB1(L)
        • Q(a);::QAR1(L),XP(i)
      • Refutation
        • Q(a);CHECK,XR(F)
  • Actual
    • P(B);N_PINS(c)
    • Threat
      • QAR1(L),XP(i)
    • Vars
      • P(d);CHECK,EP,P_SPINS(c),XP(B)::S(K)
      • K(h);N_SPINB(b),P-FLIGHT,P_SPINP(d),XP(J)::QAR1(L)
      • P(i);OGATE,SBLOCK,XP(J)::QAB1(L)
      • P(e);EP,P_SPINS(c),XP(B)::S(E),XP(d)
      • B(f);SBLOCK::QAB1(L)
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).