MESON Chess Problem Database

Problem Display
PID: 88101 (RKB1k1Nn/2p4P/1pNp2pB/1Q3rr1/4q3/4R1b1/6b1/8 w - - 0 1)

Stocchi, Ottavio

Het Schaakleven, 1934

RKB1k1Nn/2p4P/1pNp2pB/1Q3rr1/4q3/4R1b1/6b1/8

#2

9 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf7
      • 2.Sd8#
    • 1...Qe7
      • 2.Rxe7#
  • Tries
    • 1.Ka7?
      • threat
        • 2.Be6#
      • 1...Kf7
        • 2.Sd8#
      • 1...Qe6
        • 2.Bxe6#
      • 1...Qe7
        • 2.Rxe7#
      • 1...Sf7!
    • 1.Bd7+?
      • 1...Kf7
        • 2.Sd8#
      • 1...Kxd7!
  • Keys
    • 1.Kxc7!
      • threat
        • 2.Be6#
      • 1...Qe7+
        • 2.Rxe7#
      • 1...Rf7+
        • 2.Bd7#
      • 1...d5+
        • 2.Se5#
      • 1...Kf7
        • 2.Sd8#
      • 1...Sf7
        • 2.Bd7#
      • 1...Qe6
        • 2.Bxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(j);N_SPINQ(c),S_FLIGHT::S(C)
    • Q(c);OGATE::R1(A),XQ(c)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Threat
        • R(F)+B(H)
      • Vars
        • K(j);N_SPINQ(c),S_FLIGHT::S(C)
        • Q(c);::R(F)+B(H),XQ(c)
        • Q(c);OGATE::R1(A),XQ(c)
      • Refutation
        • S(k);
    • Try
      • B(H);CHECK
      • Vars
        • K(j);N_SPINQ(c),S_FLIGHT::S(C)
      • Refutation
        • K(j);N_SPINQ(c),S_FLIGHT,XB(H)
  • Actual
    • K(G);S_FLIGHT,XP(i)
    • Threat
      • R(F)+B(H)
    • Vars
      • Q(c);CHECK,OGATE::R1(A),XQ(c)
      • R(d);CHECK,SBLOCK::R(F)+B(H),DCHECK
      • P(g);CHECK::QAB(B)+S(C)
      • K(j);N_SPINQ(c),S_FLIGHT::S(C)
      • S(k);SBLOCK::R(F)+B(H),DCHECK
      • Q(c);::R(F)+B(H),XQ(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).