MESON Chess Problem Database

Problem Display
PID: 91595 (Nn1b4/2Qp1r2/RKn1k1B1/1R2PN2/3p4/8/7q/8 w - - 0 1)

Stocchi, Ottavio

Probleemblad, 1949

Nn1b4/2Qp1r2/RKn1k1B1/1R2PN2/3p4/8/7q/8

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Qd6#
    • 1...Bg5
      • 2.Qd6#
    • 1...Bf6
      • 2.Qd6#
    • 1...Bxc7+
      • 2.Sxc7#
    • 1...Se7
      • 2.Sxd4#
  • Keys
    • 1.Kb7!
      • threat
        • 2.Qd6#
      • 1...Qxe5
        • 2.Qxe5#
      • 1...Bxc7
        • 2.Sxc7#
      • 1...Be7
        • 2.Sxd4#
      • 1...d5
        • 2.Sxd4#
      • 1...d6
        • 2.Qxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • B(h);N_PINQ(G)::QAR1(G)
    • B(h);CHECK,XQ(G)::S(H),XB(h)
    • S(c);N_GUARD,SBLOCK::S(C),XP(b)
  • Actual
    • K(E);N_SPINQ(G),P-FLIGHT,P_PINS(c)
    • Threat
      • QAR1(G)
    • Vars
      • Q(a);OGATE,XP(B)::QAR1(G),XQ(a)
      • B(h);XQ(G)::S(H),XB(h)
      • B(h);SBLOCK::S(C),XP(b)
      • P(e);P_PINQ(G)::S(C),XP(b)
      • P(e);N_SPINS(c),OGATE,P_PINQ(G)::QAB1(G),XR(f)
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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).