MESON Chess Problem Database

Problem Display
PID: 64149 (K5B1/8/2p1P2N/N1Qpk1P1/bR1n1nR1/3P1P2/q7/4r3 w - - 0 1)

Stocchi, Ottavio

2/3 HM., Die Schwalbe 102. TT, 1951

K5B1/8/2p1P2N/N1Qpk1P1/bR1n1nR1/3P1P2/q7/4r3

#2

11 + 8

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Sc4#
    • 1...Qc4
      • 2.Sxc4#
    • 1...Qa1
      • 2.Sc4#
    • 1...Qb2
      • 2.Sc4#
    • 1...Qd2
      • 2.Sc4#
    • 1...Qe2
      • 2.Sc4#
    • 1...Qf2
      • 2.Sc4#
    • 1...Qg2
      • 2.Sc4#
    • 1...Qh2
      • 2.Sc4#
    • 1...Qa3
      • 2.Sc4#
    • 1...Sde2
      • 2.Re4#
    • 1...Sb3
      • 2.Sc4#
    • 1...Sb5
      • 2.Sxc6#
    • 1...Sfe2
      • 2.Re4#
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qc7#
      • 1...Sdxe6
        • 2.d4#
      • 1...Sfxe6
        • 2.f4#
      • 1...Sb5
        • 2.Sxc6#
      • 1...Sf5
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 13
  • Sets
    • Q(b);N_GUARD::S(E)
    • Q(b);N_GUARD::S(E),XQ(b)
    • S(d);OGATE::R1(C)
    • S(d);S_CUTQ(b)::S(E)
    • S(d);N_GUARD,S_CUTB(c)::S(E),XP(h)
    • S(e);OGATE::R1(D)
  • Actual
    • Q(F);N_PINP(f)
    • Threat
      • QAB(F)
    • Vars
      • S(d);OGATE,P_SPINS(d),XP(H)::P(A)
      • S(e);OGATE,P_SPINS(e),XP(H)::P(B)
      • S(d);N_GUARD,S_CUTB(c)::S(E),XP(h)
      • S(d);SBLOCK::S(I)
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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).