MESON Chess Problem Database

Problem Display
PID: 67656 (K1B5/Q5N1/R2P4/1p1k1p1b/Rn6/b1pp4/p1p4B/8 w - - 0 1)

Stocchi, Ottavio

4th Comm., BCF, 1955-1956

K1B5/Q5N1/R2P4/1p1k1p1b/Rn6/b1pp4/p1p4B/8

#2

8 + 10

5407 Selected Stocchi (II) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Be6#
    • 1...Ke4
      • 2.Bb7#
    • 1...Sxa6
      • 2.Bb7#
    • 1...Sc6
      • 2.Be6#
  • Tries
    • 1.Se6?
      • threat
        • 2.Qd4#
      • 1...Ke4
        • 2.Bb7#
      • 1...Sxa6
        • 2.Qb7#
      • 1...Sc6
        • 2.Sc7#
      • 1...Kc4!
    • 1.Bb7+?
      • 1...Sc6
        • 2.Bxc6#
        • 2.Rd4#
        • 2.Qd4#
      • 1...Kc4!
    • 1.Rxb4?
      • threat
        • 2.Be6#
        • 2.Bb7#
        • 2.Rd4#
        • 2.Qd4#
      • 1...f4
        • 2.Qd4#
      • 1...Bf7
        • 2.Bb7#
        • 2.Rd4#
        • 2.Qd4#
      • 1...Be8
        • 2.Be6#
        • 2.Rd4#
        • 2.Qd4#
      • 1...Bxb4!
    • 1.Qe3?
      • threat
        • 2.Be6#
      • 1...Kc4
        • 2.Be6#
      • 1...Sxa6
        • 2.Bb7#
      • 1...Bf7!
    • 1.Qc5+?
      • 1...Ke4
        • 2.Bb7#
      • 1...Kxc5!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Qd4#
      • 1...Kc4
        • 2.Be6#
      • 1...Ke4
        • 2.Qb7#
      • 1...Sxa6
        • 2.Se7#
      • 1...Sc6
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(h);P_SPINS(f),S_FLIGHT::B(H)
    • S(f);N_GUARD,XR(C)::B(H)
    • S(f);::B(H)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(E)
      • Vars
        • K(h);P_SPINS(f),S_FLIGHT::B(H)
        • S(f);N_GUARD,XR(C)::QAB(E)
        • S(f);::S(F)
      • Refutation
        • K(h);P_SPINS(f),S_FLIGHT
    • Try
      • B(H);CHECK
      • Refutation
        • K(h);P_SPINS(f),S_FLIGHT
    • Try
      • R(B);XS(f)
      • Threat
        • DUALS(4)
      • Vars
        • P(i);::QAR1(E)
      • Refutation
        • B(c);XR(B)
    • Try
      • Q(E);
      • Threat
        • B(H)
      • Vars
        • K(h);P_SPINS(f),S_FLIGHT::B(H)
        • S(f);N_GUARD,XR(C)::B(H)
      • Refutation
        • B(j);
    • Try
      • Q(E);CHECK
      • Vars
        • K(h);P_SPINS(f),S_FLIGHT::B(H)
      • Refutation
        • K(h);P-FLIGHT,XQ(E)
  • Actual
    • S(F);XP(i)
    • Threat
      • QAR1(E)
    • Vars
      • K(h);P_SPINS(f),S_FLIGHT::B(H)
      • K(h);P_SPINS(f),S_FLIGHT::QAB(E)
      • S(f);XR(C)::S(F)
      • S(f);::S(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).