MESON Chess Problem Database

Problem Display
PID: 114157 (B6B/1R4nK/3pN3/2pN1RP1/2Pnk1pP/6P1/1QP2P2/8 w - - 0 1)

Stocchi, Ottavio

La Settimana Enigmistica, 1934

B6B/1R4nK/3pN3/2pN1RP1/2Pnk1pP/6P1/1QP2P2/8

#2

14 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc2
      • 2.Qxc2#
    • 1...Sb3
      • 2.Rf4#
    • 1...Sf3
      • 2.Rf4#
    • 1...Sb5
      • 2.Rf4#
    • 1...Sc6
      • 2.Rf4#
    • 1...Se8
      • 2.Rf4#
  • Tries
    • 1.Sxd4?
      • threat
        • 2.Sf6#
      • 1...Sxf5
        • 2.Sc3#
      • 1...Sh5
        • 2.Sc3#
        • 2.Re7#
      • 1...Se8
        • 2.Sc3#
        • 2.Rf4#
        • 2.Re7#
      • 1...cxd4!
    • 1.Rbf7?
      • threat
        • 2.Sc3#
      • 1...Sxc2
        • 2.Qxc2#
      • 1...Sdxf5
        • 2.Sf6#
      • 1...Sdxe6!
    • 1.Qc3?
      • threat
        • 2.Qd3#
      • 1...Sxc2
        • 2.Rf4#
        • 2.Qxc2#
      • 1...Sdxf5
        • 2.Sf6#
      • 1...Kxf5!
    • 1.Qxd4+?
      • 1...Kxf5
        • 2.Sxg7#
      • 1...cxd4!
  • Keys
    • 1.Re7!
      • 1...Kxf5
        • 2.Sxg7#
      • 1...Sxc2
        • 2.Qxc2#
      • 1...Sdxf5
        • 2.Sf6#
      • 1...Sdxe6
        • 2.Rf4#
      • 1...Sgxf5
        • 2.Sc3#
      • 1...Sgxe6
        • 2.Rf4#
      • 1...Se2
        • 2.Sxg7#
      • 1...Sb3
        • 2.Sxg7#
        • 2.Rf4#
      • 1...Sf3
        • 2.Rf4#
      • 1...Sb5
        • 2.Sxg7#
        • 2.Rf4#
      • 1...Sc6
        • 2.Rf4#
      • 1...Sh5
        • 2.Sxd4#
      • 1...Se8
        • 2.Sxd4#
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 3
  • Sets
    • S(a);OGATE,XP(B)::QAB(A),XS(a)
    • S(a);::R1(H)
    • S(f);::R1(H)
  • Tries
    • Try
      • S(J);XS(a)
      • Threat
        • S(G)
      • Vars
        • S(f);XR(H)::S(G)
      • Refutation
        • P(d);XS(J)
    • Try
      • R(K);
      • Threat
        • B(M)+S(G),DCHECK
      • Vars
        • S(a);OGATE,XP(B)::QAB(A),XS(a)
        • S(a);SBLOCK,XR(H)::B(M)+S(G),DCHECK
      • Refutation
        • S(a);XS(J)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • S(a);SBLOCK,XR(H)::S(G)
      • Refutation
        • K(b);S_FLIGHT,XR(H)
    • Try
      • Q(A);CHECK,XS(a)
      • Vars
        • K(b);S_FLIGHT,XR(H)::S(J),XS(f)
      • Refutation
        • P(d);XQ(A)
  • Actual
    • R(K);
    • Vars
      • K(b);S_FLIGHT,XR(H)::S(J),XS(f)
      • S(a);OGATE,XP(B)::QAB(A),XS(a)
      • S(a);SBLOCK,XR(H)::B(M)+S(G),DCHECK
      • S(a);P_SPINS(a),XS(J)::R1(H)
      • S(f);SBLOCK,XR(H)::B(M)+S(G),DCHECK
      • S(f);P_SPINS(f),XS(J)::R1(H)
      • S(a);N_GUARD::R(K)+S(J),XS(f)
      • S(a);::R1(H)
      • S(f);N_GUARD::R(K)+S(J),XS(a)
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).