MESON Chess Problem Database

Problem Display
PID: 263901 (K3b3/3N4/8/2B1r1Rn/p3k1BQ/3npN2/2P1p2b/7q w - - 0 1)

Foschini, Ettore

3rd Prize, Lo Scacchistica di Roma, 1934

K3b3/3N4/8/2B1r1Rn/p3k1BQ/3npN2/2P1p2b/7q

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Bxh5#
    • 1...Sdf4
      • 2.Rxe5#
    • 1...Shf4
      • 2.Sf6#
  • Tries
    • 1.Sf6+?
      • 1...Kf4
        • 2.Bxh5#
      • 1...Sxf6!
    • 1.Bxh5+?
      • 1...Bf4
        • 2.Sf6#
      • 1...Sf4
        • 2.Sf6#
        • 2.Rxe5#
      • 1...Kd5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Bf3#
      • 1...Kf4+
        • 2.Bf3#
      • 1...Kd5
        • 2.Be6#
      • 1...Qf3
        • 2.Bxf3#
      • 1...Bf4
        • 2.Qxh1#
      • 1...Sdf4
        • 2.Rxe5#
      • 1...Shf4
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(g);N_GUARD,P-FLIGHT,P_PINS(B),S_CUTB(c),S_CUTS(d)::QAR(D)+B(C),XS(i)
    • S(d);N_GUARD,SBLOCK,S_CUTB(c)::R1(F),XR(h)
    • S(i);N_GUARD,SBLOCK::S(G)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(g);P-FLIGHT,P_PINS(B)::QAR(D)+B(C),XS(i)
      • Refutation
        • S(i);XS(G)
    • Try
      • B(C);CHECK,XS(i)
      • Vars
        • B(c);P_SPINB(c)::S(G)
      • Refutation
        • K(g);P_SPINR(h),S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • QAR(D)+B(C),DCHECK
    • Vars
      • K(g);CHECK,P-FLIGHT::QAR(D)+B(C)
      • K(g);P_SPINR(h),S_CUTB(c),S_CUTS(d),S_CUTS(i),S_FLIGHT::B(C)
      • Q(a);::QAR(D)+B(C),DCHECK,XQ(a)
      • B(c);OGATE,SBLOCK::QAB(D),XQ(a)
      • S(d);N_GUARD,SBLOCK,S_CUTB(c)::R1(F),XR(h)
      • S(i);N_GUARD,SBLOCK::S(G)
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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).