MESON Chess Problem Database

Problem Display
PID: 263589 (3rB2B/1Q1N4/n1n1b3/2p3RK/p1k3p1/b4R2/2rpPN2/8 w - - 0 1)

Foschini, Ettore

4th Prize, Ajan Sana, 1932

3rB2B/1Q1N4/n1n1b3/2p3RK/p1k3p1/b4R2/2rpPN2/8

#2

9 + 11

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Rc3#
    • 1...Rb2
      • 2.Rc3#
    • 1...Rc3
      • 2.Rxc3#
    • 1...Bb4
      • 2.Qxa6#
    • 1...Bf7+
      • 2.Bxf7#
    • 1...Sab4
      • 2.Rxc5#
    • 1...Scb4
      • 2.Sb6#
    • 1...Sd4
      • 2.Se5#
    • 1...Sa5
      • 2.Rf4#
    • 1...Sa7
      • 2.Rf4#
    • 1...Se7
      • 2.Rf4#
    • 1...Sb8
      • 2.Rf4#
  • Tries
    • 1.Se5+?
      • 1...Kd4
        • 2.Rd3#
      • 1...Kd5
        • 2.Rd3#
      • 1...Sxe5!
    • 1.Rxg4+?
      • 1...Kd5
        • 2.Rd3#
      • 1...Sd4
        • 2.Se5#
      • 1...Bxg4+!
  • Keys
    • 1.Sd1!
      • threat
        • 2.Se3#
      • 1...Bf7+
        • 2.Bxf7#
      • 1...Se5
        • 2.Rf4#
      • 1...Rc3
        • 2.Rxc3#
      • 1...Bb4
        • 2.Qxa6#
      • 1...Sab4
        • 2.Rxc5#
      • 1...Scb4
        • 2.Sb6#
      • 1...Sd4
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(a);N_GUARD::R1(C)
    • R(a);N_GUARD::R1(C),XR(a)
    • B(c);SBLOCK::QAB(F),XS(h)
    • B(j);CHECK,OGATEB::B(H),XB(j)
    • S(h);N_GUARD,S_CUTB(c)::R1(D),XP(g)
    • S(i);SBLOCK::S(G)
    • S(i);N_GUARD,SBLOCK::S(G)
    • S(i);N_GUARD::R(C)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(e);P-FLIGHT,S_CUTS(i)::R1(C)
        • K(e);P_SPINS(i),S_FLIGHT::R(C)
      • Refutation
        • S(i);XS(G)
    • Try
      • R(D);CHECK,XP(f)
      • Vars
        • K(e);P_SPINS(i),S_CUTB(j),S_FLIGHT::R(C)
        • S(i);P_SPINS(i)::S(G)
      • Refutation
        • B(j);CHECK,XR(D)
  • Actual
    • S(B);
    • Threat
      • S(B)
    • Vars
      • B(j);CHECK,OGATEB::B(H),XB(j)
      • S(i);N_GUARD::R(C)
      • R(a);N_GUARD::R1(C),XR(a)
      • B(c);SBLOCK::QAB(F),XS(h)
      • S(h);N_GUARD,S_CUTB(c)::R1(D),XP(g)
      • S(i);SBLOCK::S(G)
      • 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).