MESON Chess Problem Database

Problem Display
PID: 6979 (1B1Qn3/r1r4B/1R5b/2N1k2P/1p3N1R/6P1/b7/1nK5 w - - 0 1)

Novejarque Iranzo, Francisco

3rd Prize, Els Escacs a Catalunya, 1935

1B1Qn3/r1r4B/1R5b/2N1k2P/1p3N1R/6P1/b7/1nK5

#2

10 + 8

3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qxd5#
    • 1...Be6
      • 2.Rxe6#
    • 1...Bxf4+
      • 2.gxf4#
    • 1...Bg7
      • 2.Sd3#
    • 1...Bf8
      • 2.Sd3#
    • 1...Sd2
      • 2.Sd3#
    • 1...Sc3
      • 2.Sd3#
    • 1...Sd6
      • 2.Qxd6#
    • 1...Sf6
      • 2.Qxf6#
      • 2.Qd6#
    • 1...Sg7
      • 2.Qf6#
      • 2.Qd6#
    • 1...b3
      • 2.Re6#
      • 2.Qd5#
  • Tries
    • 1.Bxc7+?
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sxc7
        • 2.Sd3#
        • 2.Qf6#
        • 2.Qd6#
      • 1...Rxc7!
    • 1.Qg5+?
      • 1...Kd4
        • 2.Se2#
      • 1...Bxg5!
  • Keys
    • 1.Qd3!
      • threat
        • 2.Qe4#
        • 2.Qe3#
      • 1...Bxf4+
        • 2.gxf4#
      • 1...Be6
        • 2.Rxe6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Ra3
        • 2.Qe4#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sd2
        • 2.Sg6#
      • 1...Sc3
        • 2.Sd7#
      • 1...Sf6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD::QAR1(J),XB(b)
    • B(b);N_GUARD::R1(G),XB(b)
    • B(e);CHECK,OGATE,P_PINS(E),XS(C)::P(B),XB(e)
    • B(e);N_PINS(C),P_PINS(E)::S(C)
    • S(a);N_PINS(C),P_PINS(E)::S(C)
    • S(a);::S(E)
    • S(h);N_GUARD,N_SPINR(g)::QAB1(J),XS(h)
  • Tries
    • Try
      • B(I);CHECK,XR(g)
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAB1(J),XS(h)
      • Refutation
        • R(f);XB(I)
    • Try
      • Q(J);CHECK,N_SPINS(C),P_SPINS(E)
      • Vars
        • K(d);N_SPINR(g),S_FLIGHT::R(D)+S(C),DCHECK
      • Refutation
        • B(e);N_PINS(E),P_PINS(C),XQ(J)
  • Actual
    • Q(J);
    • Threat
      • DUALS(2)
    • Vars
      • B(e);CHECK,OGATE,P_PINS(E),XS(C)::P(B),XB(e)
      • B(b);N_GUARD::R1(G),XB(b)
      • S(h);N_GUARD,N_SPINR(g)::QAB1(J),XS(h)
      • R(f);::QAR1(J)
      • B(b);N_GUARD::QAR1(J),XB(b)
      • S(a);N_PINS(C),P_PINS(E)::S(C)
      • S(a);::S(E)
      • S(h);N_GUARD::QAB1(J)
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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).