MESON Chess Problem Database

Problem Display
PID: 18785 (2B5/2p2N2/Q6p/p2N1R1b/K2pk3/6p1/4pb2/4R2q w - - 0 1)

Kopernik, Dror

Rosenfelder, David

4th Place, Match: Israel - Sweden, 1958

2B5/2p2N2/Q6p/p2N1R1b/K2pk3/6p1/4pb2/4R2q

#2

7 + 10

3841 The Art of Israeli Chess Composition 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Qf3
      • 2.Re5#
    • 1...Be3
      • 2.Sf6#
    • 1...Bf3
      • 2.Re5#
    • 1...c5
      • 2.Sd6#
    • 1...c6
      • 2.Sd6#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Qd3#
        • 2.Qe6#
      • 1...Ke3
        • 2.Qd3#
      • 1...Bxf7
        • 2.Qd3#
      • 1...d3
        • 2.Qxd3#
      • 1...Qf3
        • 2.Qe6#
      • 1...c6
        • 2.Qd3#
      • 1...axb4!
    • 1.Rxe2+?
      • 1...Be3
        • 2.Sf6#
      • 1...Bxe2!
    • 1.Qxe2+?
      • 1...Be3
        • 2.Sf6#
        • 2.Re5#
      • 1...Bxe2!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qd3#
      • 1...Ke3
        • 2.Qd3#
      • 1...Kf3
        • 2.Qxe2#
      • 1...d3
        • 2.Qxd3#
      • 1...Qf3
        • 2.Qe6#
      • 1...Be3
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • Q(a);SBLOCK::R1(D)
    • B(c);N_SPINP(b),SBLOCK::S(C)
    • B(h);SBLOCK::R1(D)
    • P(j);N_GUARD::S(F)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • K(f);P-FLIGHT::QAR1(E)
        • B(h);XS(F)::QAB1(E)
        • P(e);::QAB1(E),XP(e)
        • Q(a);::QAR2(E)
        • P(j);::QAB1(E)
      • Refutation
        • P(g);XS(C)
    • Try
      • R(A);CHECK,XP(b)
      • Vars
        • B(c);P_SPINB(c)::S(C)
      • Refutation
        • B(h);XR(A)
    • Try
      • Q(E);CHECK,XP(b)
      • Refutation
        • B(h);P_SPINB(h),XQ(E)
  • Actual
    • S(C);
    • Threat
      • QAB1(E)
    • Vars
      • K(f);P-FLIGHT::QAR1(E)
      • K(f);N_SPINP(b),S_FLIGHT::QAB1(E),XP(b)
      • P(e);::QAB1(E),XP(e)
      • Q(a);SBLOCK::QAR2(E)
      • B(c);N_SPINP(b),SBLOCK::QAB(E)
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).