MESON Chess Problem Database

Problem Display
PID: 11813 (8/1N3R1q/5BP1/nKPkr3/1QpPN1P1/1p2R3/8/r6B w - - 0 1)

Lender, Baruch

3rd Comm., KeyStip 05. Ty., 1972

8/1N3R1q/5BP1/nKPkr3/1QpPN1P1/1p2R3/8/r6B

#2

12 + 7

3841 The Art of Israeli Chess Composition 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qd2#
    • 1...Ke6
      • 2.Sg5#
    • 1...Rf5
      • 2.Sc3#
    • 1...Rg5
      • 2.Sc3#
    • 1...Rh5
      • 2.Sc3#
    • 1...Re6
      • 2.Sc3#
    • 1...Re7
      • 2.Sc3#
    • 1...Re8
      • 2.Sc3#
    • 1...Sc6
      • 2.Qxc4#
    • 1...Sxb7
      • 2.Qxc4#
  • Tries
    • 1.Sc3+?
      • 1...Ke6
        • 2.Sd8#
        • 2.Bd5#
        • 2.Rxe5#
        • 2.d5#
      • 1...Kxd4!
    • 1.Sg5+?
      • 1...Kxd4
        • 2.Qd2#
        • 2.Qc3#
      • 1...Qxh1
        • 2.Rd7#
      • 1...Re4
        • 2.Bxe4#
      • 1...Rxh1!
    • 1.Rd7+?
      • 1...Ke6
        • 2.Rd6#
      • 1...Qxd7+!
  • Keys
    • 1.c6!
      • threat
        • 2.Qd6#
      • 1...Kxd4+
        • 2.Qc5#
      • 1...Ke6+
        • 2.Sec5#
      • 1...Sxb7
        • 2.Qxc4#
      • 1...Re6
        • 2.Sc3#
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • K(e);OGATEB,P-FLIGHT,P_PINP(H),P_SPINP(c),P_SPINR(f),XP(D)::QAR2(C)
    • K(e);P_PINP(H),S_FLIGHT::S(E)
    • R(f);::B(A)+S(E),DCHECK
    • S(d);N_GUARD::QAB1(C),XP(c)
    • S(d);N_GUARD,XS(K)::QAB1(C),XP(c)
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • K(e);P-FLIGHT,P_PINP(H),P_SPINP(c),P_SPINR(f),XP(D)
    • Try
      • S(E);CHECK
      • Vars
        • Q(g);XB(A)::R(L)
        • R(f);N_GUARD,P_SPINR(f)::B(A),XR(f)
      • Refutation
        • R(a);XB(A)
    • Try
      • R(L);CHECK
      • Vars
        • K(e);P_PINP(H),S_FLIGHT::R1(L)
      • Refutation
        • Q(g);CHECK,XR(L)
  • Actual
    • P(H);
    • Threat
      • QAR1(C)
    • Vars
      • K(e);CHECK,P-FLIGHT,P_SPINP(c),P_SPINR(f),XP(D)::QAB1(C)
      • K(e);CHECK,S_FLIGHT::S(E)
      • S(d);N_GUARD,XS(K)::QAB1(C),XP(c)
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).