MESON Chess Problem Database

Problem Display
PID: 248941 (4R3/1K1N4/2p3p1/Rp1k4/B2b4/4rP2/2P1N1QB/8 w - - 0 1)

Blikeng, Bjarne

Al Hamishmar, 1947

(First published on Thu Feb 20 1947)

4R3/1K1N4/2p3p1/Rp1k4/B2b4/4rP2/2P1N1QB/8

#2

10 + 6

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe2
      • 2.Bb3#
    • 1...Rb3
      • 2.Bxb3#
    • 1...Rxf3
      • 2.Bb3#
    • 1...Re4
      • 2.Bb3#
    • 1...Re6
      • 2.Bb3#
    • 1...Re7
      • 2.Bb3#
    • 1...Rxe8
      • 2.Bb3#
    • 1...Bc3
      • 2.Bb3#
    • 1...c5
      • 2.Sb6#
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qxd4#
      • 1...Kc4
        • 2.Qxd4#
      • 1...Rxe2
        • 2.Bb3#
      • 1...Rxe8
        • 2.Bb3#
      • 1...Rd3
        • 2.Qe6#
      • 1...Re4
        • 2.Bb3#
      • 1...Re7
        • 2.Bb3#
      • 1...Ba1
        • 2.c4#
      • 1...Bb2
        • 2.c4#
      • 1...Bc3
        • 2.Bb3#
      • 1...Bc5
        • 2.Sf6#
      • 1...Be5
        • 2.Qe6#
      • 1...Bb6
        • 2.c4#
      • 1...Bf6
        • 2.c4#
      • 1...Ba7
        • 2.c4#
      • 1...Bg7
        • 2.c4#
      • 1...Bh8
        • 2.c4#
      • 1...c5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 3
  • Sets
    • R(a);N_GUARD,XS(B)::B(F)
    • R(a);N_GUARD::B(F),XR(a)
    • R(a);N_GUARD,P_SPINR(a),XP(E)::B(F)
    • R(a);N_GUARD::B(F)
    • R(a);N_GUARD,P_PINS(I)::B(F)
    • R(a);N_GUARD,XR(J)::B(F)
    • B(b);S_CUTR(a)::B(F)
    • P(e);N_SPINP(c),SBLOCK,S_CUTB(b)::S(I)
  • Actual
    • Q(C);
    • Threat
      • QAR1(C),XB(b)
    • Vars
      • K(d);N_SPINP(c),P_SPINB(b),S_FLIGHT::QAR1(C),XB(b)
      • R(a);N_GUARD,XS(B)::B(F)
      • R(a);N_GUARD,XR(J)::B(F)
      • R(a);N_GUARD::QAB1(C)
      • R(a);N_GUARD::B(F)
      • R(a);N_GUARD,P_PINS(I)::B(F)
      • B(b);::P(A)
      • B(b);S_CUTR(a)::B(F)
      • B(b);N_GUARD,N_SPINP(c),SBLOCK::S(I)
      • B(b);S_CUTR(a)::QAB1(C)
      • P(e);N_SPINP(c),SBLOCK,S_CUTB(b)::S(I)
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).