MESON Chess Problem Database

Problem Display
PID: 195147 (1Kn5/1pQ1p3/7N/3p2p1/4kq1R/2P3R1/1pr1B1P1/2b1n1B1 w - - 0 1)

Berkel, Adrian V

Brisbane Courier, 1918

1Kn5/1pQ1p3/7N/3p2p1/4kq1R/2P3R1/1pr1B1P1/2b1n1B1

#2

9 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Re3#
    • 1...Be3
      • 2.Rxe3#
    • 1...Sxg2
      • 2.Bd3#
    • 1...Sd3
      • 2.Bxd3#
      • 2.Bf3#
    • 1...Sf3
      • 2.gxf3#
    • 1...Sd6
      • 2.Qxe7#
    • 1...e5
      • 2.Qh7#
  • Tries
    • 1.Rxg5?
      • threat
        • 2.Re5#
        • 2.Qe5#
      • 1...Qxh4
        • 2.Qe5#
      • 1...Qg4
        • 2.Qe5#
      • 1...Sd3
        • 2.Bf3#
      • 1...Sf3
        • 2.gxf3#
      • 1...Sd6
        • 2.Qxe7#
      • 1...e5
        • 2.Rxe5#
        • 2.Qxe5#
        • 2.Qh7#
      • 1...Rxe2!
  • Keys
    • 1.Rd3!
      • threat
        • 2.Rd4#
      • 1...Sxd3
        • 2.Bf3#
      • 1...Sd6
        • 2.Qxe7#
      • 1...d4
        • 2.Rxd4#
      • 1...Rd2
        • 2.Re3#
      • 1...Be3
        • 2.Rxe3#
      • 1...Sf3
        • 2.gxf3#
      • 1...e5
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(d);S_CUTB(a)::R1(E)
    • B(a);N_GUARD::R1(E),XB(a)
    • S(b);N_GUARD,XP(C)::B(B)
    • S(b);OGATE::P(C),XS(b)
    • S(k);N_PINQ(H)::QAR(H),XP(j)
    • P(j);N_PINQ(H),SBLOCK::QAB(H)
  • Tries
    • Try
      • R(E);XP(h)
      • Threat
        • DUALS(2)
      • Vars
        • Q(f);N_PINQ(H),N_SPINQ(f),XR(F)::QAR1(H)
        • Q(f);N_PINQ(H)::QAR1(H)
        • S(b);N_GUARD,SBLOCK::B(B)
        • S(b);OGATE::P(C),XS(b)
        • S(k);N_PINQ(H)::QAR(H),XP(j)
      • Refutation
        • R(d);XB(B)
  • Actual
    • R(E);
    • Threat
      • R1(E)
    • Vars
      • S(b);N_GUARD,SBLOCK,XR(E)::B(B)
      • S(k);N_PINQ(H)::QAR(H),XP(j)
      • P(g);::R1(E),XP(g)
      • R(d);S_CUTB(a)::R1(E)
      • B(a);N_GUARD::R1(E),XB(a)
      • S(b);OGATE::P(C),XS(b)
      • P(j);N_PINQ(H),SBLOCK::QAB(H)
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).