MESON Chess Problem Database

Problem Display
PID: 229159 (2n5/3Qp1N1/Kp2r2r/4p1B1/1RN1k3/5b2/1p2q3/4R3 w - - 0 1)

ten Cate, Pieter

Brisbane Courier, 1926

2n5/3Qp1N1/Kp2r2r/4p1B1/1RN1k3/5b2/1p2q3/4R3

#2

7 + 10

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe1
      • 2.Sd2#
    • 1...Qe3
      • 2.Sxb2#
      • 2.Sd2#
      • 2.Sa3#
      • 2.Sxe3#
      • 2.Sa5#
      • 2.Sxb6#
      • 2.Rxe3#
    • 1...b5+
      • 2.Sb6#
  • Keys
    • 1.Rd1!
      • threat
        • 2.Qd5#
      • 1...Qxc4+
        • 2.Rxc4#
      • 1...b5+
        • 2.Sd6#
      • 1...Qxd1
        • 2.Sd2#
      • 1...Qd3
        • 2.Qxd3#
      • 1...Qd2
        • 2.Sxd2#
      • 1...Rd6
        • 2.Qf5#
      • 1...Sd6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • Q(b);N_PINS(C),N_SPINQ(b),XR(A)::R(B)+S(C),DCHECK
    • P(f);CHECK,N_PINS(C)::R(B)+S(C)
  • Actual
    • R(A);N_PINQ(b)
    • Threat
      • QAB1(F)
    • Vars
      • Q(b);CHECK,OGATE,P_SPINQ(b),XS(C)::R(B),XQ(b)
      • P(f);CHECK,N_PINS(C)::R(B)+S(C),DCHECK
      • Q(b);N_PINS(C),XR(A)::R(B)+S(C),DCHECK
      • Q(b);N_GUARD::QAB1(F),XQ(b)
      • Q(b);N_PINS(C)::R(B)+S(C),DCHECK,XQ(b)
      • R(g);OGATE::QAB1(F)
      • S(j);S_CUTR(g)::QAB(F)
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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).