MESON Chess Problem Database

Problem Display
PID: 222725 (8/8/1K1pq3/3RrRpP/4k3/2p1p1p1/n1P3P1/1b2Qn2 w - - 0 1)

Cook, Eugene Beauharnais

Charleston Sunday News, 1884

8/8/1K1pq3/3RrRpP/4k3/2p1p1p1/n1P3P1/1b2Qn2

#2

7 + 11

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Rd4+?
      • 1...Kxf5
        • 2.Qxf1#
      • 1...Kxd4!
    • 1.Qd1?
      • threat
        • 2.Qf3#
        • 2.Qd3#
      • 1...Kxf5
        • 2.Qf3#
      • 1...Qxd5
        • 2.Qg4#
      • 1...Qxf5
        • 2.Rd4#
        • 2.Qd4#
      • 1...Rxd5
        • 2.Qg4#
      • 1...Rxf5
        • 2.Qd4#
      • 1...Bxc2
        • 2.Qf3#
      • 1...e2
        • 2.Qd3#
      • 1...Sh2
        • 2.Qd3#
      • 1...Sc1
        • 2.Qf3#
      • 1...Sb4
        • 2.Qf3#
      • 1...g4
        • 2.Qd3#
      • 1...Sd2!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qd3#
        • 2.Qf3#
      • 1...Kxd5
        • 2.Qd3#
      • 1...Kxf5
        • 2.Qf3#
      • 1...Qxd5
        • 2.Qg4#
      • 1...Qxf5
        • 2.Qc4#
      • 1...Rxd5
        • 2.Qg4#
      • 1...Rxf5
        • 2.Qc4#
      • 1...Bxc2
        • 2.Qf3#
      • 1...Sd2
        • 2.Qd3#
      • 1...Sh2
        • 2.Qd3#
      • 1...Sc1
        • 2.Qf3#
      • 1...Sb4
        • 2.Qf3#
      • 1...g4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(g);N_SPINP(e),S_FLIGHT,XR(E)::QAR(A),XS(b)
      • Refutation
        • K(g);N_SPINP(e),P-FLIGHT,XR(D)
    • Try
      • Q(A);N_PINP(e)
      • Threat
        • DUALS(2)
      • Vars
        • K(g);P_SPINR(h),S_FLIGHT,XR(E)::QAR2(A)
        • Q(k);SBLOCK,XR(D)::QAR2(A)
        • R(h);XR(D)::QAR2(A)
        • R(h);XR(E)::QAR1(A)
        • B(a);XP(B)::QAB1(A)
        • P(e);::QAB1(A)
        • S(b);::QAB1(A)
        • S(c);::QAB1(A)
        • P(i);::QAB1(A)
      • Refutation
        • S(b);
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(g);N_SPINP(e),P_SPINR(h),S_FLIGHT,XR(D)::QAR2(A)
      • K(g);N_SPINP(e),P_SPINR(h),S_FLIGHT,XR(E)::QAR2(A)
      • Q(k);SBLOCK,XR(D)::QAR2(A)
      • Q(k);SBLOCK,XR(E)::QAR2(A)
      • R(h);XR(D)::QAR2(A)
      • R(h);XR(E)::QAR2(A)
      • B(a);XP(B)::QAB1(A)
      • S(b);::QAB1(A)
      • S(c);::QAB1(A)
      • P(i);::QAB1(A)
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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).