MESON Chess Problem Database

Problem Display
PID: 221829 (8/8/4p3/P3K3/8/7N/2pkp3/Q3R3 w - - 0 1)

McArthur, Sgt Maj William

Leeds Mercury Weekly Supplement, 1882

(First published on Sat Mar 18 1882)

8/8/4p3/P3K3/8/7N/2pkp3/Q3R3

#2

5 + 4

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qd4#
    • 1...Ke3
      • 2.Qc3#
  • Tries
    • 1.Kd4?
      • threat
        • 2.Qc3#
        • 2.Qc1#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1S
        • 2.Qc3#
        • 2.Qxc1#
      • 1...c1B
        • 2.Qc3#
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...e5+!
    • 1.Ke4?
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1S
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...e5!
    • 1.Sf2?
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1S
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...Ke3!
    • 1.Sf4?
      • threat
        • 2.Rxe2#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1S
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...Ke3!
  • Keys
    • 1.Qb2!
      • 1...Kxe1
        • 2.Qc1#
      • 1...Kd3
        • 2.Qd4#
      • 1...Ke3
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR1(A)
    • K(b);P_SPINP(c),S_FLIGHT::QAR2(A)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAB1(A),XQ(a)
        • P(a);::QAB1(A),XR(a)
      • Refutation
        • P(d);CHECK
    • Try
      • K(E);P-FLIGHT
      • Vars
        • P(a);::QAB1(A),XQ(a)
        • P(a);::QAB1(A),XS(a)
        • P(a);::QAB1(A),XB(a)
        • P(a);::QAB1(A),XR(a)
      • Refutation
        • P(d);
    • Try
      • S(C);
      • Vars
        • P(a);::QAB1(A),XQ(a)
        • P(a);::QAB1(A),XS(a)
        • P(a);::QAB1(A),XB(a)
        • P(a);::QAB1(A),XR(a)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT
    • Try
      • S(C);
      • Threat
        • R1(B),XP(c)
      • Vars
        • P(a);::QAB1(A),XQ(a)
        • P(a);::QAB1(A),XS(a)
        • P(a);::QAB1(A),XB(a)
        • P(a);::QAB1(A),XR(a)
      • Refutation
        • K(b);P_SPINP(c),S_FLIGHT
  • Actual
    • Q(A);P_PINP(a)
    • Vars
      • K(b);N_SPINP(a),S_FLIGHT,XR(B)::QAR2(A)
      • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
      • K(b);N_SPINP(a),P_SPINP(c),S_FLIGHT::QAR2(A)
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).