MESON Chess Problem Database

Problem Display
PID: 250741 (8/2b5/8/3K4/7p/BPpB1Q1r/q2kP1Np/1RNrR2b w - - 0 1)

Waterhouse, T

Manchester Evening News, 1939

(First published on Sat Oct 14 1939)

8/2b5/8/3K4/7p/BPpB1Q1r/q2kP1Np/1RNrR2b

#2

10 + 9

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb3+
      • 2.Sxb3#
    • 1...Rxc1
      • 2.Bxc1#
    • 1...Bg3
      • 2.Qe3#
    • 1...c2
      • 2.Bb4#
  • Tries
    • 1.Qf4+?
      • 1...Re3
        • 2.Qxe3#
      • 1...Bxf4!
    • 1.e4?
      • threat
        • 2.Rxd1#
        • 2.Re2#
        • 2.Qxd1#
        • 2.Qe2#
        • 2.Qf2#
      • 1...Qxb3+
        • 2.Sxb3#
      • 1...Rxc1
        • 2.Bxc1#
        • 2.Qe2#
      • 1...Rxf3
        • 2.Re2#
      • 1...c2
        • 2.Bb4#
      • 1...Qc2
        • 2.Re2#
        • 2.Qe2#
        • 2.Qf2#
      • 1...Bg3
        • 2.Rxd1#
        • 2.Re2#
        • 2.Qxd1#
        • 2.Qe2#
        • 2.Qe3#
      • 1...Bb6
        • 2.Rxd1#
        • 2.Re2#
        • 2.Qxd1#
        • 2.Qe2#
      • 1...Rxe1!
  • Keys
    • 1.Qf2!
      • threat
        • 2.e3#
        • 2.e4#
      • 1...Qxb3+
        • 2.Sxb3#
      • 1...Rxd3+
        • 2.exd3#
      • 1...Bxg2+
        • 2.e4#
      • 1...Rxc1
        • 2.Bxc1#
      • 1...Rxe1
        • 2.Qxe1#
      • 1...c2
        • 2.Bb4#
      • 1...Re3
        • 2.Qxe3#
      • 1...Rf3
        • 2.exf3#
      • 1...Bg3
        • 2.Qe3#
      • 1...Bb6
        • 2.e3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • Q(c);CHECK,XP(G)::S(B),XQ(c)
    • R(a);OGATE,XS(B)::B(F),XR(a)
    • B(i);S_CUTR(g)::QAB1(I)
    • P(f);OGATEB::B(F)
  • Tries
    • Try
      • Q(I);CHECK,P_SPINS(E)
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::QAB1(I),XR(g)
      • Refutation
        • B(i);XQ(I)
    • Try
      • P(D);
      • Threat
        • DUALS(5)
      • Vars
        • Q(c);CHECK,XP(G)::S(B),XQ(c)
        • R(g);XQ(I)::R1(C)
        • P(f);OGATEB::B(F)
      • Refutation
        • R(a);XR(C)
  • Actual
    • Q(I);P_SPINS(E)
    • Threat
      • DUALS(2)
    • Vars
      • Q(c);CHECK,XP(G)::S(B),XQ(c)
      • R(g);CHECK,OGATE,XB(H)::QAR(I)+P(D),XR(g)
      • B(b);CHECK,XS(E)::QAR(I)+P(D)
      • R(a);OGATE,XS(B)::B(F),XR(a)
      • R(a);OGATE,XR(C)::QAB1(I),XR(a)
      • P(f);OGATEB::B(F)
      • R(g);N_GUARD::QAB1(I),XR(g)
      • R(g);N_PINS(E),OGATE::QAR(I)+P(D),XR(g)
      • B(i);S_CUTR(g)::QAB1(I)
      • B(i);::QAR(I)+P(D)
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).