MESON Chess Problem Database

Problem Display
PID: 21817 (4RK1Q/8/3N1N2/3p4/3q4/R1Bk4/6b1/3B4 w - - 0 1)

Bettmann, Henry Wald

1st HM.=, Good Companions (March Meredith Ty.), 1921

4RK1Q/8/3N1N2/3p4/3q4/R1Bk4/6b1/3B4

#2

8 + 4

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Tries
    • 1.Bxd4+?
      • 1...Kxd4
        • 2.Sfe4#
        • 2.Sd7#
      • 1...Kd2!
    • 1.Qh6?
      • threat
        • 2.Qd2#
      • 1...Qxf6+
        • 2.Bxf6#
      • 1...Qxc3
        • 2.Qe3#
      • 1...Qf2
        • 2.Ba1#
        • 2.Bb2#
        • 2.Be5#
      • 1...Qe3
        • 2.Rxe3#
        • 2.Qxe3#
      • 1...Qf4!
  • Keys
    • 1.Sfe4!
      • threat
        • 2.Bxd4#
        • 2.Qxd4#
      • 1...Qf2+
        • 2.Sxf2#
        • 2.Bf6#
      • 1...Qf6+
        • 2.Bxf6#
      • 1...Qg7+
        • 2.Bxg7#
      • 1...Qxh8+
        • 2.Bxh8#
      • 1...Ke3
        • 2.Bd2#
      • 1...Qxc3
        • 2.Rxc3#
        • 2.Qxc3#
      • 1...Qxe4
        • 2.Be1#
        • 2.Bb4#
        • 2.Ba5#
      • 1...Bxe4
        • 2.Qxd4#
      • 1...dxe4
        • 2.Qxd4#
      • 1...Qg1
        • 2.Ba1#
        • 2.Be1#
        • 2.Bb2#
        • 2.Bd2#
        • 2.Bb4#
        • 2.Bd4#
        • 2.Ba5#
        • 2.Be5#
        • 2.Bf6#
        • 2.Bg7#
      • 1...Qe3
        • 2.Ba1#
        • 2.Be1#
        • 2.Bb2#
        • 2.Bd2#
        • 2.Bb4#
        • 2.Bd4#
        • 2.Ba5#
        • 2.Be5#
        • 2.Bf6#
        • 2.Bg7#
      • 1...Qc5
        • 2.Sxc5#
      • 1...Qe5
        • 2.Bxe5#
      • 1...Qb6
        • 2.Bb4#
      • 1...Qa7
        • 2.Ba5#
      • 1...Qa4
        • 2.Sf2#
        • 2.Sc5#
      • 1...Qb4
        • 2.Sf2#
        • 2.Bxb4#
      • 1...Qc4
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(C);CHECK,XQ(c)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Vars
        • Q(c);CHECK,OGATE,XS(E)::R(B)+B(C),XQ(c)
        • Q(c);N_GUARD,P_SPINQ(c),XB(C)::QAR1(H)
      • Refutation
        • Q(c);P_PINS(E)
  • Actual
    • S(E);
    • Threat
      • DUALS(2)
    • Vars
      • Q(c);CHECK,OGATE::R(B)+B(C),XQ(c)
      • Q(c);CHECK,OGATE,XQ(H)::R(B)+B(C),XQ(c)
      • K(b);P-FLIGHT::R(B)+B(C),DCHECK
      • B(a);XS(E)::QAR1(H),XQ(c)
      • P(d);XS(E)::QAR1(H),XQ(c)
      • Q(c);N_GUARD,P_PINS(D)::S(E),XQ(c)
      • Q(c);OGATE::R(B)+B(C),XQ(c)
      • Q(c);N_GUARD::R(B)+B(C)
      • Q(c);N_GUARD::S(E)
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).