MESON Chess Problem Database

Problem Display
PID: 65288 (8/4p3/4K1Q1/3p2p1/3P1N1b/2p2k1r/2P1Nn1p/2BB1R1R w - - 0 1)

Barry, John Finan

Good Companions (August), 1921

8/4p3/4K1Q1/3p2p1/3P1N1b/2p2k1r/2P1Nn1p/2BB1R1R

#2

10 + 9

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Qh5#
    • 1...Rg3
      • 2.Sg1#
      • 2.Sxc3#
    • 1...Bg3
      • 2.Sg1#
      • 2.Sxc3#
    • 1...gxf4
      • 2.Sg1#
      • 2.Sxc3#
      • 2.Sxf4#
    • 1...g4
      • 2.Qd3#
  • Tries
    • 1.Ke5?
      • 1...Kg4
        • 2.Qh5#
      • 1...gxf4
        • 2.Sg1#
        • 2.Sxc3#
        • 2.Sxf4#
      • 1...Rg3
        • 2.Sg1#
        • 2.Sxc3#
      • 1...Bg3
        • 2.Sg1#
        • 2.Sxc3#
      • 1...g4
        • 2.Qd3#
      • 1...e6!
    • 1.Sh5?
      • threat
        • 2.Sef4#
      • 1...Kg2
        • 2.Sef4#
      • 1...Kg4!
    • 1.Bd2?
      • 1...Kg4
        • 2.Qh5#
      • 1...gxf4
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sxc3#
        • 2.Sxf4#
      • 1...Rg3
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sxc3#
      • 1...Bg3
        • 2.Sc1#
        • 2.Sg1#
        • 2.Sxc3#
      • 1...g4
        • 2.Qd3#
      • 1...cxd2!
    • 1.Rxh2?
      • 1...Kg4
        • 2.Qh5#
      • 1...gxf4
        • 2.Sg1#
        • 2.Sxc3#
        • 2.Sg3#
        • 2.Sxf4#
        • 2.Qg2#
      • 1...Rg3
        • 2.Sg1#
        • 2.Sxc3#
      • 1...Bg3
        • 2.Sg1#
        • 2.Sxc3#
      • 1...g4
        • 2.Qd3#
      • 1...Rxh2!
    • 1.Qf5?
      • 1...Rg3
        • 2.Sg1#
        • 2.Sxc3#
      • 1...Bg3
        • 2.Sg1#
        • 2.Sxc3#
      • 1...g4
        • 2.Qd3#
        • 2.Qxd5#
      • 1...gxf4!
    • 1.Qh5+?
      • 1...g4
        • 2.Qxd5#
      • 1...Ke4!
    • 1.Qh7?
      • 1...Kg4
        • 2.Qh5#
      • 1...Rg3
        • 2.Sg1#
        • 2.Sxc3#
      • 1...Bg3
        • 2.Sg1#
        • 2.Sxc3#
      • 1...g4
        • 2.Qd3#
      • 1...gxf4!
    • 1.Qxg5?
      • threat
        • 2.Sxc3#
        • 2.Sg3#
        • 2.Qg2#
      • 1...Ke4
        • 2.Qxd5#
      • 1...Rg3
        • 2.Sxc3#
        • 2.Sxg3#
      • 1...Bg3
        • 2.Sxc3#
        • 2.Sxg3#
      • 1...Bxg5!
  • Keys
    • 1.Sd3!
      • 1...Kg2
        • 2.Se1#
      • 1...Kg4
        • 2.Se5#
      • 1...Rg3
        • 2.Sef4#
      • 1...Bg3
        • 2.Sef4#
      • 1...g4
        • 2.Se1#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINS(a),P_SPINP(h),S_FLIGHT::QAB1(J)
    • P(h);SBLOCK::QAR2(J)
  • Tries
    • Try
      • K(I);P-FLIGHT
      • Vars
        • K(d);N_SPINS(a),P_SPINP(h),S_FLIGHT::QAB1(J)
        • P(h);SBLOCK::QAR2(J)
      • Refutation
        • P(i);
    • Try
      • S(H);
      • Threat
        • B(B)+S(F)
      • Vars
        • K(d);N_SPINS(a),P_SPINP(h),S_FLIGHT::S(F)
      • Refutation
        • K(d);N_SPINS(a),P_SPINP(h),S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(d);N_SPINS(a),P_SPINP(h),S_FLIGHT::QAB1(J)
        • P(h);SBLOCK::QAR2(J)
      • Refutation
        • P(c);XB(A)
    • Try
      • R(D);XP(b)
      • Vars
        • K(d);N_SPINS(a),P_SPINP(h),S_FLIGHT::QAB1(J)
        • P(h);SBLOCK::QAR2(J)
      • Refutation
        • R(e);XR(D)
    • Try
      • Q(J);
      • Refutation
        • P(h);P_SPINP(h),XS(H)
    • Try
      • Q(J);CHECK
      • Vars
        • P(h);OGATE,P_SPINP(h),SBLOCK::QAB(J),XP(g)
      • Refutation
        • K(d);N_SPINS(a),S_FLIGHT
    • Try
      • Q(J);
      • Vars
        • K(d);N_SPINS(a),S_FLIGHT::QAB1(J)
        • P(h);SBLOCK::QAR2(J)
      • Refutation
        • P(h);XS(H)
    • Try
      • Q(J);XP(h)
      • Threat
        • DUALS(3)
      • Vars
        • K(d);N_SPINS(a),S_FLIGHT::QAB1(J),XP(g)
      • Refutation
        • B(f);XQ(J)
  • Actual
    • S(H);
    • Vars
      • K(d);N_SPINS(a),P_SPINP(h),S_FLIGHT::S(H)
      • R(e);SBLOCK::B(B)+S(F)
      • B(f);SBLOCK::B(B)+S(F)
      • P(h);::S(H)
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).