MESON Chess Problem Database
Problem Display
PID: 21489 (1K2RN2/1Bp5/2r5/3nbp2/R2pkp2/3p1n2/3P2r1/3N3Q w - - 0 1)
Dobbs, Gilbert S
Good Companions (December), 1919
#2
8 + 11
| 3132 | The Good Companion Two-Mover | 1922 |
| 3391 | Het Half Pin Thema | 1924 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sf2#
- 1...Rf2
- 2.Sxf2#
- 1...Rg3
- 2.Sf2#
- 1...Rg4
- 2.Sf2#
- 1...Rg5
- 2.Sf2#
- 1...Rgg6
- 2.Sf2#
- 1...Rg7
- 2.Sf2#
- 1...Rg8
- 2.Sf2#
- 1...Rc3
- 2.Sxc3#
- 1...Ra6
- 2.Sc3#
- 1...Rb6
- 2.Sc3#
- 1...Rd6
- 2.Sc3#
- 1...Re6
- 2.Sc3#
- 1...Rf6
- 2.Sc3#
- 1...Rcg6
- 2.Sc3#
- 1...Rh6
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...Sf6
- 2.Sc3#
- 1...Se7
- 2.Sc3#
- 1...Rg1
- Tries
- 1.Qxg2?
- threat
- 2.Sf2#
- 1...Sc3
- 2.Sxc3#
- 1...Se3
- 2.Sc3#
- 1...Sb6
- 2.Sc3#
- 1...Sf6
- 2.Sc3#
- 1...Se7
- 2.Sc3#
- 1...Sb4!
- threat
- 1.Qe1+?
- 1...Re2
- 2.Sf2#
- 1...Se3
- 2.Sc3#
- 2.Bxc6#
- 1...Sxe1!
- 1...Re2
- 1.Qxg2?
- Keys
- 1.Sh7!
- 1...Rxd2
- 2.Sg5#
- 1...Sxd2
- 2.Sg5#
- 1...Se1
- 2.Sg5#
- 1...Sg1
- 2.Sg5#
- 1...Sh2
- 2.Sg5#
- 1...Sh4
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sc3
- 2.Sxc3#
- 2.Sf6#
- 1...Se3
- 2.Sc3#
- 2.Sf6#
- 1...Sb4
- 2.Sf6#
- 1...Sb6
- 2.Sc3#
- 2.Sf6#
- 1...Sf6
- 2.Sc3#
- 2.Sxf6#
- 1...Se7
- 2.Sc3#
- 1...Rg1
- 2.Sf2#
- 1...Re2
- 2.Sg5#
- 1...Rf2
- 2.Sxf2#
- 2.Sg5#
- 1...Rh2
- 2.Sg5#
- 1...Rg3
- 2.Sf2#
- 1...Rg4
- 2.Sf2#
- 1...Rg5
- 2.Sf2#
- 2.Sxg5#
- 1...Rgg6
- 2.Sf2#
- 1...Rg7
- 2.Sf2#
- 1...Rg8
- 2.Sf2#
- 1...Rc1
- 2.Sf6#
- 1...Rc2
- 2.Sf6#
- 1...Rc3
- 2.Sxc3#
- 2.Sf6#
- 1...Rc4
- 2.Sf6#
- 1...Rc5
- 2.Sf6#
- 1...Ra6
- 2.Sc3#
- 1...Rb6
- 2.Sc3#
- 1...Rd6
- 2.Sc3#
- 1...Re6
- 2.Sc3#
- 1...Rf6
- 2.Sc3#
- 2.Sxf6#
- 1...Rcg6
- 2.Sc3#
- 1...Rh6
- 2.Sc3#
- 1...Rxd2
- 1.Sh7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 14
- REMOVED MATES = 8
- Sets
- R(a);N_GUARD,P_SPINS(c)::S(A)
- R(a);N_GUARD,P_SPINS(c)::S(A),XR(a)
- R(j);N_GUARD,P_SPINS(g)::S(A),XR(j)
- R(j);N_GUARD,P_SPINS(g)::S(A)
- R(j);N_GUARD,P_PINB(E),P_SPINS(g)::S(A)
- R(j);N_GUARD,N_SPINB(h),P_SPINS(g)::S(A)
- S(g);N_GUARD,P_SPINR(j)::S(A),XS(g)
- S(g);N_GUARD,P_SPINR(j)::S(A)
- S(g);N_GUARD,N_SPINB(h),P_SPINR(j)::S(A)
- Tries
- Try
- Q(B);P_PINS(c),XR(a)
- Threat
- S(A)
- Vars
- S(g);N_GUARD,P_SPINR(j)::S(A),XS(g)
- S(g);N_GUARD,P_SPINR(j)::S(A)
- S(g);N_GUARD,N_SPINB(h),P_SPINR(j)::S(A)
- Refutation
- S(g);N_SPINP(d),P_SPINR(j)
- Try
- Q(B);CHECK
- Vars
- R(a);P_SPINR(a)::S(A)
- Refutation
- S(c);XQ(B)
- Try
- Actual
- S(H);
- Vars
- R(a);N_GUARD,P_SPINS(c),XP(C)::S(H)
- S(c);N_GUARD,P_SPINR(a),XP(C)::S(H)
- S(c);N_GUARD,P_SPINR(a)::S(H)
- S(c);N_GUARD,P_SPINR(a)::S(H),XS(c)
- S(g);N_GUARD,N_SPINP(d),P_SPINR(j)::S(H)
- S(g);N_GUARD,N_SPINB(h),P_SPINR(j)::S(A)
- R(a);N_GUARD,P_SPINS(c)::S(A)
- R(a);N_GUARD,P_SPINS(c)::S(H)
- R(a);N_GUARD,P_PINR(G),P_SPINS(c)::S(A)
- R(j);N_GUARD,P_SPINS(g)::S(H)
- R(j);N_GUARD,N_SPINP(d),P_SPINS(g)::S(H)
- R(j);N_GUARD,P_SPINS(g)::S(A)
- R(j);N_GUARD,P_PINB(E),P_SPINS(g)::S(A)
- R(j);N_GUARD,N_SPINB(h),P_SPINS(g)::S(A)
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).