MESON Chess Problem Database
Problem Display
PID: 21938 (1nNb4/pKp1R3/P1P1p3/2pkP3/R2p2N1/3B1r2/3n3p/7Q w - - 0 1)
Hume, George
Good Companions (April), 1922
#2
10 + 11
| 3132 | The Good Companion Two-Mover | 1922 |
| 3348 | Changing Fashions | 1925 |
SOLUTION
- SOUND
- Sets
- 1...Bxe7
- 2.Sxe7#
- 1...Sb1
- 2.Qxf3#
- 1...Sf1
- 2.Qxf3#
- 1...Sb3
- 2.Qxf3#
- 1...Sc4
- 2.Qxf3#
- 1...Se4
- 2.Bc4#
- 1...Sxa6
- 2.Rd7#
- 1...Sxc6
- 2.Rd7#
- 1...Sd7
- 2.Rxd7#
- 1...c4
- 2.Ra5#
- 1...Bxe7
- Tries
- 1.Sxa7?
- 1...Sxa6
- 2.Rd7#
- 1...Sxc6
- 2.Rd7#
- 1...c4
- 2.Ra5#
- 1...Sb1
- 2.Qxf3#
- 1...Sf1
- 2.Qxf3#
- 1...Sb3
- 2.Qxf3#
- 1...Sc4
- 2.Qxf3#
- 1...Se4
- 2.Bc4#
- 1...Sd7
- 2.Rxd7#
- 1...Bxe7!
- 1...Sxa6
- 1.Bc4+?
- 1...Sxc4
- 2.Qxf3#
- 1...Ke4!
- 1...Sxc4
- 1.Ra1?
- 1...Bxe7
- 2.Sxe7#
- 1...Sxa6
- 2.Rd7#
- 1...Sxc6
- 2.Rd7#
- 1...c4
- 2.Ra5#
- 1...Sb1
- 2.Qxf3#
- 1...Sf1
- 2.Qxf3#
- 1...Sb3
- 2.Qxf3#
- 1...Sc4
- 2.Qxf3#
- 1...Sd7
- 2.Rxd7#
- 1...Se4!
- 1...Bxe7
- 1.Ra2?
- 1...Bxe7
- 2.Sxe7#
- 1...Sxa6
- 2.Rd7#
- 1...Sxc6
- 2.Rd7#
- 1...c4
- 2.Ra5#
- 1...Sb1
- 2.Qxf3#
- 1...Sf1
- 2.Qxf3#
- 1...Sb3
- 2.Qxf3#
- 1...Sc4
- 2.Qxf3#
- 1...Sd7
- 2.Rxd7#
- 1...Se4!
- 1...Bxe7
- 1.Ra3?
- 1...Bxe7
- 2.Sxe7#
- 1...Sxa6
- 2.Rd7#
- 1...Sxc6
- 2.Rd7#
- 1...c4
- 2.Ra5#
- 1...Sb1
- 2.Qxf3#
- 1...Sf1
- 2.Qxf3#
- 1...Sb3
- 2.Qxf3#
- 1...Sc4
- 2.Qxf3#
- 1...Sd7
- 2.Rxd7#
- 1...Se4!
- 1...Bxe7
- 1.Rb4?
- 1...Bxe7
- 2.Sxe7#
- 1...Sxa6
- 2.Rd7#
- 1...Sxc6
- 2.Rd7#
- 1...c4
- 2.Rb5#
- 1...Se4
- 2.Bc4#
- 1...Sb1
- 2.Qxf3#
- 1...Sf1
- 2.Qxf3#
- 1...Sb3
- 2.Qxf3#
- 1...Sc4
- 2.Qxf3#
- 1...Sd7
- 2.Rxd7#
- 1...cxb4!
- 1...Bxe7
- 1.Rc4?
- 1...Bxe7
- 2.Sxe7#
- 1...Sxc4
- 2.Qxf3#
- 1...Sxa6
- 2.Rd7#
- 1...Sxc6
- 2.Rd7#
- 1...Sb1
- 2.Qxf3#
- 1...Sf1
- 2.Qxf3#
- 1...Sb3
- 2.Qxf3#
- 1...Sd7
- 2.Rxd7#
- 1...Se4!
- 1...Bxe7
- 1.Ra5?
- 1...Bxe7
- 2.Sxe7#
- 1...Sxa6
- 2.Rd7#
- 1...Sxc6
- 2.Rd7#
- 1...Sb1
- 2.Qxf3#
- 1...Sf1
- 2.Qxf3#
- 1...Sb3
- 2.Qxf3#
- 1...Sc4
- 2.Qxf3#
- 1...Sd7
- 2.Rxd7#
- 1...Se4!
- 1...Bxe7
- 1.Qxf3+?
- 1...Se4
- 2.Bc4#
- 2.Bxe4#
- 2.Qxe4#
- 1...Sxf3!
- 1...Se4
- 1.Sxa7?
- Keys
- 1.Bf5!
- 1...Bxe7
- 2.Sxe7#
- 1...Sxa6
- 2.Rd7#
- 1...Sxc6
- 2.Rd7#
- 1...exf5
- 2.Sf6#
- 1...c4
- 2.Ra5#
- 1...Se4
- 2.Bxe6#
- 1...Sb1
- 2.Qxf3#
- 1...Sf1
- 2.Qxf3#
- 1...Sb3
- 2.Qxf3#
- 1...Sc4
- 2.Qxf3#
- 1...Sd7
- 2.Rxd7#
- 1...d3
- 2.Bxe6#
- 1...Bxe7
- 1.Bf5!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- B(k);XR(I)::S(J),XB(k)
- S(a);N_GUARD::QAB(A),XR(c)
- S(a);N_GUARD,N_SPINR(c),SBLOCK::B(B)
- S(j);N_GUARD,XP(F)::R(I)
- S(j);N_GUARD,XP(G)::R(I)
- S(j);N_GUARD::R(I),XS(j)
- P(e);OGATEB::R(C)
- Tries
- Try
- S(J);XP(h)
- Vars
- S(j);N_GUARD,XP(F)::R(I)
- S(j);N_GUARD,XP(G)::R(I)
- P(e);OGATEB::R(C)
- S(a);N_GUARD::QAB(A),XR(c)
- S(a);N_GUARD,N_SPINR(c),SBLOCK::B(B)
- S(j);N_GUARD::R(I),XS(j)
- Refutation
- B(k);XR(I)
- Try
- B(B);CHECK
- Vars
- S(a);XB(B)::QAB(A),XR(c)
- Refutation
- K(f);S_FLIGHT
- Try
- R(C);
- Vars
- B(k);XR(I)::S(J),XB(k)
- S(j);N_GUARD,XP(F)::R(I)
- S(j);N_GUARD,XP(G)::R(I)
- P(e);OGATEB::R(C)
- S(a);N_GUARD::QAB(A),XR(c)
- S(j);N_GUARD::R(I),XS(j)
- Refutation
- S(a);N_SPINR(c)
- Try
- R(C);
- Vars
- B(k);XR(I)::S(J),XB(k)
- S(j);N_GUARD,XP(F)::R(I)
- S(j);N_GUARD,XP(G)::R(I)
- P(e);OGATEB::R(C)
- S(a);N_GUARD::QAB(A),XR(c)
- S(j);N_GUARD::R(I),XS(j)
- Refutation
- S(a);N_SPINR(c)
- Try
- R(C);
- Vars
- B(k);XR(I)::S(J),XB(k)
- S(j);N_GUARD,XP(F)::R(I)
- S(j);N_GUARD,XP(G)::R(I)
- P(e);OGATEB::R(C)
- S(a);N_GUARD::QAB(A),XR(c)
- S(j);N_GUARD::R(I),XS(j)
- Refutation
- S(a);N_SPINR(c)
- Try
- R(C);
- Vars
- B(k);XR(I)::S(J),XB(k)
- S(j);N_GUARD,XP(F)::R(I)
- S(j);N_GUARD,XP(G)::R(I)
- P(e);OGATEB::R(C)
- S(a);N_GUARD,N_SPINR(c),SBLOCK::B(B)
- S(a);N_GUARD::QAB(A),XR(c)
- S(j);N_GUARD::R(I),XS(j)
- Refutation
- P(e);XR(C)
- Try
- R(C);
- Vars
- B(k);XR(I)::S(J),XB(k)
- S(a);N_GUARD,XR(C)::QAB(A),XR(c)
- S(j);N_GUARD,XP(F)::R(I)
- S(j);N_GUARD,XP(G)::R(I)
- S(a);N_GUARD::QAB(A),XR(c)
- S(j);N_GUARD::R(I),XS(j)
- Refutation
- S(a);N_SPINR(c)
- Try
- R(C);P_PINP(e)
- Vars
- B(k);XR(I)::S(J),XB(k)
- S(j);N_GUARD,XP(F)::R(I)
- S(j);N_GUARD,XP(G)::R(I)
- S(a);N_GUARD::QAB(A),XR(c)
- S(j);N_GUARD::R(I),XS(j)
- Refutation
- S(a);N_SPINR(c)
- Try
- Q(A);CHECK,XR(c)
- Refutation
- S(a);XQ(A)
- Try
- Actual
- B(B);
- Vars
- B(k);XR(I)::S(J),XB(k)
- S(j);N_GUARD,XP(F)::R(I)
- S(j);N_GUARD,XP(G)::R(I)
- P(g);XB(B)::S(D)
- P(e);OGATEB,SBLOCK::R(C)
- S(a);N_SPINR(c),SBLOCK::B(B),XP(g)
- S(a);N_GUARD::QAB(A),XR(c)
- S(j);N_GUARD::R(I),XS(j)
- P(d);::B(B),XP(g)
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).