MESON Chess Problem Database
Problem Display
PID: 65289 (1RBQN3/pNRPP3/rkq5/p7/P7/P7/K7/8 w - - 0 1)
Hume, George
Good Companions (April), 1922
#2
11 + 5
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Qh1
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qg2+
- 2.Rc2#
- 1...Qf3
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qxa4
- 2.Sc5#
- 2.Sbd6#
- 2.Rc5#
- 1...Qe4
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qb5
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qd5+
- 2.Rc4#
- 1...Qxb7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rbxb7#
- 1...Qxd7
- 2.Sc5#
- 2.Sbd6#
- 1...Qc1
- 2.Sc5#
- 2.Sbd6#
- 2.Rxc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc2+
- 2.Rxc2#
- 1...Qc3
- 2.Sc5#
- 2.Sbd6#
- 2.Rxc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc4+
- 2.Rxc4#
- 1...Qc5
- 2.Sxc5#
- 2.Sbd6#
- 2.Rxc5#
- 1...Qd6
- 2.Sc5#
- 2.Sbxd6#
- 1...Qe6+
- 2.Rc4#
- 1...Qf6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qg6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qh6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qxc7
- 2.Qxc7#
- 1...Qh1
- Tries
- 1.Kb1?
- 1...Qh1+
- 2.Rc1#
- 1...Qe4+
- 2.Rc2#
- 1...Qc1+
- 2.Rxc1#
- 1...Qc2+
- 2.Rxc2#
- 1...Qg6+
- 2.Rc2#
- 1...Qxa4
- 2.Sc5#
- 2.Sbd6#
- 2.Rc5#
- 1...Qxb7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rbxb7#
- 1...Qxd7
- 2.Sc5#
- 2.Sbd6#
- 1...Qxc7
- 2.Qxc7#
- 1...Qg2
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qf3
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qd5
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc3
- 2.Sc5#
- 2.Sbd6#
- 2.Rxc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc4
- 2.Sc5#
- 2.Sbd6#
- 2.Rxc4#
- 2.Rc5#
- 1...Qc5
- 2.Sxc5#
- 2.Sbd6#
- 2.Rxc5#
- 1...Qd6
- 2.Sc5#
- 2.Sbxd6#
- 1...Qe6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qf6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qh6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qb5+!
- 1...Qh1+
- 1.Kb2?
- 1...Qg2+
- 2.Rc2#
- 1...Qc1+
- 2.Rxc1#
- 1...Qc2+
- 2.Rxc2#
- 1...Qc3+
- 2.Rxc3#
- 1...Qf6+
- 2.Rc3#
- 1...Qxa4
- 2.Sc5#
- 2.Sbd6#
- 2.Rc5#
- 1...Qxb7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rbxb7#
- 1...Qxd7
- 2.Sc5#
- 2.Sbd6#
- 1...Qxc7
- 2.Qxc7#
- 1...Qh1
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qf3
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qe4
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qd5
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc4
- 2.Sc5#
- 2.Sbd6#
- 2.Rxc4#
- 2.Rc5#
- 1...Qc5
- 2.Sxc5#
- 2.Sbd6#
- 2.Rxc5#
- 1...Qd6
- 2.Sc5#
- 2.Sbxd6#
- 1...Qe6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qg6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qh6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qb5+!
- 1...Qg2+
- 1.Sc5+?
- 1...Qb7
- 2.Rbxb7#
- 1...Kxc5!
- 1...Qb7
- 1.Sbd6+?
- 1...Qb7
- 2.Sc4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rbxb7#
- 1...Kc5!
- 1...Qb7
- 1.Sed6?
- 1...Qg2+
- 2.Rc2#
- 1...Qd5+
- 2.Rc4#
- 1...Qc2+
- 2.Rxc2#
- 1...Qc4+
- 2.Sxc4#
- 2.Rxc4#
- 1...Qxa4
- 2.Sc5#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qxb7
- 2.Sc4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rbxb7#
- 1...Qxd7
- 2.Sc4#
- 2.Sc5#
- 1...Qxd6
- 2.Sc5#
- 2.Sxd6#
- 1...Qh1
- 2.Sc4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qf3
- 2.Sc4#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qe4
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qb5
- 2.Sc5#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc1
- 2.Sc5#
- 2.Rxc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc3
- 2.Sc5#
- 2.Rxc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc5
- 2.Sxc5#
- 2.Rxc5#
- 1...Qxc7!
- 1...Qg2+
- 1.Sf6?
- 1...Qg2+
- 2.Rc2#
- 1...Qd5+
- 2.Sxd5#
- 2.Rc4#
- 1...Qc2+
- 2.Rxc2#
- 1...Qc4+
- 2.Rxc4#
- 1...Qe6+
- 2.Rc4#
- 1...Qxa4
- 2.Sc5#
- 2.Sd6#
- 2.Rc5#
- 1...Qxb7
- 2.Sd5#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rbxb7#
- 1...Qxd7
- 2.Sxd7#
- 2.Sc5#
- 2.Sd6#
- 1...Qxf6
- 2.Sc5#
- 2.Sd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qh1
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qf3
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qe4
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qb5
- 2.Sc5#
- 2.Sd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc1
- 2.Sd5#
- 2.Sc5#
- 2.Sd6#
- 2.Rxc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc3
- 2.Sd5#
- 2.Sc5#
- 2.Sd6#
- 2.Rxc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc5
- 2.Sxc5#
- 2.Sd6#
- 2.Rxc5#
- 1...Qd6
- 2.Sc5#
- 2.Sxd6#
- 1...Qxc7!
- 1...Qg2+
- 1.Sg7?
- 1...Qg2+
- 2.Rc2#
- 1...Qd5+
- 2.Rc4#
- 1...Qc2+
- 2.Rxc2#
- 1...Qc4+
- 2.Rxc4#
- 1...Qe6+
- 2.Rc4#
- 1...Qxa4
- 2.Sc5#
- 2.Sd6#
- 2.Rc5#
- 1...Qxb7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rbxb7#
- 1...Qxd7
- 2.Sc5#
- 2.Sd6#
- 1...Qh1
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qf3
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qe4
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qb5
- 2.Sc5#
- 2.Sd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc1
- 2.Sc5#
- 2.Sd6#
- 2.Rxc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc3
- 2.Sc5#
- 2.Sd6#
- 2.Rxc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc5
- 2.Sxc5#
- 2.Sd6#
- 2.Rxc5#
- 1...Qd6
- 2.Sc5#
- 2.Sxd6#
- 1...Qf6
- 2.Sc5#
- 2.Sd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qg6
- 2.Sc5#
- 2.Sd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qh6
- 2.Sc5#
- 2.Sd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qxc7!
- 1...Qg2+
- 1.Kb1?
- Keys
- 1.Ka1!
- 1...Qh1+
- 2.Rc1#
- 1...Qc1+
- 2.Rxc1#
- 1...Qc3+
- 2.Rxc3#
- 1...Qf6+
- 2.Rc3#
- 1...Qxa4
- 2.Sc5#
- 2.Sbd6#
- 2.Rc5#
- 1...Qxb7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rbxb7#
- 1...Qxd7
- 2.Sc5#
- 2.Sbd6#
- 1...Qxc7
- 2.Qxc7#
- 1...Qg2
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qf3
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qe4
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qb5
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qd5
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc2
- 2.Sc5#
- 2.Sbd6#
- 2.Rxc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qc4
- 2.Sc5#
- 2.Sbd6#
- 2.Rxc4#
- 2.Rc5#
- 1...Qc5
- 2.Sxc5#
- 2.Sbd6#
- 2.Rxc5#
- 1...Qd6
- 2.Sc5#
- 2.Sbxd6#
- 1...Qe6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qg6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qh6
- 2.Sc5#
- 2.Sbd6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rc5#
- 1...Qh1+
- 1.Ka1!
This is a version
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- Q(d);CHECK,OGATE::QAB(J)+R(E)
- Q(d);CHECK,OGATE::QAB(J)+R(E),XQ(d)
- Q(d);OGATE,P_SPINQ(d),XR(E)::QAB1(J),XQ(d)
- Tries
- Try
- K(A);S_FLIGHT
- Vars
- Q(d);CHECK,OGATE::QAB(J)+R(E)
- Q(d);CHECK,OGATE::QAB(J)+R(E),XQ(d)
- Q(d);OGATE,P_SPINQ(d),XR(E)::QAB1(J),XQ(d)
- Refutation
- Q(d);CHECK
- Try
- K(A);P-FLIGHT
- Vars
- Q(d);CHECK,OGATE::QAB(J)+R(E)
- Q(d);CHECK,OGATE::QAB(J)+R(E),XQ(d)
- Q(d);OGATE,P_SPINQ(d),XR(E)::QAB1(J),XQ(d)
- Refutation
- Q(d);CHECK
- Try
- S(D);CHECK
- Vars
- Q(d);N_GUARD,P_SPINQ(d)::R1(H),XQ(d)
- Refutation
- K(c);P_SPINQ(d),S_FLIGHT,XS(D)
- Try
- S(D);CHECK
- Refutation
- K(c);P_SPINQ(d),S_FLIGHT
- Try
- S(K);
- Vars
- Q(d);CHECK,OGATE::QAB(J)+R(E)
- Q(d);CHECK,OGATE::QAB(J)+R(E),XQ(d)
- Refutation
- Q(d);P_SPINQ(d),XR(E)
- Try
- S(K);
- Vars
- Q(d);CHECK,OGATE::QAB(J)+R(E)
- Q(d);CHECK,OGATE::QAB(J)+R(E),XQ(d)
- Refutation
- Q(d);P_SPINQ(d),XR(E)
- Try
- S(K);
- Vars
- Q(d);CHECK,OGATE::QAB(J)+R(E)
- Q(d);CHECK,OGATE::QAB(J)+R(E),XQ(d)
- Refutation
- Q(d);P_SPINQ(d),XR(E)
- Try
- Actual
- K(A);P-FLIGHT
- Vars
- Q(d);CHECK,OGATE::QAB(J)+R(E)
- Q(d);CHECK,OGATE::QAB(J)+R(E),XQ(d)
- Q(d);OGATE,P_SPINQ(d),XR(E)::QAB1(J),XQ(d)
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).