MESON Chess Problem Database
Problem Display
PID: 64602 (K1RB4/p4P2/2N3p1/1kNR2P1/1pn5/1p2p3/4B3/q7 w - - 0 1)
Rice, William Bayard
2nd HM., Good Companions (April), 1915
#2
9 + 8
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qe5
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qg7
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qg1
- 2.Sd4#
- 2.Sxa7#
- 1...Qh1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Qb2
- Tries
- 1.Kb7?
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qe5
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qg7
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qg1
- 2.Sd4#
- 2.Sxa7#
- 1...Qh1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sxb3#
- 2.Sd3#
- 2.Se4#
- 2.Sa6#
- 2.Se6#
- 2.Sd7#
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Qa6+!
- 1...Qb2
- 1.Kb8?
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qg7
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qg1
- 2.Sd4#
- 2.Sxa7#
- 1...Qh1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Qe5+!
- 1...Qb2
- 1.Sxb3+?
- 1...Ka6
- 2.Sxb4#
- 2.Sb8#
- 2.Bxc4#
- 1...Ka4!
- 1...Ka6
- 1.Sd3+?
- 1...Ka6
- 2.Sdxb4#
- 2.Scxb4#
- 2.Sb8#
- 1...Ka4!
- 1...Ka6
- 1.Sa4+?
- 1...Ka6
- 2.Sxb4#
- 2.Sb8#
- 2.Bxc4#
- 2.Ra5#
- 1...Kxa4!
- 1...Ka6
- 1.Se4+?
- 1...Ka6
- 2.Sxb4#
- 2.Sb8#
- 2.Bxc4#
- 1...Ka4!
- 1...Ka6
- 1.Sa6+?
- 1...Kxa6
- 2.Sxb4#
- 2.Sb8#
- 2.Bxc4#
- 1...Ka4!
- 1...Kxa6
- 1.Se6+?
- 1...Ka6
- 2.Sxb4#
- 2.Sb8#
- 2.Bxc4#
- 1...Ka4!
- 1...Ka6
- 1.Sb7+?
- 1...Ka6
- 2.Sxb4#
- 2.Sb8#
- 2.Bxc4#
- 1...Ka4!
- 1...Ka6
- 1.Sd7+?
- 1...Ka6
- 2.Sxb4#
- 2.Scb8#
- 2.Sdb8#
- 2.Bxc4#
- 1...Ka4!
- 1...Ka6
- 1.Sa5?
- threat
- 2.Bxc4#
- 2.Rb8#
- 1...Qc3
- 2.Rb8#
- 1...Qd4
- 2.Rb8#
- 1...Qe5
- 2.Bxc4#
- 1...Qf6
- 2.Bxc4#
- 1...Qc1
- 2.Rb8#
- 1...Qf1
- 2.Rb8#
- 1...Qxa5!
- threat
- 1.Se5?
- threat
- 2.Bxc4#
- 2.Rb8#
- 1...Qc3
- 2.Rb8#
- 1...Qd4
- 2.Rb8#
- 1...Qc1
- 2.Rb8#
- 1...Qf1
- 2.Rb8#
- 1...Qa5
- 2.Bxc4#
- 1...Qa6
- 2.Bxc4#
- 1...Qxe5!
- threat
- 1.Bf1?
- 1...Qxf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qe5
- 2.Sxa7#
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qg7
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...e2!
- 1...Qxf1
- 1.Bd3?
- 1...Qe5
- 2.Sxa7#
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qg7
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sd4#
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qg1
- 2.Sd4#
- 2.Sxa7#
- 1...Qh1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...e2!
- 1...Qe5
- 1.Bc7?
- 1...Qe5
- 2.Sxa7#
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qg7
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qg1
- 2.Sd4#
- 2.Sxa7#
- 1...Qh1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Kxc6!
- 1...Qe5
- 1.Re5?
- 1...Qxe5
- 2.Sxa7#
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qg1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Qh1!
- 1...Qxe5
- 1.Rd7?
- 1...Kxc5
- 2.Sd4#
- 2.Sxa7#
- 1...Qe5
- 2.Sxa7#
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qg7
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qg1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Qh1!
- 1...Kxc5
- 1.f8Q?
- 1...Qh1
- 2.Sd4#
- 2.Sxa7#
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qe5
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qg1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Qg7!
- 1...Qh1
- 1.f8S?
- 1...Qh1
- 2.Sd4#
- 2.Sxa7#
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qe5
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qg1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Qg7!
- 1...Qh1
- 1.f8B?
- 1...Qh1
- 2.Sd4#
- 2.Sxa7#
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qe5
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qg1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Qg7!
- 1...Qh1
- 1.f8R?
- 1...Qh1
- 2.Sd4#
- 2.Sxa7#
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qe5
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qd1
- 2.Sxa7#
- 1...Qe1
- 2.Sd4#
- 2.Sxa7#
- 1...Qf1
- 2.Sd4#
- 2.Sxa7#
- 1...Qg1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Qg7!
- 1...Qh1
- 1.Kb7?
- Keys
- 1.Rd1!
- 1...Kxc5
- 2.Sxa7#
- 1...Qxd1
- 2.Sxa7#
- 1...Qe5
- 2.Sxa7#
- 1...Qb2
- 2.Sxa7#
- 1...Qc3
- 2.Sxa7#
- 1...Qd4
- 2.Sxd4#
- 2.Sxa7#
- 1...Qf6
- 2.Sxa7#
- 1...Qg7
- 2.Sxa7#
- 1...Qh8
- 2.Sxa7#
- 1...Qb1
- 2.Sd4#
- 2.Sxa7#
- 1...Qc1
- 2.Sd4#
- 2.Sxa7#
- 1...Qa2
- 2.Sd4#
- 1...Qa3
- 2.Sd4#
- 1...Qa4
- 2.Sd4#
- 1...Qa5
- 2.Sd4#
- 1...Qa6
- 2.Sd4#
- 1...b2
- 2.Sd4#
- 1...a5
- 2.Sa7#
- 1...a6
- 2.Sa7#
- 1...Kxc5
- 1.Rd1!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD,P_PINP(F)::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Refutation
- Q(a);CHECK
- Try
- K(G);P-FLIGHT
- Vars
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Refutation
- Q(a);CHECK
- Try
- S(B);CHECK,XP(b)
- Refutation
- K(f);N_SPINS(e),S_FLIGHT
- Try
- S(B);CHECK,N_PINS(e)
- Refutation
- K(f);S_FLIGHT
- Try
- S(B);CHECK
- Refutation
- K(f);N_SPINS(e),S_FLIGHT,XS(B)
- Try
- S(B);CHECK
- Refutation
- K(f);N_SPINS(e),S_FLIGHT
- Try
- S(B);CHECK
- Refutation
- K(f);N_SPINS(e),S_FLIGHT
- Try
- S(B);CHECK
- Refutation
- K(f);N_SPINS(e),S_FLIGHT
- Try
- S(B);CHECK
- Refutation
- K(f);N_SPINS(e),S_FLIGHT
- Try
- S(B);CHECK
- Refutation
- K(f);N_SPINS(e),S_FLIGHT
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(a);::R(H)
- Q(a);::B(A),XS(e)
- Refutation
- Q(a);XS(E)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(a);::R(H)
- Q(a);::B(A),XS(e)
- Refutation
- Q(a);XS(E)
- Try
- B(A);
- Vars
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Refutation
- P(c);N_SPINS(e)
- Try
- B(A);
- Vars
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Refutation
- P(c);
- Try
- B(I);
- Vars
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD,P_PINR(H)::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Refutation
- K(f);N_SPINS(e),S_FLIGHT,XS(E)
- Try
- R(C);
- Vars
- Q(a);N_GUARD,XR(C)::S(E),XP(h)
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Refutation
- Q(a);P_PINS(E)
- Try
- R(C);
- Vars
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Refutation
- Q(a);P_PINS(E)
- Try
- P(F);
- Vars
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Refutation
- Q(a);
- Try
- P(F);
- Vars
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Refutation
- Q(a);
- Try
- P(F);
- Vars
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Refutation
- Q(a);
- Try
- P(F);
- Vars
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
- Refutation
- Q(a);
- Try
- Actual
- R(C);
- Vars
- K(f);N_SPINS(e),P-FLIGHT,XS(B)::R(H)+S(E),XP(h)
- Q(a);N_GUARD,XR(C)::S(E),XP(h)
- Q(a);N_GUARD::S(E),XP(h)
- Q(a);N_GUARD::S(E)
- P(b);S_CUTQ(a)::S(E)
- P(h);S_CUTQ(a)::S(E)
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).