MESON Chess Problem Database
Problem Display
PID: 21636 (8/K1p2R2/4k2N/1p2r3/1BPQn1P1/5Bb1/2N2q2/4R3 w - - 0 1)
Sheppard, Charles William
Good Companions (January), 1920
#2
10 + 7
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Qxe1
- 2.Qd7#
- 1...Qxd4+
- 2.Sxd4#
- 1...Qf1
- 2.Qd7#
- 1...Qxc2
- 2.Qd7#
- 1...Qe2
- 2.Qd7#
- 1...Qg2
- 2.Qd7#
- 1...Qh2
- 2.Qd7#
- 1...Qxf3
- 2.Qd7#
- 1...Rc5
- 2.Qf6#
- 1...Rd5
- 2.Re7#
- 2.cxd5#
- 1...Rf5
- 2.Re7#
- 2.gxf5#
- 1...Rg5
- 2.Rf6#
- 2.Re7#
- 1...Rh5
- 2.Rf6#
- 2.Re7#
- 1...Sd2
- 2.Bd5#
- 1...Sc5
- 2.Qd5#
- 1...Sg5
- 2.Bd5#
- 1...Sd6
- 2.Bd5#
- 1...Sf6
- 2.Re7#
- 1...c5
- 2.Qd7#
- 1...Qxe1
- Tries
- 1.Ka8?
- threat
- 2.Qd7#
- 1...Qxd4
- 2.Sxd4#
- 1...Rc5
- 2.Qf6#
- 1...Rd5
- 2.Re7#
- 2.Qf6#
- 2.Qxd5#
- 2.cxd5#
- 1...Rf5
- 2.Re7#
- 2.gxf5#
- 1...Rg5
- 2.Rf6#
- 2.Re7#
- 2.Qf6#
- 1...Rh5
- 2.Rf6#
- 2.Re7#
- 2.Qf6#
- 1...Sc5
- 2.Qd5#
- 1...Sd6
- 2.Bd5#
- 2.Qd5#
- 1...Sf6
- 2.Re7#
- 1...Qd2!
- threat
- 1.Kb8?
- threat
- 2.Qd7#
- 1...Qxd4
- 2.Sxd4#
- 1...Rc5
- 2.Qf6#
- 1...Rd5
- 2.Re7#
- 2.Qf6#
- 2.Qxd5#
- 2.cxd5#
- 1...Rf5
- 2.Re7#
- 2.gxf5#
- 1...Rg5
- 2.Rf6#
- 2.Re7#
- 2.Qf6#
- 1...Rh5
- 2.Rf6#
- 2.Re7#
- 2.Qf6#
- 1...Sc5
- 2.Qd5#
- 1...Sd6
- 2.Bd5#
- 2.Qd5#
- 1...Sf6
- 2.Re7#
- 1...Qd2!
- threat
- 1.Bc5?
- threat
- 2.Qd7#
- 1...Qxd4
- 2.Sxd4#
- 1...Rxc5
- 2.Qf6#
- 1...Sxc5
- 2.Qd5#
- 1...Rd5
- 2.Re7#
- 2.Qf6#
- 2.Qxd5#
- 2.cxd5#
- 1...Rf5
- 2.Re7#
- 2.gxf5#
- 1...Rg5
- 2.Rf6#
- 2.Re7#
- 2.Qf6#
- 1...Rh5
- 2.Rf6#
- 2.Re7#
- 2.Qf6#
- 1...Sd6
- 2.Bd5#
- 2.Qd5#
- 1...Sf6
- 2.Re7#
- 1...Qd2!
- threat
- 1.Ka8?
- Keys
- 1.g5!
- threat
- 2.Re7#
- 1...Qxd4+
- 2.Sxd4#
- 1...Sxg5
- 2.Bd5#
- 1...Rc5
- 2.Qf6#
- 1...Sc5
- 2.Qd5#
- 1...Sd6
- 2.Bd5#
- 1...c5
- 2.Qd7#
- threat
- 1.g5!
This is a version of 101572
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- Q(a);N_PINQ(F),XR(A)::QAB1(F)
- Q(a);CHECK,XQ(F)::S(B),XQ(a)
- Q(a);N_PINQ(F)::QAB1(F)
- Q(a);N_PINQ(F),XS(B)::QAB1(F)
- Q(a);N_PINQ(F),XB(C)::QAB1(F)
- R(e);N_PINQ(F),P_SPINS(c)::QAR1(F)
- S(c);OGATE,P_SPINR(e)::B(C)
- S(c);N_PINQ(F),P_SPINR(e)::QAB1(F)
- S(c);P_SPINR(e),SBLOCK::R1(J)
- P(g);N_PINQ(F)::QAB1(F)
- Tries
- Try
- K(I);N_SPINQ(F),P-FLIGHT
- Threat
- QAB1(F)
- Vars
- Q(a);XQ(F)::S(B),XQ(a)
- R(e);OGATE,P_SPINS(c)::QAR1(F)
- S(c);P_SPINR(e)::QAB1(F)
- S(c);P_SPINR(e),SBLOCK::R1(J)
- Refutation
- Q(a);
- Try
- K(I);N_SPINQ(F),S_FLIGHT
- Threat
- QAB1(F)
- Vars
- Q(a);XQ(F)::S(B),XQ(a)
- R(e);OGATE,P_SPINS(c)::QAR1(F)
- S(c);P_SPINR(e)::QAB1(F)
- S(c);P_SPINR(e),SBLOCK::R1(J)
- Refutation
- Q(a);
- Try
- B(D);N_SPINQ(F)
- Threat
- QAB1(F)
- Vars
- Q(a);P_PINB(D),XQ(F)::S(B),XQ(a)
- R(e);OGATE,P_SPINS(c),XB(D)::QAR1(F)
- S(c);P_SPINR(e),XB(D)::QAB1(F)
- S(c);P_SPINR(e),SBLOCK::R1(J)
- Refutation
- Q(a);
- Try
- Actual
- P(G);
- Threat
- R1(J)
- Vars
- Q(a);CHECK,XQ(F)::S(B),XQ(a)
- S(c);OGATE,P_SPINR(e),XP(G)::B(C)
- R(e);N_PINQ(F),P_SPINS(c)::QAR1(F)
- S(c);N_PINQ(F),P_SPINR(e)::QAB1(F)
- S(c);OGATE,P_SPINR(e)::B(C)
- P(g);N_PINQ(F)::QAB1(F)
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).