MESON Chess Problem Database
Problem Display
PID: 101574 (2rnr3/N2bp1N1/1BBk4/2p1RQ2/3p1nK1/8/7b/8 w - - 0 1)
Sheppard, Charles William
Good Companions, 1920
#2
7 + 10
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rxc6
- 2.Sb5#
- 1...Rc7
- 2.Bxc5#
- 1...Bxc6
- 2.Sxc8#
- 1...Be6
- 2.Sxe8#
- 1...Se2
- 2.Rd5#
- 1...Sg2
- 2.Rd5#
- 1...Sd3
- 2.Rd5#
- 1...Sh3
- 2.Rd5#
- 1...Sd5
- 2.Rxd5#
- 1...Sh5
- 2.Rd5#
- 1...Sfe6
- 2.Rd5#
- 1...Sg6
- 2.Rd5#
- 1...Sxc6
- 2.Sb5#
- 1...Rxc6
- Tries
- 1.Re1?
- threat
- 2.Qxd7#
- 1...Bxf5+
- 2.Sxf5#
- 1...Rxc6
- 2.Sb5#
- 1...Bxc6
- 2.Sxc8#
- 1...Sxc6
- 2.Sb5#
- 1...e6
- 2.Qxc5#
- 1...Rc7
- 2.Bxc5#
- 1...Be6
- 2.Sxe8#
- 1...Sfe6
- 2.Qd5#
- 1...Sde6
- 2.Qe5#
- 1...Se2!
- threat
- 1.Re2?
- threat
- 2.Qxd7#
- 1...Bxf5+
- 2.Sxf5#
- 1...Rxc6
- 2.Sb5#
- 1...Bxc6
- 2.Sxc8#
- 1...Sxc6
- 2.Sb5#
- 1...e6
- 2.Qxc5#
- 1...Rc7
- 2.Bxc5#
- 1...Be6
- 2.Sxe8#
- 1...Sfe6
- 2.Qd5#
- 1...Sde6
- 2.Qe5#
- 1...Sxe2!
- threat
- 1.Re3?
- threat
- 2.Qxd7#
- 1...Bxf5+
- 2.Sxf5#
- 1...Rxc6
- 2.Sb5#
- 1...Bxc6
- 2.Sxc8#
- 1...Sxc6
- 2.Sb5#
- 1...e6
- 2.Qxc5#
- 1...Rc7
- 2.Bxc5#
- 1...Be6
- 2.Sxe8#
- 1...Sfe6
- 2.Qd5#
- 1...Sde6
- 2.Qe5#
- 1...dxe3!
- threat
- 1.Re6+?
- 1...Bxe6
- 2.Sxe8#
- 1...Sfxe6
- 2.Qd5#
- 1...Sdxe6!
- 1...Bxe6
- 1.Rxe7?
- threat
- 2.Rxd7#
- 2.Qxd7#
- 1...Bxf5+
- 2.Sxf5#
- 1...Kxe7
- 2.Bxc5#
- 1...Bxc6
- 2.Sxc8#
- 2.Bxc5#
- 2.Qxc5#
- 2.Qe5#
- 1...Rc7
- 2.Bxc5#
- 1...Be6
- 2.Bxc5#
- 1...Sfe6
- 2.Rxd7#
- 1...Sde6
- 2.Rxd7#
- 1...Rxe7!
- threat
- 1.Re1?
- Keys
- 1.Re4!
- threat
- 2.Qxd7#
- 1...Bxf5+
- 2.Sxf5#
- 1...Rxc6
- 2.Sb5#
- 1...Bxc6
- 2.Sxc8#
- 1...Sxc6
- 2.Sb5#
- 1...e6
- 2.Qxc5#
- 1...Rc7
- 2.Bxc5#
- 1...Be6
- 2.Sxe8#
- 1...Sfe6
- 2.Qd5#
- 1...Sde6
- 2.Qe5#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 7
- Sets
- R(h);SBLOCK,XB(E)::S(F)
- R(h);SBLOCK::B(D),XP(d)
- B(f);N_GUARD,N_PINQ(C),SBLOCK,XB(E)::S(F),XR(h)
- B(f);N_GUARD::S(G),XR(j)
- S(c);N_GUARD::R1(B)
- S(c);N_GUARD::R1(B),XS(c)
- S(c);N_GUARD,N_PINQ(C)::R1(B)
- S(i);SBLOCK,XB(E)::S(F)
- Tries
- Try
- R(B);
- Threat
- QAR1(C),XB(f)
- Vars
- B(f);CHECK,XQ(C)::S(G),XB(f)
- R(h);SBLOCK,XB(E)::S(F)
- B(f);N_GUARD,N_PINQ(C),SBLOCK,XB(E)::S(F),XR(h)
- S(i);SBLOCK,XB(E)::S(F)
- P(g);N_PINQ(C)::QAB1(C),XP(d)
- R(h);SBLOCK::B(D),XP(d)
- B(f);N_GUARD::S(G),XR(j)
- S(c);N_PINQ(C)::QAR1(C)
- S(i);N_PINQ(C)::QAB1(C)
- Refutation
- S(c);
- Try
- R(B);
- Threat
- QAR1(C),XB(f)
- Vars
- B(f);CHECK,XQ(C)::S(G),XB(f)
- R(h);SBLOCK,XB(E)::S(F)
- B(f);N_GUARD,N_PINQ(C),SBLOCK,XB(E)::S(F),XR(h)
- S(i);SBLOCK,XB(E)::S(F)
- P(g);N_PINQ(C)::QAB1(C),XP(d)
- R(h);SBLOCK::B(D),XP(d)
- B(f);N_GUARD::S(G),XR(j)
- S(c);N_PINQ(C)::QAR1(C)
- S(i);N_PINQ(C)::QAB1(C)
- Refutation
- S(c);XR(B)
- Try
- R(B);
- Threat
- QAR1(C),XB(f)
- Vars
- B(f);CHECK,XQ(C)::S(G),XB(f)
- R(h);SBLOCK,XB(E)::S(F)
- B(f);N_GUARD,N_PINQ(C),SBLOCK,XB(E)::S(F),XR(h)
- S(i);SBLOCK,XB(E)::S(F)
- P(g);N_PINQ(C)::QAB1(C),XP(d)
- R(h);SBLOCK::B(D),XP(d)
- B(f);N_GUARD::S(G),XR(j)
- S(c);N_PINQ(C)::QAR1(C)
- S(i);N_PINQ(C)::QAB1(C)
- Refutation
- P(b);XR(B)
- Try
- R(B);CHECK,N_SPINQ(C)
- Vars
- B(f);P_PINQ(C),XR(B)::S(G),XR(j)
- S(c);XR(B)::QAR1(C)
- Refutation
- S(i);XR(B)
- Try
- R(B);XP(g)
- Threat
- DUALS(2)
- Vars
- B(f);CHECK,XQ(C)::S(G),XB(f)
- K(e);S_FLIGHT,XR(B)::B(D),XP(d)
- R(h);SBLOCK::B(D),XP(d)
- B(f);::B(D),XP(d)
- S(c);N_PINQ(C)::R1(B),XB(f)
- S(i);N_PINQ(C)::R1(B),XB(f)
- Refutation
- R(j);XR(B)
- Try
- Actual
- R(B);
- Threat
- QAR1(C),XB(f)
- Vars
- B(f);CHECK,XQ(C)::S(G),XB(f)
- R(h);SBLOCK,XB(E)::S(F)
- B(f);N_GUARD,N_PINQ(C),SBLOCK,XB(E)::S(F),XR(h)
- S(i);SBLOCK,XB(E)::S(F)
- P(g);N_PINQ(C)::QAB1(C),XP(d)
- R(h);SBLOCK::B(D),XP(d)
- B(f);N_GUARD::S(G),XR(j)
- S(c);N_PINQ(C)::QAR1(C)
- S(i);N_PINQ(C)::QAB1(C)
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).