MESON Chess Problem Database
Problem Display
PID: 198357 (B2N1KQ1/p7/qR2p1p1/Ppk1pN2/5n1r/PP5p/3R4/n7 w - - 0 1)
Beechey, H
Brisbane Courier, 1920
#2
10 + 11
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Qb7
- 2.Sxb7#
- 1...Qxa5
- 2.Rc6#
- 1...Sc2
- 2.Rxc2#
- 1...Sxb3
- 2.Rc2#
- 1...Se2
- 2.Sxe6#
- 1...Sg2
- 2.Sxe6#
- 1...Sd3
- 2.Sxe6#
- 1...Sd5
- 2.Sxe6#
- 1...Sh5
- 2.Sxe6#
- 1...b4
- 2.axb4#
- 1...exf5
- 2.b4#
- 1...gxf5
- 2.Qg1#
- 1...Qb7
- Tries
- 1.Sg3?
- threat
- 2.Se4#
- 1...Qxa5
- 2.Rc6#
- 1...Sd3
- 2.Sxe6#
- 1...Qb7
- 2.Sxb7#
- 1...Se2
- 2.Sxe6#
- 1...Sg2
- 2.Sxe6#
- 1...Sd5
- 2.Sxe6#
- 1...Sh5
- 2.Sxe6#
- 1...e4
- 2.Sxe4#
- 1...Sxb3!
- threat
- 1.Sd6?
- threat
- 2.Se4#
- 2.b4#
- 1...Qxa5
- 2.Rc6#
- 1...Sd3
- 2.Sxe6#
- 1...Qb7
- 2.S6xb7#
- 2.S8xb7#
- 2.b4#
- 1...Sc2
- 2.Se4#
- 1...Se2
- 2.Sxe6#
- 1...Sg2
- 2.Sxe6#
- 1...Sd5
- 2.Sxe6#
- 1...Sh5
- 2.Sxe6#
- 1...b4
- 2.Se4#
- 2.axb4#
- 1...e4
- 2.Sxe4#
- 2.b4#
- 1...Sxb3!
- threat
- 1.Rd5+?
- 1...Sxd5
- 2.Sxe6#
- 1...exd5!
- 1...Sxd5
- 1.Rxa6?
- threat
- 2.Sb7#
- 2.Rc6#
- 1...Sxb3
- 2.Rc2#
- 2.Rc6#
- 1...Rh7
- 2.Rc6#
- 1...Sd3
- 2.Sxe6#
- 1...b4!
- threat
- 1.Qxe6?
- threat
- 2.Qc6#
- 2.Qd6#
- 2.Qe7#
- 2.b4#
- 1...Sxe6+
- 2.Sxe6#
- 1...Qxa5
- 2.Sb7#
- 2.Rc6#
- 2.Qc6#
- 2.Qd6#
- 1...Qxb6
- 2.b4#
- 1...Sxb3
- 2.Rc2#
- 2.Qc6#
- 1...Qb7
- 2.Sxb7#
- 2.Qd6#
- 2.b4#
- 1...Qc8
- 2.Qxc8#
- 2.Qd6#
- 2.Qe7#
- 2.b4#
- 1...Rh7
- 2.Qc6#
- 2.Qd6#
- 2.b4#
- 1...Sc2
- 2.Rxc2#
- 2.Qc6#
- 2.Qd6#
- 2.Qe7#
- 1...Se2
- 2.Rd5#
- 2.Qd5#
- 2.Qxe5#
- 2.Qc6#
- 2.Qd6#
- 2.Qe7#
- 1...Sg2
- 2.Rd5#
- 2.Qd5#
- 2.Qxe5#
- 2.Qc6#
- 2.Qd6#
- 2.Qe7#
- 1...Sd3
- 2.Qd5#
- 2.Qc6#
- 2.Qd6#
- 2.Qe7#
- 1...Sd5
- 2.Rxd5#
- 2.Qxd5#
- 2.Qc6#
- 2.Qd6#
- 1...Sh5
- 2.Rd5#
- 2.Qd5#
- 2.Qxe5#
- 2.Qc6#
- 2.Qd6#
- 2.Qe7#
- 1...b4
- 2.Qc6#
- 2.Qd6#
- 2.Qe7#
- 2.axb4#
- 1...Rh8+!
- threat
- 1.Sg3?
- Keys
- 1.Rd3!
- threat
- 2.Rc3#
- 1...Qxa5
- 2.Rc6#
- 1...Sxd3
- 2.Sxe6#
- 1...exf5
- 2.b4#
- 1...gxf5
- 2.Qg1#
- 1...Qb7
- 2.Sxb7#
- 1...Se2
- 2.Sxe6#
- 1...Sg2
- 2.Sxe6#
- 1...Sd5
- 2.Sxe6#
- 1...Sh5
- 2.Sxe6#
- 1...b4
- 2.axb4#
- threat
- 1.Rd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- Q(h);N_GUARD::S(H),XQ(h)
- Q(h);N_GUARD,XP(D)::R1(F)
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD,XP(C)::R(A)
- S(c);N_GUARD::S(H),XP(i)
- P(e);OGATE::P(B),XP(e)
- P(i);XS(E)::P(C)
- P(j);OGATE,XS(E)::QAB(J)
- Tries
- Try
- S(E);
- Threat
- S(E)
- Vars
- Q(h);N_GUARD,XP(D)::R1(F)
- S(c);N_GUARD::S(H),XP(i)
- Q(h);N_GUARD::S(H),XQ(h)
- P(g);::S(E),XP(g)
- Refutation
- S(a);XP(C)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- Q(h);N_GUARD,XP(D)::R1(F)
- S(c);N_GUARD::S(H),XP(i)
- S(a);::S(E)
- Refutation
- S(a);XP(C)
- Try
- R(A);CHECK
- Vars
- S(c);XR(A)::S(H),XP(i)
- Refutation
- P(i);XR(A)
- Try
- R(F);XQ(h)
- Threat
- DUALS(2)
- Vars
- R(d);::R1(F)
- S(c);N_GUARD::S(H),XP(i)
- Refutation
- P(e);
- Try
- Q(J);XP(i)
- Threat
- DUALS(4)
- Vars
- S(c);CHECK,XQ(J)::S(H),XS(c)
- Q(h);XR(F)::P(C)
- Refutation
- R(d);CHECK
- Try
- Actual
- R(A);
- Threat
- R(A)
- Vars
- Q(h);N_GUARD,XP(D)::R1(F)
- S(c);N_GUARD,XR(A)::S(H),XP(i)
- P(i);XS(E)::P(C)
- P(j);OGATE,XS(E)::QAB(J)
- Q(h);N_GUARD::S(H),XQ(h)
- S(c);N_GUARD::S(H),XP(i)
- P(e);OGATE::P(B),XP(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).