MESON Chess Problem Database
Problem Display
PID: 194276 (2r1n1Bq/p7/8/5p1r/1Qpk4/5P2/1P2R3/K1N2n2 w - - 0 1)
Beach, Lennox F
Pittsburgh Gazette-Times, 1917
#2
7 + 9
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rc5
- 2.Qc3#
- 1...Ra8
- 2.Qxc4#
- 1...Rb8
- 2.Qxc4#
- 1...Rd8
- 2.Qxc4#
- 1...Sd6
- 2.Qxd6#
- 1...Sc7
- 2.Qxc4#
- 1...Sg7
- 2.Qd6#
- 1...f4
- 2.Re4#
- 1...Rc5
- Tries
- 1.Qb5?
- threat
- 2.Qd5#
- 1...Qxg8
- 2.Qe5#
- 1...Qe5
- 2.Qxe5#
- 1...Rd8
- 2.Qxc4#
- 1...Se3
- 2.Rd2#
- 1...Sf6
- 2.Qe5#
- 1...Sc7
- 2.Qxc4#
- 1...f4
- 2.Re4#
- 1...Rc5!
- threat
- 1.Qb5?
- Keys
- 1.Qa5!
- threat
- 2.Qd5#
- 1...Qxg8
- 2.Qe5#
- 1...Qe5
- 2.Qxe5#
- 1...Rc5
- 2.Qc3#
- 1...Rd8
- 2.Qxa7#
- 1...Se3
- 2.Rd2#
- 1...Sf6
- 2.Qe5#
- 1...Sc7
- 2.Qxa7#
- 1...f4
- 2.Re4#
- threat
- 1.Qa5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 4
- REMOVED MATES = 4
- Sets
- R(g);SBLOCK::QAB1(F)
- R(g);N_GUARD::QAR1(F),XP(b)
- S(h);N_GUARD::QAR2(F),XS(h)
- S(h);S_CUTR(g)::QAR1(F),XP(b)
- S(h);N_GUARD::QAR2(F)
- P(d);N_GUARD::R1(D)
- Tries
- Try
- Q(F);N_PINP(b)
- Threat
- QAR1(F)
- Vars
- Q(i);N_GUARD,XB(G)::QAB1(F)
- Q(i);N_GUARD::QAB1(F),XQ(i)
- R(g);N_GUARD::QAR1(F),XP(b)
- S(a);N_GUARD,SBLOCK::R(D)
- S(h);S_CUTQ(i)::QAB1(F)
- S(h);S_CUTR(g)::QAR1(F),XP(b)
- P(d);N_GUARD::R1(D)
- Refutation
- R(g);
- Try
- Actual
- Q(F);N_PINP(b)
- Threat
- QAR1(F)
- Vars
- Q(i);N_GUARD,XB(G)::QAB1(F)
- Q(i);N_GUARD::QAB1(F),XQ(i)
- R(g);SBLOCK::QAB1(F)
- R(g);N_GUARD::QAB(F),XP(f)
- S(a);N_GUARD,SBLOCK::R(D)
- S(h);S_CUTQ(i)::QAB1(F)
- S(h);S_CUTR(g)::QAB(F),XP(f)
- P(d);N_GUARD::R1(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).