MESON Chess Problem Database
Problem Display
PID: 193597 (2q3N1/2b2B2/1p1P3n/r4kp1/RQ6/6B1/pK5N/rb6 w - - 0 1)
Wainwright, Joseph CJ
Pittsburgh Gazette-Times, 1915
#2
8 + 10
| 6490 | yacpdb | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Qxb5#
- 1...Ra6
- 2.Qb5#
- 1...Ra7
- 2.Qb5#
- 1...Ra8
- 2.Qb5#
- 1...Be4
- 2.Qxe4#
- 1...Sg4
- 2.Qxg4#
- 1...g4
- 2.Qf4#
- 1...b5
- 2.Qc5#
- 1...Rb5
- Tries
- 1.Rxa5+?
- 1...b5
- 2.Rxb5#
- 1...bxa5!
- 1...b5
- 1.Qc3?
- threat
- 2.Sxh6#
- 2.Se7#
- 2.Qf6#
- 2.Qf3#
- 1...Qxg8
- 2.Qf3#
- 1...Rxa4
- 2.Qe5#
- 1...Bxd6
- 2.Sxh6#
- 2.Qf6#
- 2.Qxc8#
- 1...Sxf7
- 2.Qf6#
- 1...Sxg8
- 2.Qf3#
- 1...g4
- 2.Qf6#
- 1...Qe6
- 2.Qf3#
- 1...Qb7
- 2.Sxh6#
- 2.Se7#
- 2.Qf6#
- 1...Qd7
- 2.Sxh6#
- 2.Qf6#
- 2.Qf3#
- 1...Qa8
- 2.Sxh6#
- 2.Se7#
- 2.Qf6#
- 1...Qd8
- 2.Sxh6#
- 2.Qf3#
- 1...Qe8
- 2.Sxh6#
- 2.Qf6#
- 2.Qf3#
- 1...Qf8
- 2.Qf6#
- 2.Qf3#
- 1...Re5
- 2.Qxe5#
- 2.Qf3#
- 1...Bd3
- 2.Sxh6#
- 2.Se7#
- 2.Qf6#
- 2.Qxd3#
- 1...Be4
- 2.Sxh6#
- 2.Se7#
- 2.Qf6#
- 1...Bd8
- 2.Sxh6#
- 2.Qf3#
- 2.Qxc8#
- 1...Sg4
- 2.Se7#
- 2.Qf3#
- 1...Rb5+!
- threat
- 1.Qxa5+?
- 1...b5
- 2.Qxb5#
- 1...bxa5!
- 1...b5
- 1.Qd4?
- threat
- 2.Sxh6#
- 2.Se7#
- 2.Qf2#
- 2.Qf6#
- 1...Qxg8
- 2.Qf2#
- 1...Rxa4
- 2.Sxh6#
- 2.Se7#
- 2.Qe5#
- 2.Qd5#
- 1...Bxd6
- 2.Sxh6#
- 2.Qf6#
- 1...Sxf7
- 2.Qf6#
- 1...Sxg8
- 2.Qf2#
- 1...g4
- 2.Qf6#
- 2.Qf4#
- 1...Qe6
- 2.Qf2#
- 1...Qb7
- 2.Sxh6#
- 2.Se7#
- 2.Qf6#
- 1...Qd7
- 2.Sxh6#
- 2.Qf2#
- 2.Qf6#
- 1...Qa8
- 2.Sxh6#
- 2.Se7#
- 2.Qf6#
- 1...Qd8
- 2.Sxh6#
- 2.Qf2#
- 1...Qe8
- 2.Sxh6#
- 2.Qf2#
- 2.Qf6#
- 1...Qf8
- 2.Qf2#
- 2.Qf6#
- 1...Re5
- 2.Qf2#
- 2.Qxe5#
- 1...Be4
- 2.Sxh6#
- 2.Se7#
- 2.Qf6#
- 2.Qxe4#
- 1...Bd8
- 2.Sxh6#
- 2.Qf2#
- 1...Sg4
- 2.Se7#
- 2.Qxg4#
- 1...Rb5+!
- threat
- 1.Rxa5+?
- Keys
- 1.Qc4!
- threat
- 2.Qf1#
- 1...Rb5+
- 2.Qxb5#
- 1...Rxa4
- 2.Qd5#
- 1...Bxd6
- 2.Qxc8#
- 1...Sxf7
- 2.Qxf7#
- 1...g4
- 2.Qf4#
- 1...Qa6
- 2.Qe6#
- 1...Qb7
- 2.Qe6#
- 1...Qa8
- 2.Qe6#
- 1...Bc2
- 2.Qxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.Qxe4#
- 1...Sg4
- 2.Qxg4#
- threat
- 1.Qc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 4
- Sets
- R(d);N_GUARD,P_PINQ(E)::QAR(E),XR(d)
- R(d);N_GUARD::QAR(E)
- B(b);N_GUARD::QAB1(E),XB(b)
- S(h);N_GUARD::QAB1(E),XS(h)
- P(f);N_GUARD::QAR1(E)
- P(g);N_GUARD,S_CUTR(d)::QAR(E)
- Tries
- Try
- R(D);CHECK,XR(d)
- Vars
- P(g);P_SPINP(g)::R(D),XP(g)
- Refutation
- P(g);XR(D)
- Try
- Q(E);
- Threat
- DUALS(4)
- Vars
- Q(j);XS(H)::QAR2(E)
- R(d);N_GUARD,XR(D)::QAR1(E)
- S(h);XB(G)::QAR1(E)
- S(h);XS(H)::QAR2(E)
- P(f);::QAR1(E)
- Q(j);::QAR2(E)
- Refutation
- R(d);CHECK
- Try
- Q(E);CHECK,XR(d)
- Vars
- P(g);P_SPINP(g)::QAR(E),XP(g)
- Refutation
- P(g);XQ(E)
- Try
- Q(E);
- Threat
- DUALS(4)
- Vars
- Q(j);XS(H)::QAR(E)
- S(h);XB(G)::QAR1(E)
- S(h);XS(H)::QAR(E)
- Q(j);::QAR(E)
- Refutation
- R(d);CHECK
- Try
- Actual
- Q(E);
- Threat
- QAR(E)
- Vars
- R(d);CHECK,N_GUARD::QAR(E),XR(d)
- R(d);N_GUARD,XR(D)::QAR2(E)
- B(i);OGATE,XP(F)::QAB(E),XQ(j)
- S(h);OGATE,XB(G)::QAR2(E),XS(h)
- P(f);N_GUARD::QAR1(E)
- Q(j);N_GUARD::QAB1(E)
- B(b);N_GUARD::QAB(E),XB(b)
- B(b);N_GUARD::QAB1(E),XB(b)
- S(h);N_GUARD::QAB1(E),XS(h)
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).