MESON Chess Problem Database
Problem Display
PID: 137160 (6qr/5P1n/1nQ5/3rk3/5Rp1/4N1K1/8/8 w - - 0 1)
Glynn, James Joseph
Australasian Chess Magazine, 1919
#2
5 + 7
SOLUTION
- SOUND
- Sets
- 1...Qxf7
- 2.Sxg4#
- 1...Qa8
- 2.Sxg4#
- 1...Qb8
- 2.Sxg4#
- 1...Qd8
- 2.Sxg4#
- 1...Qe8
- 2.Sxg4#
- 1...Qf8
- 2.Sxg4#
- 1...Rd1
- 2.Re4#
- 1...Rd2
- 2.Re4#
- 1...Rd3
- 2.Re4#
- 1...Rd4
- 2.Rf5#
- 1...Ra5
- 2.Re4#
- 1...Rb5
- 2.Re4#
- 1...Rc5
- 2.Re4#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Re4#
- 1...Rd8
- 2.Re4#
- 1...Sa4
- 2.Sc4#
- 2.Qxd5#
- 1...Sc4
- 2.Sxc4#
- 2.Qxd5#
- 1...Sd7
- 2.Sc4#
- 2.Qxd5#
- 1...Sa8
- 2.Sc4#
- 2.Qxd5#
- 1...Sc8
- 2.Sc4#
- 2.Qxd5#
- 1...Sg5
- 2.Sxg4#
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sf8
- 2.Qf6#
- 1...Qxf7
- Tries
- 1.fxg8Q?
- threat
- 2.Sxg4#
- 2.Qge6#
- 2.Qce6#
- 1...Rd3
- 2.Re4#
- 2.Qge6#
- 2.Qce6#
- 1...Rd6
- 2.Sxg4#
- 2.Qe4#
- 1...Sg5
- 2.Sxg4#
- 2.Qf6#
- 2.Qxg5#
- 2.Qg7#
- 2.Qxh8#
- 1...Sf6
- 2.Qge6#
- 2.Qce6#
- 2.Qxf6#
- 2.Qg5#
- 1...Sf8
- 2.Sxg4#
- 2.Qf6#
- 2.Qg5#
- 2.Qg7#
- 2.Qxh8#
- 1...Rxg8!
- threat
- 1.fxg8S?
- threat
- 2.Sxg4#
- 1...Rd6
- 2.Re4#
- 2.Qe4#
- 1...Rd3
- 2.Re4#
- 1...Sf6
- 2.Qxf6#
- 1...Rxg8!
- threat
- 1.fxg8B?
- threat
- 2.Sxg4#
- 2.Qe6#
- 1...Rd3
- 2.Re4#
- 2.Qe6#
- 1...Rd6
- 2.Sxg4#
- 2.Qe4#
- 1...Sg5
- 2.Sxg4#
- 2.Qf6#
- 1...Sf6
- 2.Qe6#
- 2.Qxf6#
- 1...Sf8
- 2.Sxg4#
- 2.Qf6#
- 1...Rxg8!
- threat
- 1.fxg8R?
- threat
- 2.Sxg4#
- 1...Rd6
- 2.Qe4#
- 1...Rd3
- 2.Re4#
- 1...Sf6
- 2.Rg5#
- 2.Qxf6#
- 1...Rxg8!
- threat
- 1.fxg8Q?
- Keys
- 1.f8S!
- 1...Qxf8
- 2.Sxg4#
- 1...Sxf8
- 2.Qf6#
- 1...Qg5
- 2.Qe6#
- 1...Qe6
- 2.Qxe6#
- 1...Qf7
- 2.Sxg4#
- 1...Qg6
- 2.Sxg6#
- 1...Qg7
- 2.Qe6#
- 1...Rd1
- 2.Re4#
- 1...Rd2
- 2.Re4#
- 1...Rd3
- 2.Re4#
- 1...Rd4
- 2.Rf5#
- 1...Ra5
- 2.Re4#
- 2.Qc7#
- 1...Rb5
- 2.Re4#
- 2.Qc7#
- 1...Rc5
- 2.Re4#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Re4#
- 1...Rd8
- 2.Re4#
- 1...Sa4
- 2.Sc4#
- 1...Sc4
- 2.Sxc4#
- 1...Sd7
- 2.Sc4#
- 1...Sa8
- 2.Sc4#
- 1...Sc8
- 2.Sc4#
- 1...Sg5
- 2.Sxg4#
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Qxf8
- 1.f8S!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 6
- Sets
- Q(f);N_GUARD,XP(E)::S(A),XP(a)
- Q(f);N_GUARD::S(A),XP(a)
- R(b);::R1(C)
- R(b);P_PINS(A)::R1(C)
- R(b);SBLOCK::R1(C)
- R(b);OGATE,SBLOCK::QAR1(D)
- S(e);N_GUARD::QAB1(D),XS(e)
- S(e);N_GUARD::QAB1(D)
- Tries
- Try
- P(E);XQ(f)
- Threat
- DUALS(3)
- Refutation
- R(g);XQ(E)
- Try
- P(E);XQ(f)
- Threat
- S(A),XP(a)
- Vars
- R(b);P_PINS(A)::R1(C)
- S(e);N_GUARD::QAB1(D),XS(e)
- Refutation
- R(g);XS(E)
- Try
- P(E);XQ(f)
- Threat
- DUALS(2)
- Refutation
- R(g);XB(E)
- Try
- P(E);XQ(f)
- Threat
- S(A),XP(a)
- Vars
- R(b);OGATE,SBLOCK::QAR1(D)
- R(b);P_PINS(A)::R1(C)
- Refutation
- R(g);XR(E)
- Try
- Actual
- P(E);
- Vars
- Q(f);N_GUARD,XS(E)::S(A),XP(a)
- S(e);N_GUARD,XS(E)::QAB1(D)
- Q(f);N_GUARD::QAR1(D)
- Q(f);N_GUARD::QAR1(D),XQ(f)
- Q(f);N_GUARD::S(A),XP(a)
- Q(f);N_GUARD::S(E),XQ(f)
- R(b);::R1(C)
- R(b);P_PINS(A)::R1(C)
- R(b);SBLOCK::R1(C)
- R(b);OGATE,SBLOCK::QAR1(D)
- S(d);N_GUARD::S(A)
- S(d);N_GUARD::S(A),XS(d)
- S(e);N_GUARD::QAB1(D),XS(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).