MESON Chess Problem Database
Problem Display
PID: 22419 (3N4/2Q1p2K/5k1n/2n1N3/3r2PP/2B5/8/8 w - - 0 1)
Blackburne, SS
The Times Weekly Edition, 0000
#2
7 + 5
| 2794 | Terms & Themes of Chess Problems | 1907 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Sd7#
- 1...Rd2
- 2.Sd7#
- 1...Rd3
- 2.Sd7#
- 1...Ra4
- 2.Sd7#
- 1...Rb4
- 2.Sd7#
- 1...Rc4
- 2.Sd7#
- 1...Re4
- 2.Sd7#
- 1...Rf4
- 2.Sd7#
- 1...Rd5
- 2.Sd7#
- 1...Rd6
- 2.Sd7#
- 1...Rd7
- 2.Sxd7#
- 1...Sb3
- 2.Sd7#
- 1...Sd3
- 2.Sd7#
- 1...Sa4
- 2.Sd7#
- 1...Se4
- 2.Sd7#
- 1...Sa6
- 2.Sd7#
- 1...Se6
- 2.Sd7#
- 1...Sb7
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...Sf5
- 2.g5#
- 1...e6
- 2.Qg7#
- 1...Rd1
- Tries
- 1.Sec6?
- threat
- 2.Qe5#
- 2.Qxe7#
- 1...Sxg4
- 2.Qf4#
- 1...Sd3
- 2.Qxe7#
- 1...Sf5
- 2.Qe5#
- 2.g5#
- 1...Sf7
- 2.Qf4#
- 2.Qxe7#
- 1...Sg8
- 2.Qf4#
- 2.Qe5#
- 1...e5
- 2.Qxe5#
- 2.Qe7#
- 2.Qg7#
- 1...e6
- 2.Qe5#
- 2.Qe7#
- 2.Qg7#
- 1...Sd7!
- threat
- 1.Sg6?
- threat
- 2.Qe5#
- 2.Qxe7#
- 1...Sxg4
- 2.Qf4#
- 1...Sd3
- 2.Qxe7#
- 1...Sf5
- 2.Qe5#
- 2.g5#
- 1...Sf7
- 2.Qf4#
- 2.Qxe7#
- 1...Sg8
- 2.Qf4#
- 2.Qe5#
- 1...e5
- 2.Qxe5#
- 2.Qe7#
- 2.Qg7#
- 1...e6
- 2.Qe5#
- 2.Qe7#
- 2.Qg7#
- 1...Sd7!
- threat
- 1.Bxd4?
- threat
- 2.Sd7#
- 1...Sd7
- 2.Sxd7#
- 1...e6
- 2.Qg7#
- 1...Sxg4!
- threat
- 1.Qxc5?
- threat
- 2.Sd7#
- 1...Rd7
- 2.Sxd7#
- 1...Rxd8!
- threat
- 1.Sec6?
- Keys
- 1.Qd7!
- 1...Kxe5
- 2.Qxd4#
- 1...Rxg4
- 2.Sxg4#
- 1...Rxd7
- 2.Sxd7#
- 1...Sxd7
- 2.Sxd7#
- 1...Sxg4
- 2.Sxg4#
- 1...Rd1
- 2.g5#
- 1...Rd2
- 2.g5#
- 1...Rd3
- 2.g5#
- 1...Ra4
- 2.g5#
- 1...Rb4
- 2.g5#
- 1...Rc4
- 2.g5#
- 1...Re4
- 2.g5#
- 1...Rf4
- 2.g5#
- 1...Rd5
- 2.g5#
- 1...Rd6
- 2.g5#
- 1...Sb3
- 2.Qe6#
- 1...Sd3
- 2.Qe6#
- 1...Sa4
- 2.Qe6#
- 1...Se4
- 2.Qe6#
- 1...Sa6
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sb7
- 2.Qe6#
- 1...Sf5
- 2.Qxf5#
- 1...Sf7
- 2.Qf5#
- 1...Sg8
- 2.Qf5#
- 1...e6
- 2.Qg7#
- 1...Kxe5
- 1.Qd7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 18
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(a);::B(A)+S(D),DCHECK
- R(a);::B(A)+S(D),DCHECK,XR(a)
- S(b);N_GUARD::S(D)
- S(b);N_GUARD::S(D),XS(b)
- S(d);SBLOCK::P(B)
- P(e);OGATE::QAB1(E)
- Tries
- Try
- S(D);P_PINR(a)
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD,XP(B)::QAR2(E)
- S(b);::QAB1(E),XP(e)
- Refutation
- S(b);
- Try
- S(D);P_PINR(a)
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD,XP(B)::QAR2(E)
- S(b);::QAB1(E),XP(e)
- Refutation
- S(b);
- Try
- B(A);XR(a)
- Threat
- B(A)+S(D),DCHECK
- Vars
- S(b);::B(A)+S(D),DCHECK,XS(b)
- P(e);OGATE::QAB1(E)
- Refutation
- S(d);XP(B)
- Try
- Q(E);XS(b)
- Threat
- S(D)
- Vars
- R(a);::B(A)+S(D),DCHECK,XR(a)
- Refutation
- R(a);XS(G)
- Try
- Actual
- Q(E);
- Vars
- K(c);OGATEB,P_SPINR(a),S_FLIGHT,XS(D)::QAB1(E),XR(a)
- R(a);XP(B)::B(A)+S(D),DCHECK,XR(a)
- R(a);XQ(E)::B(A)+S(D),DCHECK,XR(a)
- S(b);XQ(E)::S(D),XS(b)
- S(d);XP(B)::S(D),XS(d)
- R(a);::P(B)
- S(b);N_GUARD::QAR1(E)
- S(b);N_GUARD::QAR1(E),XS(b)
- S(d);N_GUARD::QAR1(E),XS(d)
- S(d);N_GUARD::QAR1(E)
- P(e);OGATE::QAB1(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).