MESON Chess Problem Database
Problem Display
PID: 89850 (1b5n/n2K1B2/1pp2p2/4kp2/1Q1R4/8/r1p5/5b2 w - - 0 1)
Jaeger, Hartmut
Die Schwalbe, 1998
#2
4 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bd6
- 2.Qxd6#
- 1...b5
- 2.Qc5#
- 1...c5
- 2.Rd5#
- 1...Bd6
- Tries
- 1.Rg4?
- threat
- 2.Qc3#
- 2.Qe7#
- 2.Qd4#
- 2.Qf4#
- 1...Sxf7
- 2.Qd4#
- 1...f4
- 2.Qxf4#
- 1...c1Q
- 2.Qe7#
- 2.Qd4#
- 1...c1B
- 2.Qc3#
- 2.Qe7#
- 2.Qd4#
- 1...c1R
- 2.Qe7#
- 2.Qd4#
- 2.Qf4#
- 1...Ra3
- 2.Qe7#
- 2.Qd4#
- 2.Qf4#
- 1...Ra4
- 2.Qe7#
- 1...Bc4
- 2.Qc3#
- 1...Bd6
- 2.Qc3#
- 2.Qxd6#
- 2.Qd4#
- 2.Qf4#
- 1...Sb5
- 2.Qe7#
- 2.Qf4#
- 1...Sc8
- 2.Qc3#
- 2.Qd4#
- 2.Qf4#
- 1...Sg6
- 2.Qc3#
- 2.Qd4#
- 1...c5
- 2.Qc3#
- 2.Qf4#
- 1...fxg4!
- threat
- 1.Rg4?
- Keys
- 1.Rh4!
- threat
- 2.Qc3#
- 2.Qe7#
- 2.Qd4#
- 2.Qf4#
- 1...Sxf7
- 2.Qd4#
- 1...f4
- 2.Qxf4#
- 1...c1Q
- 2.Qe7#
- 2.Qd4#
- 1...c1B
- 2.Qc3#
- 2.Qe7#
- 2.Qd4#
- 1...c1R
- 2.Qe7#
- 2.Qd4#
- 2.Qf4#
- 1...Ra3
- 2.Qe7#
- 2.Qd4#
- 2.Qf4#
- 1...Ra4
- 2.Qe7#
- 1...Bc4
- 2.Qc3#
- 1...Bd6
- 2.Qc3#
- 2.Qxd6#
- 2.Qd4#
- 2.Qf4#
- 1...Sb5
- 2.Qe7#
- 2.Qf4#
- 1...Sc8
- 2.Qc3#
- 2.Qd4#
- 2.Qf4#
- 1...Sg6
- 2.Qc3#
- 2.Qd4#
- 1...c5
- 2.Qc3#
- 2.Qf4#
- threat
- 1.Rh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- B(j);N_GUARD::QAB1(A),XB(j)
- P(f);N_GUARD::QAR2(A)
- P(g);N_GUARD::R1(B)
- Tries
- Try
- R(B);
- Threat
- DUALS(4)
- Vars
- S(k);XB(D)::QAB1(A)
- P(e);::QAB1(A),XP(e)
- R(b);::QAR2(A)
- B(a);::QAB(A)
- Refutation
- P(e);XR(B)
- Try
- Actual
- R(B);
- Threat
- DUALS(4)
- Vars
- S(k);XB(D)::QAB1(A)
- P(e);::QAB1(A),XP(e)
- R(b);::QAR2(A)
- B(a);::QAB(A)
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).