MESON Chess Problem Database
Problem Display
PID: 102866 (4B1K1/1N2p2p/4k1p1/3r2P1/2P2Q2/8/8/6b1 w - - 0 1)
Hoffmann, Fritz
Mat, 1972
#2
6 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Rd4
- 2.Sc5#
- 1...Ra5
- 2.Sd8#
- 1...Rb5
- 2.Sd8#
- 1...Rc5
- 2.Sd8#
- 1...Re5
- 2.Qf7#
- 1...Rf5
- 2.Sd8#
- 1...Rxg5
- 2.Sd8#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Bf7#
- 2.Qe4#
- 1...Rd8
- 2.Sxd8#
- 2.Qe4#
- 1...Rd1
- Tries
- 1.Bd7+?
- 1...Rxd7
- 2.Qe4#
- 1...Kxd7!
- 1...Rxd7
- 1.Bd7+?
- Keys
- 1.Bc6!
- threat
- 2.cxd5#
- 1...Rd8+
- 2.Sxd8#
- 1...Rxg5
- 2.Sd8#
- 1...Rd1
- 2.Qe4#
- 1...Rd2
- 2.Qe4#
- 1...Rd3
- 2.Qe4#
- 1...Rd4
- 2.Sc5#
- 1...Ra5
- 2.Sd8#
- 1...Rb5
- 2.Sd8#
- 1...Rc5
- 2.Sd8#
- 1...Re5
- 2.Qf7#
- 1...Rf5
- 2.Sd8#
- 1...Rd6
- 2.Qe4#
- 1...Rd7
- 2.Qe4#
- threat
- 1.Bc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::QAR2(B)
- R(b);N_GUARD,S_CUTB(a)::S(D)
- R(b);N_GUARD::S(D)
- R(b);SBLOCK::QAB1(B)
- R(b);N_GUARD,XP(C)::S(D)
- Tries
- Try
- B(E);CHECK
- Vars
- R(b);SBLOCK,XB(E)::QAR2(B)
- Refutation
- K(c);S_FLIGHT,XB(E)
- Try
- Actual
- B(E);
- Threat
- P(A),XR(b)
- Vars
- R(b);CHECK,N_GUARD::S(D),XR(b)
- R(b);N_GUARD,XP(C)::S(D)
- R(b);N_GUARD::QAR2(B)
- R(b);N_GUARD,S_CUTB(a)::S(D)
- R(b);N_GUARD::S(D)
- R(b);SBLOCK::QAB1(B)
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).