MESON Chess Problem Database
Problem Display
PID: 251649 (8/7B/P4pNB/2Kp4/4P2R/Qp1k3p/2pPn1NR/2r5 w - - 0 1)
Dittrich, Stefan
Probleemblad, 1982
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Sxe1#
- 1...f5
- 2.Se5#
- 1...Re1
- Tries
- 1.S6f4+?
- 1...Sxf4
- 2.Sxf4#
- 1...Kxd2!
- 1...Sxf4
- 1.Qxc1?
- threat
- 2.Se1#
- 1...Sf4
- 2.S6xf4#
- 1...hxg2!
- threat
- 1.Qa4?
- threat
- 2.Qb5#
- 1...Sc3
- 2.S2f4#
- 1...Sf4
- 2.S2xf4#
- 1...Sd4!
- threat
- 1.Qa5?
- threat
- 2.Qb5#
- 1...Sd4
- 2.S6f4#
- 1...Sf4
- 2.S6xf4#
- 1...Sc3!
- threat
- 1.S6f4+?
- Keys
- 1.Qb4!
- threat
- 2.Qb5#
- 1...Sc3
- 2.S2f4#
- 1...Sd4
- 2.S6f4#
- 1...Sf4
- 2.S2xf4#
- 2.S6xf4#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 2
- Sets
- R(a);N_GUARD::S(B),XR(a)
- P(h);N_GUARD::S(I)
- Tries
- Try
- S(I);CHECK
- Vars
- S(c);XS(I)::S(B),XS(c)
- Refutation
- K(e);N_SPINP(d),P-FLIGHT,XP(A)
- Try
- Q(D);N_PINP(d),XR(a)
- Threat
- S(B)
- Vars
- S(c);N_GUARD::S(I),XS(c)
- Refutation
- P(f);XS(B)
- Try
- Q(D);N_PINP(d)
- Threat
- QAB(D)
- Vars
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(B),XS(c)
- Refutation
- S(c);
- Try
- Q(D);N_PINP(d)
- Threat
- QAB(D)
- Vars
- S(c);N_GUARD::S(I)
- S(c);N_GUARD::S(I),XS(c)
- Refutation
- S(c);
- Try
- Actual
- Q(D);N_PINP(d)
- Threat
- QAB(D)
- Vars
- S(c);N_GUARD::S(B)
- S(c);N_GUARD::S(I)
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).