MESON Chess Problem Database
Problem Display
PID: 267052 (8/4r3/4p3/Q3n3/P2kp2R/1P3R2/4P3/5K2 w - - 0 1)
Castellari, Umberto
Schakend Nederland, 1962
#2
7 + 5
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Sd3
- 2.Rxd3#
- 2.e3#
- 1...Sc4
- 2.Rd3#
- 1...Sc6
- 2.Rd3#
- 1...Sg6
- 2.Rd3#
- 1...Sd7
- 2.Rd3#
- 1...Sf7
- 2.Rd3#
- 1...Sd3
- Tries
- 1.Rc3?
- threat
- 2.Qc5#
- 2.e3#
- 1...Sd3
- 2.Rxd3#
- 1...Rc7
- 2.e3#
- 1...Sc4
- 2.Rd3#
- 1...Sg4
- 2.Qc5#
- 1...Sd7
- 2.Rd3#
- 2.e3#
- 1...Rf7+!
- threat
- 1.Rc3?
- Keys
- 1.Rh5!
- threat
- 2.Qxe5#
- 1...Sxf3
- 2.Qc5#
- 1...Sd3
- 2.e3#
- 1...Sc4
- 2.Qc3#
- 2.Qc5#
- 1...Sg4
- 2.Qd2#
- 2.Qc3#
- 2.Qb4#
- 2.Qb6#
- 2.Qc5#
- 1...Sc6
- 2.Qd2#
- 2.Qc3#
- 2.Qb6#
- 2.Qc5#
- 1...Sg6
- 2.Qd2#
- 2.Qc3#
- 2.Qb4#
- 2.Qb6#
- 2.Qc5#
- 1...Sd7
- 2.Qd2#
- 2.Qc3#
- 2.Qb4#
- 1...Sf7
- 2.Qd2#
- 2.Qc3#
- 2.Qb4#
- 2.Qb6#
- 2.Qc5#
- threat
- 1.Rh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 5
- Sets
- S(c);N_GUARD::R1(D)
- Tries
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- S(c);N_GUARD::R1(D),XS(c)
- R(e);::P(B)
- S(c);N_GUARD::R1(D)
- S(c);N_SPINP(b)::QAB1(G)
- Refutation
- R(e);CHECK
- Try
- Actual
- R(F);N_PINP(b)
- Threat
- QAB1(G),XS(c)
- Vars
- S(c);XR(D)::QAB1(G)
- S(c);SBLOCK::P(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).