MESON Chess Problem Database
Problem Display
PID: 266890 (8/1K4Bb/2R5/pp1k1p2/qr4QR/4n3/1n6/bB2r3 w - - 0 1)
Castellari, Umberto
Preziosi, Bruno
4th Comm., El Ajedrez Espanol, 1957
#2
6 + 11
| 15601 | Albrecht-Leiss-Degener Collection | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Sbc4
- 2.Qf3#
- 1...Sec4
- 2.Qd4#
- 1...f4
- 2.Qe6#
- 2.Qd7#
- 1...Sbc4
- Tries
- 1.Be4+?
- 1...fxe4
- 2.Qe6#
- 2.Qd7#
- 1...Rxe4!
- 1...fxe4
- 1.Rhh6?
- threat
- 2.Rhd6#
- 1...Sbc4
- 2.Qf3#
- 1...Sec4
- 2.Qd4#
- 1...Bg6!
- threat
- 1.Qxb4?
- threat
- 2.Rd4#
- 2.Rd6#
- 2.Qc5#
- 2.Qd6#
- 1...axb4
- 2.Rd4#
- 1...Qd1
- 2.Rd6#
- 2.Qc5#
- 2.Qd6#
- 2.Qxb5#
- 1...Qc2
- 2.Rd4#
- 2.Rd6#
- 2.Qd6#
- 2.Qd4#
- 1...Qa3
- 2.Rd4#
- 2.Rd6#
- 2.Qd4#
- 1...Rc1
- 2.Rd4#
- 2.Rd6#
- 2.Qd6#
- 1...Rd1
- 2.Rd6#
- 2.Qc5#
- 2.Qd6#
- 1...Sbd1
- 2.Rd6#
- 2.Qc5#
- 2.Qd6#
- 1...Sd3
- 2.Rd6#
- 2.Qd6#
- 1...Sbc4
- 2.Qc5#
- 1...Sc2
- 2.Rd6#
- 2.Qc5#
- 2.Qd6#
- 1...Sec4
- 2.Rd4#
- 2.Qc5#
- 1...Sg4
- 2.Rd6#
- 2.Qc5#
- 2.Qd6#
- 1...f4
- 2.Rd6#
- 2.Qc5#
- 2.Qd6#
- 1...Qxb4!
- threat
- 1.Qf4?
- threat
- 2.Qe5#
- 2.Qd6#
- 1...Re4
- 2.Qd6#
- 1...Sbd1
- 2.Qd6#
- 1...Sd3
- 2.Qd6#
- 1...Sbc4
- 2.Qf3#
- 1...Sed1
- 2.Qd6#
- 1...Sf1
- 2.Qd6#
- 1...Sc2
- 2.Qd6#
- 1...Sg2
- 2.Qd6#
- 1...Sec4
- 2.Qd4#
- 1...Sg4
- 2.Qd6#
- 1...Rxf4!
- threat
- 1.Qg6?
- threat
- 2.Qf7#
- 2.Qd6#
- 2.Qe6#
- 1...Re4
- 2.Qd6#
- 1...Bg8
- 2.Qd6#
- 1...Sbc4
- 2.Qf7#
- 2.Qe6#
- 1...Sed1
- 2.Qd6#
- 1...Sf1
- 2.Qd6#
- 1...Sc2
- 2.Qd6#
- 1...Sg2
- 2.Qd6#
- 1...Sec4
- 2.Rd4#
- 1...Sg4
- 2.Qd6#
- 1...Bxg6!
- threat
- 1.Be4+?
- Keys
- 1.Qg5!
- threat
- 2.Qd8#
- 1...Sbc4
- 2.Be4#
- 1...Sec4
- 2.Rd4#
- threat
- 1.Qg5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(c);S_CUTR(f)::QAB(B)
- S(d);S_CUTR(f)::QAR1(B)
- Tries
- Try
- B(A);CHECK
- Refutation
- R(f);XB(A)
- Try
- R(C);
- Threat
- R1(C)
- Vars
- S(c);S_CUTR(f)::QAB(B)
- S(d);S_CUTR(f)::QAR1(B)
- Refutation
- B(k);
- Try
- Q(B);XR(f)
- Threat
- DUALS(4)
- Vars
- P(g);XQ(B)::R1(C)
- S(c);::QAR1(B)
- Refutation
- Q(e);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(2)
- Vars
- R(f);::QAR1(B)
- S(c);::QAR1(B)
- S(c);S_CUTR(f)::QAB(B)
- S(d);::QAR1(B)
- S(d);S_CUTR(f)::QAR1(B)
- Refutation
- R(f);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- R(f);::QAR1(B)
- B(k);::QAR1(B)
- S(d);::QAR1(B)
- S(d);S_CUTR(f)::R1(C)
- Refutation
- B(k);XQ(B)
- Try
- Actual
- Q(B);P_PINP(j)
- Threat
- QAR(B)
- Vars
- S(c);S_CUTR(f)::B(A)
- S(d);S_CUTR(f)::R1(C)
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).