MESON Chess Problem Database
Problem Display
PID: 242322 (q4bB1/r1p5/p3Rp2/1pBk4/8/1K2P1n1/8/2R5 w - - 0 1)
Morra, Juan Carlos
Tijdschrift vd KNSB, 1955
#2
6 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sf1
- 2.e4#
- 1...Sh1
- 2.e4#
- 1...Se2
- 2.e4#
- 1...Sf5
- 2.e4#
- 1...Sh5
- 2.e4#
- 1...c6
- 2.Re7#
- 1...Sf1
- Tries
- 1.Bb4?
- threat
- 2.Rd1#
- 2.Re7#
- 2.Re8#
- 1...Qc6
- 2.Rd1#
- 1...Qc8
- 2.Rd1#
- 1...Qe8
- 2.Rd1#
- 2.Rxe8#
- 1...Bc5
- 2.Rxc5#
- 1...Bd6
- 2.Re8#
- 1...Bh6
- 2.Rd1#
- 2.Rc5#
- 2.Re8#
- 1...Be7
- 2.Rd1#
- 1...Bg7
- 2.Rd1#
- 2.Rc5#
- 2.Re8#
- 1...Sf1
- 2.Re7#
- 2.Re8#
- 1...Se2
- 2.Re7#
- 2.Re8#
- 1...Se4
- 2.Re7#
- 2.Re8#
- 1...Sf5
- 2.Re7#
- 2.Re8#
- 1...c5
- 2.Rd1#
- 1...c6
- 2.Rd1#
- 2.Re7#
- 1...Bxb4!
- threat
- 1.Bxf8?
- threat
- 2.Rd1#
- 2.Rc5#
- 2.Re8#
- 1...Qc6
- 2.Rd1#
- 1...Qc8
- 2.Rd1#
- 2.Rc5#
- 1...Qe8
- 2.Rd1#
- 2.Rc5#
- 2.Rxe8#
- 1...Sf1
- 2.Rc5#
- 2.Re8#
- 1...Se2
- 2.Rc5#
- 2.Re8#
- 1...Se4
- 2.Re8#
- 1...Sf5
- 2.Rc5#
- 2.Re8#
- 1...c5
- 2.Rd1#
- 2.Rxc5#
- 1...c6
- 2.Rd1#
- 2.Rc5#
- 1...Qxf8!
- threat
- 1.Bb4?
- Keys
- 1.Bd6!
- threat
- 2.Rc5#
- 1...Bxd6
- 2.Re8#
- 1...cxd6
- 2.Re7#
- 1...c5
- 2.Rxc5#
- 1...Qc6
- 2.Rd1#
- 1...Se4
- 2.Rxf6#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 6
- Sets
- S(a);N_GUARD::P(C)
- P(g);SBLOCK::B(F)+R(E)
- Tries
- Try
- B(D);
- Threat
- DUALS(3)
- Vars
- Q(h);::R(A)
- B(i);N_GUARD::R1(A),XB(i)
- B(i);::B(F)+R(E)
- B(i);::R(A)
- P(g);::R(A)
- Refutation
- B(i);XB(D)
- Try
- B(D);XB(i)
- Threat
- DUALS(3)
- Vars
- Q(h);::R(A)
- S(a);::B(F)+R(E)
- Refutation
- Q(h);XB(D)
- Try
- Actual
- B(D);
- Threat
- R1(A)
- Vars
- B(i);SBLOCK,XB(D)::B(F)+R(E)
- P(g);SBLOCK,XB(D)::B(F)+R(E)
- P(g);::R1(A),XP(g)
- Q(h);SBLOCK::R(A)
- S(a);SBLOCK::B(F)+R(E),XP(e)
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).