MESON Chess Problem Database
Problem Display
PID: 180124 (4bn2/6p1/4p1rb/p3p3/pR5Q/k5p1/2K5/1B6 w - - 0 1)
Rduch, Frantisek
Prize, L'Alfiere di Re, 1924
#2
4 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Bf7
- 2.Rxa4#
- 1...Sd7
- 2.Rxa4#
- 1...Bf7
- Tries
- 1.Rb2?
- threat
- 2.Ra2#
- 2.Qe7#
- 1...Rg5
- 2.Ra2#
- 1...Rf6
- 2.Ra2#
- 1...Bd2
- 2.Ra2#
- 1...Be3
- 2.Ra2#
- 1...Bf4
- 2.Qe7#
- 1...Bg5
- 2.Ra2#
- 1...Sd7
- 2.Ra2#
- 1...e4
- 2.Qe7#
- 1...Rg4!
- threat
- 1.Rc4?
- threat
- 2.Rc3#
- 2.Qe7#
- 1...Rg4
- 2.Qe7#
- 1...Rg5
- 2.Rc3#
- 1...Rf6
- 2.Rc3#
- 1...Be3
- 2.Rc3#
- 1...Bf4
- 2.Qe7#
- 1...Bg5
- 2.Rc3#
- 1...Sd7
- 2.Rc3#
- 2.Rxa4#
- 1...e4
- 2.Qe7#
- 1...Bd2!
- threat
- 1.Rd4?
- threat
- 2.Rd3#
- 2.Qe7#
- 1...exd4
- 2.Qe7#
- 1...Rg4
- 2.Qe7#
- 1...Rg5
- 2.Rd3#
- 1...Rf6
- 2.Rd3#
- 1...Bf4
- 2.Qe7#
- 1...Bg5
- 2.Rd3#
- 1...Bb5
- 2.Qe7#
- 1...Sd7
- 2.Rd3#
- 2.Rxa4#
- 1...e4
- 2.Qe7#
- 1...Bd2!
- threat
- 1.Qe7?
- threat
- 2.Rb2#
- 2.Rb3#
- 2.Rc4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rb5#
- 2.Rb6#
- 2.Rb7#
- 2.Rb8#
- 1...Bd2
- 2.Rb3#
- 1...Rg4
- 2.Rb3#
- 2.Rc4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rxg4#
- 1...Be3
- 2.Rb3#
- 2.Rd4#
- 1...Bf4
- 2.Rb2#
- 2.Rb3#
- 2.Rc4#
- 2.Rd4#
- 2.Re4#
- 2.Rxf4#
- 2.Rb5#
- 2.Rb6#
- 2.Rb7#
- 2.Rb8#
- 1...Bg5
- 2.Rb3#
- 1...Bb5
- 2.Rb2#
- 2.Rb3#
- 2.Rc4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rg4#
- 2.Rh4#
- 2.Rxb5#
- 1...Sd7
- 2.Rb3#
- 1...e4
- 2.Rb2#
- 2.Rb3#
- 2.Rc4#
- 2.Rd4#
- 2.Rxe4#
- 2.Rb5#
- 2.Rb6#
- 2.Rb7#
- 2.Rb8#
- 1...axb4!
- threat
- 1.Qc4?
- threat
- 2.Qc3#
- 1...axb4
- 2.Qa2#
- 1...Bd2!
- threat
- 1.Qd4?
- threat
- 2.Qb2#
- 2.Qc3#
- 1...axb4
- 2.Qa1#
- 2.Qb2#
- 1...Bd2
- 2.Qb2#
- 1...Bc1
- 2.Qc3#
- 1...exd4!
- threat
- 1.Rb2?
- Keys
- 1.Rf4!
- threat
- 2.Qe7#
- 1...Rg5
- 2.Rf3#
- 1...Rf6
- 2.Qxg3#
- 1...Bg5
- 2.Qxg3#
- 1...Sd7
- 2.Rxa4#
- threat
- 1.Rf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- B(j);N_GUARD::R1(C),XP(c)
- S(k);S_CUTB(j)::R1(C),XP(c)
- Tries
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- R(g);::R1(C)
- B(h);::R1(C)
- B(h);::QAB(D)
- S(k);::R1(C)
- P(e);::QAB(D)
- Refutation
- R(g);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- R(g);::QAB(D)
- R(g);::R(C)
- B(h);::R(C)
- B(h);::QAB(D)
- P(e);::QAB(D)
- Refutation
- B(h);
- Try
- R(C);
- Threat
- DUALS(2)
- Vars
- P(e);XR(C)::QAB(D)
- R(g);::QAB(D)
- R(g);::R(C)
- B(h);::QAB(D)
- B(h);::R(C)
- B(j);::QAB(D)
- P(e);::QAB(D)
- Refutation
- B(h);
- Try
- Q(D);
- Threat
- DUALS(12)
- Vars
- B(h);::QAB(D)+R(C),DCHECK
- S(k);::QAB(D)+R(C),DCHECK
- Refutation
- P(d);P_SPINP(d),XR(C)
- Try
- Q(D);
- Threat
- QAR2(D)
- Vars
- P(d);SBLOCK,XR(C)::QAR1(D)
- Refutation
- B(h);
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- B(h);::QAB1(D)
- B(h);::QAR2(D)
- Refutation
- P(e);XQ(D)
- Try
- Actual
- R(C);
- Threat
- QAB(D)
- Vars
- R(g);S_CUTB(h)::R(C)
- R(g);N_GUARD::QAR(D),XP(b)
- B(h);S_CUTR(g)::QAR(D),XP(b)
- S(k);S_CUTB(j)::R1(C),XP(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).