MESON Chess Problem Database
Problem Display
PID: 57202 (1B2Qb2/Kp6/4P3/1Bk2N2/p1p2N2/2P2p2/2p2q2/1r6 w - - 0 1)
Corrias, Antonio G
6th HM., Brisbane Courier, 1918
#2
8 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxb5
- 2.Qc8#
- 1...Bd6
- 2.Bxd6#
- 1...Bh6
- 2.Bd6#
- 1...Bg7
- 2.Bd6#
- 1...b6
- 2.Qc6#
- 1...Rxb5
- Tries
- 1.Sd6?
- threat
- 2.Se4#
- 2.Sxb7#
- 2.Qh5#
- 2.Qc8#
- 1...Rxb5
- 2.Se4#
- 2.Qxb5#
- 2.Qc8#
- 1...Qe1
- 2.Sxb7#
- 2.Qc8#
- 1...Qg1
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...Qe3
- 2.Sxb7#
- 2.Qc8#
- 1...Qg3
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...Qd4
- 2.Sxb7#
- 2.Qc8#
- 1...Qh4
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...Qd2
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...Qe2
- 2.Sxb7#
- 2.Qc8#
- 1...Qg2
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...Qh2
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...Rd1
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...Re1
- 2.Sxb7#
- 2.Qc8#
- 1...Rg1
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...Rh1
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...Bh6
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...Be7
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...Bg7
- 2.Se4#
- 2.Sxb7#
- 2.Qc8#
- 1...b6
- 2.Se4#
- 2.Sb7#
- 2.Qh5#
- 2.Qc6#
- 2.Qc8#
- 1...Bxd6!
- threat
- 1.Bxa4?
- threat
- 2.Qc8#
- 2.Qxf8#
- 1...Qd4
- 2.Qc8#
- 1...Qh4
- 2.Qc8#
- 1...Qd2
- 2.Qc8#
- 1...Rd1
- 2.Qb5#
- 2.Qc8#
- 1...Rb5
- 2.Qxb5#
- 2.Qc8#
- 1...Bd6
- 2.Bxd6#
- 1...Bh6
- 2.Bd6#
- 2.Qe7#
- 2.Qc8#
- 1...Be7
- 2.Qxe7#
- 2.Qc8#
- 1...Bg7
- 2.Bd6#
- 2.Qe7#
- 2.Qc8#
- 1...b5
- 2.Qc8#
- 1...Rb6!
- threat
- 1.Bd7?
- threat
- 2.Qc8#
- 2.Qxf8#
- 1...Qd4
- 2.Qc8#
- 1...Qh4
- 2.Qc8#
- 1...Qd2
- 2.Qc8#
- 1...Rd1
- 2.Qc8#
- 1...Bd6
- 2.Bxd6#
- 1...Bh6
- 2.Bd6#
- 2.Qe7#
- 2.Qc8#
- 1...Be7
- 2.Qxe7#
- 2.Qc8#
- 1...Bg7
- 2.Bd6#
- 2.Qe7#
- 2.Qc8#
- 1...Rb6!
- threat
- 1.Bc7?
- threat
- 2.Bb6#
- 1...b6
- 2.Bxb6#
- 2.Qc6#
- 1...Rxb5!
- threat
- 1.Qd8?
- threat
- 2.Qb6#
- 2.Qd5#
- 1...Rxb5
- 2.Qc7#
- 2.Qd5#
- 2.Qc8#
- 1...Qd4
- 2.Qb6#
- 1...Qd2
- 2.Qb6#
- 1...Rd1
- 2.Qb6#
- 1...Bd6
- 2.Qb6#
- 1...b6
- 2.Qxb6#
- 2.Qd5#
- 1...Kxb5+!
- threat
- 1.Sd6?
- Keys
- 1.Qh5!
- threat
- 2.Se3#
- 2.Sg3#
- 2.Sd4#
- 2.Sh4#
- 2.Sd6#
- 2.Sh6#
- 2.Se7#
- 2.Sg7#
- 1...Kxb5+
- 2.Sd4#
- 1...Rxb5
- 2.Sd4#
- 2.Se7#
- 1...Qe1
- 2.Se3#
- 1...Qg1
- 2.Sg3#
- 1...Qe3
- 2.Sxe3#
- 1...Qg3
- 2.Sxg3#
- 1...Qd4
- 2.Sxd4#
- 1...Qh4
- 2.Sxh4#
- 1...Qd2
- 2.Sd4#
- 1...Qe2
- 2.Se3#
- 1...Qg2
- 2.Sg3#
- 1...Qh2
- 2.Sh4#
- 1...Rd1
- 2.Sd4#
- 1...Re1
- 2.Se3#
- 1...Rg1
- 2.Sg3#
- 1...Rh1
- 2.Sh4#
- 1...Bd6
- 2.Sxd6#
- 1...Bh6
- 2.Sxh6#
- 1...Be7
- 2.Sxe7#
- 1...Bg7
- 2.Sxg7#
- threat
- 1.Qh5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 16
- REMOVED MATES = 2
- Sets
- R(a);SBLOCK,XB(C)::QAR(H)
- B(i);N_GUARD::B(G),XB(i)
- B(i);N_GUARD::B(G)
- P(h);N_GUARD::QAR1(H)
- Tries
- Try
- S(D);
- Threat
- DUALS(4)
- Refutation
- B(i);XS(D)
- Try
- B(C);XP(e)
- Threat
- DUALS(2)
- Vars
- Q(c);::QAR(H)
- B(i);N_GUARD::B(G),XB(i)
- P(h);::QAR(H)
- Refutation
- R(a);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- Q(c);::QAR(H)
- R(a);::QAR(H)
- B(i);N_GUARD::B(G),XB(i)
- Refutation
- R(a);
- Try
- B(G);
- Threat
- B(G)
- Refutation
- R(a);XB(C)
- Try
- Q(H);
- Threat
- DUALS(2)
- Vars
- Q(c);::QAB1(H)
- R(a);::QAB1(H)
- B(i);::QAB1(H)
- Refutation
- K(g);CHECK,P-FLIGHT,XB(C)
- Try
- Actual
- Q(H);
- Threat
- DUALS(8)
- Vars
- K(g);CHECK,P-FLIGHT,XB(C)::QAR(H)+S(D),DCHECK
- Q(c);::QAR(H)+S(D)
- Q(c);::QAR(H)+S(D),XQ(c)
- R(a);::QAR(H)+S(D)
- B(i);::QAR(H)+S(D),XB(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).