MESON Chess Problem Database
Problem Display
PID: 71987 (4Nr2/1Qp4b/1rnbp2n/p2kP3/2R1p1N1/3P1p1K/B7/8 w - - 0 1)
Vieira, Ricardo de Mattos
Zarur, Almiro Elias
22nd Place, 08. WCCT, 2006-2008
#2
8 + 12
| 14561 | 08. WCCT Award | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.Qxc6#
- 1...Rb2
- 2.Qxc6#
- 1...Rb3
- 2.Qxc6#
- 1...Rb4
- 2.Qxc6#
- 1...Rb5
- 2.Qxc6#
- 1...Rf5
- 2.dxe4#
- 1...Rf6
- 2.Sexf6#
- 1...Rg8
- 2.Sef6#
- 1...Rh8
- 2.Sef6#
- 1...Ba3
- 2.Sxc7#
- 1...Bb4
- 2.Sxc7#
- 1...Bc5
- 2.Sxc7#
- 2.Rb4#
- 1...Bxe5
- 2.Se3#
- 1...Be7
- 2.Sxc7#
- 1...Bg8
- 2.dxe4#
- 1...Sf5
- 2.dxe4#
- 1...Sf7
- 2.Sef6#
- 1...Rb1
- Tries
- 1.Qxb6?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Rxe4#
- 2.Rxc6#
- 2.Qxc6#
- 1...Sxe5
- 2.Se3#
- 2.Rd4#
- 2.Qd4#
- 1...Sxg4
- 2.Rxe4#
- 1...exd3
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Rf4#
- 2.Qxc6#
- 1...Bb4
- 2.Sxc7#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rxb4#
- 2.Rd4#
- 2.Rxe4#
- 2.Rxc6#
- 2.Qxc6#
- 1...Bc5
- 2.Sxc7#
- 2.Ra4#
- 2.Rb4#
- 2.Rxe4#
- 2.Qxc5#
- 1...Sb4
- 2.Rxb4#
- 2.Rd4#
- 2.Qd4#
- 1...Sd4
- 2.Rxd4#
- 2.Rc5#
- 2.Qxd4#
- 1...Sa7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Rxe4#
- 2.Rc6#
- 2.Rxc7#
- 2.Qd4#
- 1...Se7
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Rxe4#
- 2.Rc6#
- 2.Rxc7#
- 2.Qd4#
- 1...Sb8
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Rxe4#
- 2.Rc6#
- 2.Rxc7#
- 2.Qd4#
- 1...Sd8
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Rxe4#
- 2.Rc6#
- 2.Rxc7#
- 2.Qd4#
- 1...e3
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Ra4#
- 2.Rb4#
- 2.Rd4#
- 2.Re4#
- 2.Rf4#
- 2.Rxc6#
- 2.Qxc6#
- 1...a4
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rxa4#
- 2.Rb4#
- 2.Rd4#
- 2.Rxe4#
- 2.Rxc6#
- 2.Qxc6#
- 1...cxb6!
- threat
- 1.d4?
- threat
- 2.Se3#
- 2.Rb4#
- 1...Sxg4
- 2.Rb4#
- 1...Rb3
- 2.Qxc6#
- 1...Rb1
- 2.Se3#
- 2.Qxc6#
- 1...Rb2
- 2.Se3#
- 2.Qxc6#
- 1...Rb4
- 2.Se3#
- 2.Rxb4#
- 2.Qxc6#
- 1...Bb4
- 2.Se3#
- 2.Sxc7#
- 2.Rxb4#
- 1...Bf5
- 2.Rb4#
- 1...Sf5
- 2.Rb4#
- 1...e3!
- threat
- 1.Qxb6?
- Keys
- 1.Qxc7!
- threat
- 2.Qxd6#
- 1...Bxe5
- 2.Se3#
- 1...Bxc7
- 2.Sxc7#
- 1...Sxe5
- 2.Se3#
- 1...Ba3
- 2.Se3#
- 1...Bb4
- 2.Se3#
- 1...Bc5
- 2.Rb4#
- 1...Be7
- 2.Se3#
- 1...Sb4
- 2.Rxb4#
- 1...Sd4
- 2.Rc5#
- 1...Sa7
- 2.Rb4#
- 1...Se7
- 2.Rb4#
- 1...Sb8
- 2.Rb4#
- 1...Sd8
- 2.Rb4#
- 1...Sf5
- 2.dxe4#
- 1...Sf7
- 2.Sef6#
- threat
- 1.Qxc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 9
- REMOVED MATES = 10
- Sets
- R(e);N_GUARD::QAB1(G),XS(f)
- R(l);S_CUTB(k)::P(B),XP(b)
- R(l);N_GUARD::S(H),XR(l)
- R(l);N_GUARD::S(H)
- B(g);N_GUARD::S(H),XP(j)
- B(g);SBLOCK,XP(F)::S(E)
- B(k);N_GUARD::P(B),XP(b)
- S(i);S_CUTB(k)::P(B),XP(b)
- S(i);S_CUTR(l)::S(H)
- Tries
- Try
- Q(G);N_PINS(f),XR(e)
- Threat
- DUALS(9)
- Vars
- S(i);XS(E)::B(A)+R(D),XP(b)
- Refutation
- P(j);XQ(G)
- Try
- P(B);
- Threat
- DUALS(2)
- Vars
- S(i);XS(E)::B(A)+R(D)
- R(e);N_GUARD::QAB1(G),XS(f)
- B(k);P_PINS(E)::B(A)+R(D)
- S(i);::B(A)+R(D)
- Refutation
- P(b);
- Try
- Actual
- Q(G);N_PINS(f),XP(j)
- Threat
- QAR1(G),XB(g)
- Vars
- B(g);XP(F)::S(E)
- B(g);XQ(G)::S(H),XB(g)
- S(f);SBLOCK,XP(F)::S(E)
- B(g);::S(E)
- B(g);SBLOCK::B(A)+R(D)
- S(f);::B(A)+R(D),XS(f)
- S(f);SBLOCK::B(A)+R(D),DCHECK
- S(f);::B(A)+R(D)
- S(i);S_CUTB(k)::P(B),XP(b)
- S(i);S_CUTR(l)::S(H)
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).