MESON Chess Problem Database
Problem Display
PID: 75099 (1QR5/p1P3R1/P7/B2pb3/P1k1Np2/nN1p1B1K/n6P/3r4 w - - 0 1)
Valle, Giovanni Batista
Nuova Illustrazione Universale, 1875
(First published on Sun Jul 18 1875)
#2
12 + 9
| 6169 | Dal classico agli albori del moderno compositori scacchisti | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sed2#
- 1...Rb1
- 2.Sed2#
- 1...Rc1
- 2.Sed2#
- 1...Re1
- 2.Sed2#
- 1...Rf1
- 2.Sed2#
- 1...Rg1
- 2.Sed2#
- 1...Rh1
- 2.Sed2#
- 1...Rd2
- 2.Sexd2#
- 1...Ba1
- 2.Sd6#
- 1...Bb2
- 2.Sd6#
- 1...Bc3
- 2.Sd6#
- 1...Bd4
- 2.Sd6#
- 1...Bd6
- 2.Sxd6#
- 1...Bf6
- 2.Sd6#
- 1...Bxc7
- 2.Sd6#
- 2.Rgxc7#
- 2.Rcxc7#
- 1...Bxg7
- 2.Sd6#
- 1...Sc1
- 2.Qb4#
- 1...Sc3
- 2.Qb4#
- 1...Sb4
- 2.Qxb4#
- 1...Sb1
- 2.Qb5#
- 1...Sc2
- 2.Qb5#
- 1...Sb5
- 2.Qxb5#
- 1...d2
- 2.Be2#
- 1...Ra1
- Tries
- 1.Sbd2+?
- 1...Kd4
- 2.Qxa7#
- 1...Rxd2!
- 1...Kd4
- 1.Sc3?
- threat
- 2.Bxd5#
- 1...Sxc3
- 2.Qb4#
- 1...Sb4
- 2.Qxb4#
- 1...d2
- 2.Be2#
- 1...d4
- 2.Bd5#
- 1...Bxc3!
- threat
- 1.Sf6?
- threat
- 2.Bxd5#
- 1...Sb4
- 2.Qxb4#
- 1...d2
- 2.Be2#
- 1...Sc3
- 2.Qb4#
- 1...d4
- 2.Bd5#
- 1...Bxf6!
- threat
- 1.Bg4?
- 1...Bxc7
- 2.Sd6#
- 2.Rgxc7#
- 2.Rcxc7#
- 1...Bxg7
- 2.Sd6#
- 1...dxe4
- 2.Be6#
- 1...Sb4
- 2.Qxb4#
- 1...Sb5
- 2.Qxb5#
- 1...d2
- 2.Be2#
- 1...d4
- 2.Be6#
- 1...Ra1
- 2.Sed2#
- 1...Rb1
- 2.Sed2#
- 1...Rc1
- 2.Sed2#
- 1...Re1
- 2.Sed2#
- 1...Rf1
- 2.Sed2#
- 1...Rg1
- 2.Sed2#
- 1...Rh1
- 2.Sed2#
- 1...Rd2
- 2.Sexd2#
- 1...Ba1
- 2.Sd6#
- 1...Bb2
- 2.Sd6#
- 1...Bc3
- 2.Sd6#
- 1...Bd4
- 2.Sd6#
- 1...Bd6
- 2.Sxd6#
- 1...Bf6
- 2.Sd6#
- 1...Sc1
- 2.Qb4#
- 1...Sc3
- 2.Qb4#
- 1...Sb1
- 2.Qb5#
- 1...Sc2
- 2.Qb5#
- 1...f3!
- 1...Bxc7
- 1.Bh5?
- 1...Bxc7
- 2.Sd6#
- 2.Rgxc7#
- 2.Rcxc7#
- 1...Bxg7
- 2.Sd6#
- 1...dxe4
- 2.Bf7#
- 1...Sb4
- 2.Qxb4#
- 1...Sb5
- 2.Qxb5#
- 1...d2
- 2.Be2#
- 1...d4
- 2.Bf7#
- 1...Ra1
- 2.Sed2#
- 1...Rb1
- 2.Sed2#
- 1...Rc1
- 2.Sed2#
- 1...Re1
- 2.Sed2#
- 1...Rf1
- 2.Sed2#
- 1...Rg1
- 2.Sed2#
- 1...Rh1
- 2.Sed2#
- 1...Rd2
- 2.Sexd2#
- 1...Ba1
- 2.Sd6#
- 1...Bb2
- 2.Sd6#
- 1...Bc3
- 2.Sd6#
- 1...Bd4
- 2.Sd6#
- 1...Bd6
- 2.Sxd6#
- 1...Bf6
- 2.Sd6#
- 1...Sc1
- 2.Qb4#
- 1...Sc3
- 2.Qb4#
- 1...Sb1
- 2.Qb5#
- 1...Sc2
- 2.Qb5#
- 1...f3!
- 1...Bxc7
- 1.Qb6?
- 1...Bxc7
- 2.Sd6#
- 2.Rgxc7#
- 2.Rcxc7#
- 1...Bxg7
- 2.Sd6#
- 1...dxe4
- 2.Qe6#
- 1...Sb4
- 2.Qxb4#
- 1...Sb5
- 2.Qxb5#
- 1...d2
- 2.Be2#
- 1...d4
- 2.Qe6#
- 1...Ra1
- 2.Sbd2#
- 2.Sed2#
- 1...Rb1
- 2.Sbd2#
- 2.Sed2#
- 1...Rc1
- 2.Sbd2#
- 2.Sed2#
- 1...Re1
- 2.Sbd2#
- 2.Sed2#
- 1...Rf1
- 2.Sbd2#
- 2.Sed2#
- 1...Rg1
- 2.Sbd2#
- 2.Sed2#
- 1...Rh1
- 2.Sbd2#
- 2.Sed2#
- 1...Rd2
- 2.Sbxd2#
- 2.Sexd2#
- 1...Ba1
- 2.Sd6#
- 1...Bb2
- 2.Sd6#
- 1...Bc3
- 2.Sd6#
- 1...Bd4
- 2.Sd6#
- 1...Bd6
- 2.Sxd6#
- 1...Bf6
- 2.Sd6#
- 1...Sc1
- 2.Qb4#
- 1...Sc3
- 2.Qb4#
- 1...Sb1
- 2.Qb5#
- 1...Sc2
- 2.Qb5#
- 1...axb6!
- 1...Bxc7
- 1.Sbd2+?
- Keys
- 1.Rh8!
- 1...Bxc7
- 2.Rxc7#
- 1...Bxg7
- 2.Sd6#
- 2.c8Q#
- 2.c8R#
- 1...dxe4
- 2.Qg8#
- 1...Sb4
- 2.Qxb4#
- 1...Sb5
- 2.Qxb5#
- 1...d2
- 2.Be2#
- 1...d4
- 2.Qg8#
- 1...Ra1
- 2.Sed2#
- 1...Rb1
- 2.Sed2#
- 1...Rc1
- 2.Sed2#
- 1...Re1
- 2.Sed2#
- 1...Rf1
- 2.Sed2#
- 1...Rg1
- 2.Sed2#
- 1...Rh1
- 2.Sed2#
- 1...Rd2
- 2.Sexd2#
- 1...Ba1
- 2.Sd6#
- 2.c8Q#
- 2.c8R#
- 1...Bb2
- 2.Sd6#
- 2.c8Q#
- 2.c8R#
- 1...Bc3
- 2.Sd6#
- 2.c8Q#
- 2.c8R#
- 1...Bd4
- 2.Sd6#
- 1...Bd6
- 2.Sxd6#
- 1...Bf6
- 2.Sd6#
- 2.c8Q#
- 2.c8R#
- 1...Sc1
- 2.Qb4#
- 1...Sc3
- 2.Qb4#
- 1...Sb1
- 2.Qb5#
- 1...Sc2
- 2.Qb5#
- 1...Bxc7
- 1.Rh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- R(a);N_GUARD::S(F)
- R(a);N_GUARD,P_PINP(A)::S(F)
- R(a);N_GUARD::S(F),XR(a)
- B(h);N_GUARD::S(F)
- B(h);N_GUARD::S(F),XB(h)
- B(h);N_GUARD,XR(J)::S(F)
- S(b);N_GUARD::QAR1(K)
- S(b);N_GUARD::QAR1(K),XS(b)
- S(c);N_GUARD::QAB1(K)
- S(c);N_GUARD::QAB1(K),XS(c)
- P(d);OGATEB::B(C)
- Tries
- Try
- S(B);CHECK
- Vars
- K(e);P-FLIGHT::QAB(K),XP(i)
- Refutation
- R(a);XS(B)
- Try
- S(F);
- Threat
- B(C),XP(g)
- Vars
- S(b);N_GUARD,XS(F)::QAR1(K)
- S(b);N_GUARD::QAR1(K),XS(b)
- P(d);OGATEB::B(C)
- P(g);::B(C)
- Refutation
- B(h);XS(F)
- Try
- S(F);
- Threat
- B(C),XP(g)
- Vars
- S(b);N_GUARD::QAR1(K),XS(b)
- P(d);OGATEB::B(C)
- S(b);N_GUARD::QAR1(K)
- P(g);::B(C)
- Refutation
- B(h);XS(F)
- Try
- B(C);
- Vars
- B(h);N_GUARD,XR(J)::S(F)
- P(g);OGATEB,XS(F)::B(C)
- S(b);N_GUARD::QAR1(K),XS(b)
- S(c);N_GUARD::QAB1(K),XS(c)
- P(d);OGATEB::B(C)
- P(g);OGATEB::B(C)
- R(a);N_GUARD::S(F)
- R(a);N_GUARD,P_PINP(A)::S(F)
- R(a);N_GUARD::S(F),XR(a)
- B(h);N_GUARD::S(F)
- B(h);N_GUARD::S(F),XB(h)
- S(b);N_GUARD::QAR1(K)
- S(c);N_GUARD::QAB1(K)
- Refutation
- P(f);
- Try
- B(C);
- Vars
- B(h);N_GUARD,XR(J)::S(F)
- P(g);OGATEB,XS(F)::B(C)
- S(b);N_GUARD::QAR1(K),XS(b)
- S(c);N_GUARD::QAB1(K),XS(c)
- P(d);OGATEB::B(C)
- P(g);OGATEB::B(C)
- R(a);N_GUARD::S(F)
- R(a);N_GUARD,P_PINP(A)::S(F)
- R(a);N_GUARD::S(F),XR(a)
- B(h);N_GUARD::S(F)
- B(h);N_GUARD::S(F),XB(h)
- S(b);N_GUARD::QAR1(K)
- S(c);N_GUARD::QAB1(K)
- Refutation
- P(f);
- Try
- Q(K);
- Vars
- B(h);N_GUARD,XR(J)::S(F)
- P(g);OGATEB,XS(F)::QAB(K)
- S(b);N_GUARD::QAR1(K),XS(b)
- S(c);N_GUARD::QAB1(K),XS(c)
- P(d);OGATEB::B(C)
- P(g);OGATEB::QAB(K)
- B(h);N_GUARD::S(F)
- B(h);N_GUARD::S(F),XB(h)
- S(b);N_GUARD::QAR1(K)
- S(c);N_GUARD::QAB1(K)
- Refutation
- P(i);XQ(K)
- Try
- Actual
- R(L);
- Vars
- B(h);OGATE,XP(I)::R(J),XB(h)
- P(g);OGATEB,XS(F)::QAB(K)
- S(b);N_GUARD::QAR1(K),XS(b)
- S(c);N_GUARD::QAB1(K),XS(c)
- P(d);OGATEB::B(C)
- P(g);OGATEB::QAB(K)
- R(a);N_GUARD::S(F)
- R(a);N_GUARD,P_PINP(A)::S(F)
- R(a);N_GUARD::S(F),XR(a)
- B(h);N_GUARD::S(F)
- B(h);N_GUARD::S(F),XB(h)
- S(b);N_GUARD::QAR1(K)
- S(c);N_GUARD::QAB1(K)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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