MESON Chess Problem Database
Problem Display
PID: 148387 (bQ1Nnn2/p5r1/2P1pp1b/7R/2pk1p1N/3p1P2/1P1P3B/K7 w - - 0 1)
Anonymous
Surrey County Chess Association, 1901
#2
10 + 12
| 15 | British Chess Magazine | 1901 |
SOLUTION
- SOUND
- Sets
- 1...Rg1+
- 2.Bxg1#
- 1...Rg2
- 2.Qxa7#
- 1...Rg3
- 2.Qxa7#
- 1...Rg4
- 2.Qxa7#
- 1...Rg6
- 2.Qxa7#
- 1...Rb7
- 2.Bg1#
- 1...Rc7
- 2.Bg1#
- 1...Rd7
- 2.Bg1#
- 1...Re7
- 2.Bg1#
- 1...Rf7
- 2.Bg1#
- 1...Rh7
- 2.Bg1#
- 1...Rg8
- 2.Qxa7#
- 1...Bxc6
- 2.Sxc6#
- 1...Bb7
- 2.Qxa7#
- 1...Sd6
- 2.Qxd6#
- 1...Sc7
- 2.Qxa7#
- 1...Sg6
- 2.Sxe6#
- 2.Bg1#
- 1...Sd7
- 2.Sxe6#
- 1...Sh7
- 2.Sxe6#
- 1...c3
- 2.Qb4#
- 1...a5
- 2.Qb6#
- 1...a6
- 2.Qb6#
- 1...Rg1+
- Tries
- 1.Rb5?
- 1...Rg1+
- 2.Bxg1#
- 1...Bxc6
- 2.Sxc6#
- 1...Rg2
- 2.Qxa7#
- 1...Rg3
- 2.Qxa7#
- 1...Rg4
- 2.Qxa7#
- 1...Rg5
- 2.Qxf4#
- 1...Rg6
- 2.Qxa7#
- 1...Rb7
- 2.Bg1#
- 1...Rc7
- 2.Bg1#
- 1...Rd7
- 2.Bg1#
- 1...Re7
- 2.Bg1#
- 1...Rf7
- 2.Bg1#
- 1...Rh7
- 2.Bg1#
- 1...Rg8
- 2.Qxa7#
- 1...Bg5
- 2.Bg1#
- 1...Bb7
- 2.Qxa7#
- 1...Sd6
- 2.Qxd6#
- 1...Sc7
- 2.Qxa7#
- 1...Sg6
- 2.Sxe6#
- 2.Bg1#
- 1...Sd7
- 2.Sxe6#
- 1...Sh7
- 2.Sxe6#
- 1...e5
- 2.Sf5#
- 1...f5
- 2.Qe5#
- 1...a5
- 2.Qb6#
- 1...a6
- 2.Qb6#
- 1...c3!
- 1...Rg1+
- 1.Rb5?
- Keys
- 1.Ra5!
- 1...Rg1+
- 2.Bxg1#
- 1...Bxc6
- 2.Sxc6#
- 1...c3
- 2.Qb4#
- 1...Rg2
- 2.Qxa7#
- 1...Rg3
- 2.Qxa7#
- 1...Rg4
- 2.Qxa7#
- 1...Rg5
- 2.Qxf4#
- 1...Rg6
- 2.Qxa7#
- 1...Rb7
- 2.Bg1#
- 1...Rc7
- 2.Bg1#
- 1...Rd7
- 2.Bg1#
- 1...Re7
- 2.Bg1#
- 1...Rf7
- 2.Bg1#
- 1...Rh7
- 2.Bg1#
- 1...Rg8
- 2.Qxa7#
- 1...Bg5
- 2.Bg1#
- 1...Bb7
- 2.Qxa7#
- 1...Sd6
- 2.Qxd6#
- 1...Sc7
- 2.Qxa7#
- 1...Sg6
- 2.Sxe6#
- 2.Bg1#
- 1...Sd7
- 2.Sxe6#
- 1...Sh7
- 2.Sxe6#
- 1...e5
- 2.Sf5#
- 1...f5
- 2.Qe5#
- 1...a6
- 2.Qb6#
- 1...Rg1+
- 1.Ra5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- R(i);CHECK,N_GUARD::B(D),XR(i)
- R(i);N_GUARD::QAB(I),XP(h)
- R(i);N_GUARD::B(D)
- B(j);XP(H)::S(J),XB(j)
- B(j);S_CUTR(i)::QAB(I),XP(h)
- S(k);N_GUARD::QAR2(I),XS(k)
- S(k);S_CUTR(i)::QAB(I),XP(h)
- S(l);N_GUARD::S(J),XP(e)
- P(b);OGATEB::QAR2(I)
- P(h);N_GUARD::QAB(I)
- Tries
- Try
- R(G);
- Vars
- R(i);CHECK,N_GUARD::B(D),XR(i)
- B(j);XP(H)::S(J),XB(j)
- R(i);N_GUARD::QAB(I),XP(h)
- R(i);S_CUTB(g)::QAR2(I),XP(d)
- R(i);N_GUARD::B(D)
- B(g);S_CUTR(i)::B(D)
- B(j);S_CUTR(i)::QAB(I),XP(h)
- S(k);N_GUARD::QAR2(I),XS(k)
- S(k);S_CUTR(i)::QAB(I),XP(h)
- S(l);N_GUARD::S(J),XP(e)
- P(e);N_GUARD::S(F)
- P(f);N_GUARD::QAB1(I)
- P(h);N_GUARD::QAB(I)
- Refutation
- P(b);
- Try
- Actual
- R(G);
- Vars
- R(i);CHECK,N_GUARD::B(D),XR(i)
- B(j);XP(H)::S(J),XB(j)
- P(b);OGATEB::QAR2(I)
- R(i);N_GUARD::QAB(I),XP(h)
- R(i);S_CUTB(g)::QAR2(I),XP(d)
- R(i);N_GUARD::B(D)
- B(g);S_CUTR(i)::B(D)
- B(j);S_CUTR(i)::QAB(I),XP(h)
- S(k);N_GUARD::QAR2(I),XS(k)
- S(k);S_CUTR(i)::QAB(I),XP(h)
- S(l);N_GUARD::S(J),XP(e)
- P(e);N_GUARD::S(F)
- P(f);N_GUARD::QAB1(I)
- P(h);N_GUARD::QAB(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).