MESON Chess Problem Database
Problem Display
PID: 104881 (8/1b1N2pK/r1p1pp2/2Pk1n2/3Pp1rp/2b1P2N/2P1B2Q/8 w - - 0 1)
St Maurice, Ephrem
La Presse, 1943
#2
9 + 12
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rg1
- 2.Sf4#
- 1...Rg2
- 2.Sf4#
- 1...Rg3
- 2.Sf4#
- 1...Rf4
- 2.Sxf4#
- 1...Rg5
- 2.Sf4#
- 1...Rg6
- 2.Sf4#
- 1...Ra1
- 2.Sb6#
- 1...Ra2
- 2.Sb6#
- 1...Ra3
- 2.Sb6#
- 1...Ra4
- 2.Sb6#
- 1...Ra5
- 2.Sb6#
- 1...Rb6
- 2.Sxb6#
- 1...Ra7
- 2.Sb6#
- 1...Ra8
- 2.Sb6#
- 1...Ba1
- 2.c4#
- 1...Be1
- 2.c4#
- 1...Bb2
- 2.c4#
- 1...Bd2
- 2.c4#
- 1...Bb4
- 2.c4#
- 1...Bxd4
- 2.c4#
- 1...Ba5
- 2.c4#
- 1...Sxe3
- 2.Qd6#
- 1...Sxd4
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sh6
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...Rg1
- Tries
- 1.Bxa6?
- threat
- 2.Sb6#
- 1...Bxd4
- 2.c4#
- 1...Sxe3
- 2.Qd6#
- 1...Sxd4
- 2.Qd6#
- 1...Ba5
- 2.c4#
- 1...e5!
- threat
- 1.Bxa6?
- Keys
- 1.Qb8!
- 1...Bxd4
- 2.c4#
- 1...Sxe3
- 2.Qd6#
- 1...Sxd4
- 2.Qd6#
- 1...e5
- 2.Qg8#
- 1...Rg1
- 2.Sf4#
- 1...Rg2
- 2.Sf4#
- 1...Rg3
- 2.Sf4#
- 1...Rf4
- 2.Sxf4#
- 1...Rg5
- 2.Sf4#
- 1...Rg6
- 2.Sf4#
- 1...Ra1
- 2.Sb6#
- 1...Ra2
- 2.Sb6#
- 1...Ra3
- 2.Sb6#
- 1...Ra4
- 2.Sb6#
- 1...Ra5
- 2.Sb6#
- 1...Rb6
- 2.Sxb6#
- 1...Ra7
- 2.Sb6#
- 1...Ra8
- 2.Sb6#
- 1...Ba1
- 2.c4#
- 1...Be1
- 2.c4#
- 1...Bb2
- 2.c4#
- 1...Bd2
- 2.c4#
- 1...Bb4
- 2.c4#
- 1...Ba5
- 2.c4#
- 1...Ba8
- 2.Qb3#
- 1...Bc8
- 2.Qb3#
- 1...Sg3
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sh6
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...Bxd4
- 1.Qb8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(c);N_GUARD::S(E)
- R(c);N_GUARD::S(E),XR(c)
- R(g);N_GUARD::S(H)
- R(g);N_GUARD::S(H),XR(g)
- B(a);OGATE::P(A)
- B(a);OGATE,XP(F)::P(A)
- S(f);N_GUARD,XP(D)::QAR1(C)
- S(f);N_GUARD,XP(F)::QAR1(C)
- S(f);N_GUARD::QAR1(C),XS(f)
- S(f);N_GUARD::QAR1(C)
- P(l);N_GUARD::S(H),XP(j)
- Tries
- Try
- B(B);XR(g)
- Threat
- S(H)
- Vars
- B(a);OGATE,XP(F)::P(A)
- S(f);N_GUARD,XP(D)::QAR1(C)
- S(f);N_GUARD,XP(F)::QAR1(C)
- B(a);OGATE::P(A)
- Refutation
- P(i);
- Try
- Actual
- Q(C);
- Vars
- B(a);OGATE,XP(F)::P(A)
- S(f);N_GUARD,XP(D)::QAR1(C)
- S(f);N_GUARD,XP(F)::QAR1(C)
- P(i);OGATEB::QAB(C)
- R(c);N_GUARD::S(E)
- R(c);N_GUARD::S(E),XR(c)
- R(g);N_GUARD::S(H)
- R(g);N_GUARD::S(H),XR(g)
- B(a);OGATE::P(A)
- B(k);OGATE::QAB(C)
- S(f);N_GUARD::QAR1(C)
- S(f);N_GUARD::QAR1(C),XS(f)
- P(l);N_GUARD::S(H),XP(j)
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).