MESON Chess Problem Database
Problem Display
PID: 181151 (6rr/2R4q/2p2Q2/2P1nP2/1NPB4/1PKP1pR1/2PN1P2/k7 w - - 0 1)
Pradignat, Emile Leonard
Prager Tagblatt, 1904
#2
14 + 7
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qxf5
- 2.Ra7#
- 1...Qg6
- 2.Ra7#
- 1...Qh1
- 2.Ra7#
- 1...Qh2
- 2.Ra7#
- 1...Qh3
- 2.Ra7#
- 1...Qh4
- 2.Ra7#
- 1...Qh5
- 2.Ra7#
- 1...Qh6
- 2.Ra7#
- 1...Ra8
- 2.Rg1#
- 1...Rb8
- 2.Rg1#
- 1...Rc8
- 2.Rg1#
- 1...Rd8
- 2.Rg1#
- 1...Re8
- 2.Rg1#
- 1...Rf8
- 2.Rg1#
- 1...Sxd3
- 2.Kxd3#
- 1...Sxc4
- 2.Kxc4#
- 1...Sg4
- 2.Rg1#
- 1...Sg6
- 2.Rg1#
- 1...Sd7
- 2.Ra7#
- 1...Sf7
- 2.Ra7#
- 1...Qxf5
- Tries
- 1.Qxe5?
- threat
- 2.Qe1#
- 1...Qh1
- 2.Ra7#
- 1...Re8
- 2.Rg1#
- 1...Qe7!
- threat
- 1.Qg5?
- threat
- 2.Rg1#
- 1...Sxd3
- 2.Kxd3#
- 1...Qh1
- 2.Ra7#
- 1...Qh2
- 2.Ra7#
- 1...Qh3
- 2.Ra7#
- 1...Rxg5!
- threat
- 1.Qe7?
- threat
- 2.Ra7#
- 1...Sxc4
- 2.Kxc4#
- 2.Qe1#
- 1...Ra8
- 2.Rg1#
- 1...Qxe7!
- threat
- 1.Qg6?
- threat
- 2.Rg1#
- 1...Qxg6
- 2.Ra7#
- 1...Sxd3
- 2.Kxd3#
- 1...Qh1
- 2.Ra7#
- 1...Qh2
- 2.Ra7#
- 1...Qh3
- 2.Ra7#
- 1...Rxg6!
- threat
- 1.Qf7?
- threat
- 2.Ra7#
- 1...Sxc4
- 2.Kxc4#
- 1...Ra8
- 2.Rg1#
- 1...Qxf7!
- threat
- 1.Qxe5?
- Keys
- 1.Qxh8!
- 1...Qxf5
- 2.Ra7#
- 2.Qh1#
- 1...Qxc7
- 2.Qh1#
- 1...Qxh8
- 2.Ra7#
- 1...Rxg3
- 2.Qa8#
- 1...Rxh8
- 2.Rg1#
- 1...Sxd3
- 2.Kxd3#
- 1...Sxc4
- 2.Kxc4#
- 1...Qg6
- 2.Ra7#
- 2.Qh1#
- 1...Qh1
- 2.Ra7#
- 2.Qxh1#
- 1...Qh2
- 2.Ra7#
- 1...Qh3
- 2.Ra7#
- 1...Qh4
- 2.Ra7#
- 1...Qh5
- 2.Ra7#
- 1...Qh6
- 2.Ra7#
- 1...Qd7
- 2.Qh1#
- 1...Qe7
- 2.Qh1#
- 1...Qf7
- 2.Qh1#
- 1...Qg7
- 2.Qh1#
- 1...Rg4
- 2.Qa8#
- 1...Rg5
- 2.Qa8#
- 1...Rg6
- 2.Qa8#
- 1...Rg7
- 2.Qa8#
- 1...Ra8
- 2.Rg1#
- 2.Qxa8#
- 1...Rb8
- 2.Rg1#
- 1...Rc8
- 2.Rg1#
- 1...Rd8
- 2.Rg1#
- 1...Re8
- 2.Rg1#
- 1...Rf8
- 2.Rg1#
- 1...Sg4
- 2.Rg1#
- 1...Sg6
- 2.Rg1#
- 1...Sd7
- 2.Ra7#
- 1...Sf7
- 2.Ra7#
- 1...Qxf5
- 1.Qxh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 12
- REMOVED MATES = 4
- Sets
- Q(e);N_GUARD,XP(L)::R(N)
- Q(e);N_GUARD::R(N)
- Q(e);N_GUARD,SBLOCK::R(N)
- R(f);N_GUARD::R(G)
- S(c);XP(F)::B(J)+K(E),XS(c)
- S(c);XP(I)::B(J)+K(E),XS(c)
- S(c);S_CUTR(f)::R(G)
- S(c);S_CUTQ(e)::R(N)
- Tries
- Try
- Q(M);XS(c)
- Threat
- QAR(M)
- Vars
- Q(e);N_GUARD,SBLOCK::R(N)
- R(f);N_GUARD::R(G)
- Refutation
- Q(e);
- Try
- Q(M);
- Threat
- R(G)
- Vars
- S(c);XP(F)::B(J)+K(E),XS(c)
- Q(e);N_GUARD,SBLOCK::R(N)
- Q(e);N_GUARD::R(N)
- Refutation
- R(f);XQ(M)
- Try
- Q(M);
- Threat
- R(N)
- Vars
- R(f);N_GUARD::R(G)
- Refutation
- Q(e);XQ(M)
- Try
- Q(M);
- Threat
- R(G)
- Vars
- Q(e);N_GUARD,XQ(M)::R(N)
- S(c);XP(F)::B(J)+K(E),XS(c)
- Q(e);N_GUARD,SBLOCK::R(N)
- Q(e);N_GUARD::R(N)
- Refutation
- R(f);XQ(M)
- Try
- Q(M);
- Threat
- R(N)
- Vars
- S(c);XP(I)::B(J)+K(E),XS(c)
- R(f);N_GUARD::R(G)
- Refutation
- Q(e);XQ(M)
- Try
- Actual
- Q(M);XR(g)
- Vars
- Q(e);OGATE,XR(N)::QAB1(M)
- Q(e);N_GUARD,XQ(M)::R(N)
- R(f);OGATE,XR(G)::QAB(M)
- R(f);N_GUARD,XQ(M)::R(G)
- S(c);XP(F)::B(J)+K(E),XS(c)
- S(c);XP(I)::B(J)+K(E),XS(c)
- Q(e);N_GUARD::R(N)
- Q(e);OGATE::QAB1(M)
- R(f);OGATE::QAB(M)
- R(f);N_GUARD::R(G)
- S(c);S_CUTR(f)::R(G)
- S(c);S_CUTQ(e)::R(N)
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).