MESON Chess Problem Database
Problem Display
PID: 117412 (4k2K/P2N3R/1B2N3/2p3pn/r1R4r/7Q/B7/8 w - - 0 1)
Llamas, Juan Garcia
Agrupacion Artistica Aragonese, 1949
#2
9 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb4
- 2.a8Q#
- 2.a8R#
- 1...Raxc4
- 2.a8Q#
- 2.a8R#
- 1...Rhxc4
- 2.Qxh5#
- 1...Rd4
- 2.Qxh5#
- 1...Re4
- 2.Qxh5#
- 1...Rg4
- 2.Qxh5#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Rb4
- Tries
- 1.Sg7+?
- 1...Ke7
- 2.Qe6#
- 1...Kf7
- 2.Qe6#
- 1...Sxg7!
- 1...Ke7
- 1.Bxc5?
- threat
- 2.Re7#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7!
- threat
- 1.Bd8?
- threat
- 2.Re7#
- 1...Sg3
- 2.Sf6#
- 1...Sf4
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sg7!
- threat
- 1.Rxa4?
- threat
- 2.a8Q#
- 2.a8R#
- 1...Rxh3
- 2.a8Q#
- 2.a8R#
- 1...Rxa4
- 2.Qxh5#
- 1...Rb4
- 2.Qxh5#
- 2.a8Q#
- 2.a8R#
- 1...Rc4
- 2.Qxh5#
- 2.a8Q#
- 2.a8R#
- 1...Rd4
- 2.Qxh5#
- 2.a8Q#
- 2.a8R#
- 1...Re4
- 2.Qxh5#
- 2.a8Q#
- 2.a8R#
- 1...Rf4
- 2.a8Q#
- 2.a8R#
- 1...Rg4
- 2.Qxh5#
- 2.a8Q#
- 2.a8R#
- 1...Sg3
- 2.Sf6#
- 2.a8Q#
- 2.a8R#
- 1...Sf4
- 2.Sf6#
- 2.a8Q#
- 2.a8R#
- 1...Sf6
- 2.Sxf6#
- 2.a8Q#
- 2.a8R#
- 1...c4
- 2.a8Q#
- 2.a8R#
- 1...g4
- 2.a8Q#
- 2.a8R#
- 1...Sg7!
- threat
- 1.Rxc5?
- threat
- 2.Rc8#
- 1...Rac4
- 2.a8Q#
- 2.a8R#
- 1...Rhc4
- 2.Qxh5#
- 1...Sg7!
- threat
- 1.Qf3?
- threat
- 2.Qa8#
- 2.Qf7#
- 2.Qf8#
- 1...Rxa7
- 2.Qf7#
- 2.Qf8#
- 1...Rf4
- 2.Qa8#
- 1...Re4
- 2.Qxh5#
- 2.Qf7#
- 2.Qf8#
- 1...Sf4
- 2.Sf6#
- 2.Qa8#
- 1...Sf6
- 2.Sxf6#
- 2.Qa8#
- 1...Sg7!
- threat
- 1.Sg7+?
- Keys
- 1.Re4!
- threat
- 2.Sg7#
- 1...Rxa2
- 2.Sf4#
- 1...Raxe4
- 2.a8Q#
- 2.a8R#
- 1...Rxh3
- 2.Sd4#
- 1...Rhxe4
- 2.Qxh5#
- 1...Sg7
- 2.Sxg7#
- 1...Rc4
- 2.a8Q#
- 2.a8R#
- 1...Rg4
- 2.Qxh5#
- 1...c4
- 2.Sf4#
- 1...g4
- 2.Sd4#
- threat
- 1.Re4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 5
- Sets
- R(a);N_GUARD::P=Q
- R(a);N_GUARD,XR(C)::P=Q
- R(b);OGATE,XR(C)::QAB(B),XS(e)
- R(b);OGATE::QAB(B),XS(e)
- S(e);N_GUARD,P_PINR(H)::S(G)
- S(e);N_GUARD,P_PINR(H)::S(G),XS(e)
- Tries
- Try
- S(E);CHECK
- Vars
- K(f);P-FLIGHT::QAR1(B)
- K(f);S_FLIGHT::QAB1(B)
- Refutation
- S(e);P_PINR(H),XS(E)
- Try
- B(D);XP(c)
- Threat
- R1(H)
- Vars
- S(e);N_GUARD,P_PINR(H)::S(G)
- S(e);N_GUARD,P_PINR(H)::S(G),XS(e)
- Refutation
- S(e);P_PINR(H)
- Try
- B(D);
- Threat
- R1(H)
- Vars
- S(e);N_GUARD,P_PINR(H)::S(G)
- S(e);N_GUARD,P_PINR(H)::S(G),XS(e)
- Refutation
- S(e);P_PINR(H)
- Try
- R(C);XR(a)
- Threat
- P=Q
- Vars
- R(b);XQ(B)::P=Q
- R(b);OGATE,XR(C)::QAB(B),XS(e)
- R(b);::P=Q
- P(c);::P=Q
- P(d);::P=Q
- Refutation
- S(e);P_PINR(H)
- Try
- R(C);XP(c)
- Threat
- R(C)
- Vars
- R(a);N_GUARD::P=Q
- R(b);OGATE::QAB(B),XS(e)
- Refutation
- S(e);P_PINR(H)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- R(b);::QAR(B)
- Refutation
- S(e);P_PINR(H)
- Try
- Actual
- R(C);
- Threat
- R(C)+S(E),DCHECK
- Vars
- R(a);N_GUARD,XB(A)::R(C)+S(E)
- R(a);N_GUARD,XR(C)::P=Q
- R(b);N_GUARD,XQ(B)::R(C)+S(E)
- R(b);OGATE,XR(C)::QAB(B),XS(e)
- S(e);P_PINR(H)::R(C)+S(E),DCHECK,XS(e)
- R(a);N_GUARD::P=Q
- R(b);OGATE::QAB(B),XS(e)
- P(c);S_CUTR(a)::R(C)+S(E)
- P(d);S_CUTR(b)::R(C)+S(E)
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).