MESON Chess Problem Database
Problem Display
PID: 201499 (4n3/5Bn1/qrpBNp2/1b3k1P/pr2p2K/b3p1p1/1p1R2P1/1Q6 w - - 0 1)
Rivera, Luis G
Comm., L'Alfiere di Re, 1922
#2
8 + 15
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rb3
- 2.Sd4#
- 1...Rc4
- 2.Qf1#
- 1...Rd4
- 2.Sxd4#
- 1...Bc4
- 2.Sd4#
- 1...Sxe6
- 2.Bg6#
- 1...Sc7
- 2.Sxg7#
- 1...c5
- 2.Rd5#
- 1...Rb3
- Tries
- 1.Rf2+?
- 1...gxf2
- 2.g4#
- 1...exf2!
- 1...gxf2
- 1.Qc2?
- threat
- 2.Qc5#
- 1...Sxe6
- 2.Bg6#
- 1...Rb3
- 2.Sd4#
- 1...Rd4
- 2.Sxd4#
- 1...Bc4
- 2.Sd4#
- 1...Sc7
- 2.Sxg7#
- 1...c5
- 2.Rd5#
- 2.Qxc5#
- 1...Rc4!
- threat
- 1.Rf2+?
- Keys
- 1.Rc2!
- threat
- 2.Rc5#
- 1...Sxe6
- 2.Bg6#
- 1...Rb3
- 2.Sd4#
- 1...Rc4
- 2.Qf1#
- 1...Rd4
- 2.Sxd4#
- 1...Bc4
- 2.Sd4#
- 1...Sc7
- 2.Sxg7#
- 1...c5
- 2.Rxc5#
- threat
- 1.Rc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::S(G)
- R(f);S_CUTB(h)::QAR(A)
- R(f);N_GUARD::S(G),XR(f)
- B(h);S_CUTR(f)::S(G)
- S(n);SBLOCK,XS(G)::B(H)
- S(o);N_GUARD::S(G),XS(n)
- P(l);N_GUARD::R(B)
- Tries
- Try
- R(B);CHECK
- Vars
- P(d);OGATE,XR(B)::P(C)
- Refutation
- P(c);XR(B)
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- S(n);SBLOCK,XS(G)::B(H)
- R(f);N_GUARD::S(G)
- R(f);N_GUARD::S(G),XR(f)
- B(h);S_CUTR(f)::S(G)
- S(o);N_GUARD::S(G),XS(n)
- Refutation
- R(f);
- Try
- Actual
- R(B);N_PINP(g)
- Threat
- R(B)
- Vars
- S(n);SBLOCK,XS(G)::B(H)
- R(f);N_GUARD::S(G)
- R(f);S_CUTB(h)::QAR(A)
- R(f);N_GUARD::S(G),XR(f)
- B(h);S_CUTR(f)::S(G)
- S(o);N_GUARD::S(G),XS(n)
- P(l);::R(B),XP(l)
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).