MESON Chess Problem Database
Problem Display
PID: 84809 (2R5/5Kp1/5p2/3k4/B1NB1RN1/nnr2P2/1r2P3/8 w - - 0 1)
Petite, Efren
Sakkelet, 1995
#2
9 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Sge3#
- 1...Rc2
- 2.Sge3#
- 1...Re3
- 2.Sgxe3#
- 1...Rxc4
- 2.Rd8#
- 1...Sa1
- 2.Rc5#
- 1...Sc1
- 2.Rc5#
- 1...Sd2
- 2.Rc5#
- 1...Sxd4
- 2.e4#
- 1...Sa5
- 2.Rc5#
- 1...Sc5
- 2.Rxc5#
- 1...g5
- 2.Sxf6#
- 1...g6
- 2.Sxf6#
- 1...Rc1
- Tries
- 1.Ke7?
- threat
- 2.Sb6#
- 1...Re3+
- 2.Scxe3#
- 2.Sgxe3#
- 1...Rxc4
- 2.Se3#
- 2.Rd8#
- 1...Sxc4
- 2.Bc6#
- 1...Sxd4
- 2.e4#
- 1...Sc5
- 2.Rxc5#
- 1...Sa1
- 2.Rc5#
- 1...Sc1
- 2.Rc5#
- 1...Sd2
- 2.Rc5#
- 1...Sa5
- 2.Rc5#
- 1...Rxe2+!
- threat
- 1.Bg1?
- threat
- 2.Bc6#
- 2.Rf5#
- 2.Rd8#
- 2.e4#
- 1...Rxe2
- 2.Bc6#
- 2.Rd8#
- 1...Rxf3
- 2.Bc6#
- 2.Rd8#
- 2.e4#
- 1...Rxc4
- 2.Rd8#
- 1...Re3
- 2.Sgxe3#
- 1...Sb5
- 2.Rf5#
- 2.e4#
- 1...Sd2
- 2.Bc6#
- 2.Rd4#
- 2.Rf5#
- 2.Rc5#
- 2.Rd8#
- 1...Sd4
- 2.Rxd4#
- 2.e4#
- 1...Sa5
- 2.Rd4#
- 2.Rf5#
- 2.Rc5#
- 2.Rd8#
- 2.e4#
- 1...Sc5
- 2.Bc6#
- 2.Rd4#
- 2.Rxc5#
- 1...f5
- 2.Bc6#
- 2.Rxf5#
- 2.Rd8#
- 1...g6
- 2.Sxf6#
- 2.Bc6#
- 2.Rd8#
- 2.e4#
- 1...Sxc4!
- threat
- 1.Bf2?
- threat
- 2.Bc6#
- 2.Rf5#
- 2.Rd8#
- 2.e4#
- 1...Rxe2
- 2.Bc6#
- 2.Rd8#
- 1...Rxf3
- 2.Bc6#
- 2.Rd8#
- 2.e4#
- 1...Rxc4
- 2.Rd8#
- 1...Re3
- 2.Sgxe3#
- 1...Sb5
- 2.Rf5#
- 2.e4#
- 1...Sd2
- 2.Bc6#
- 2.Rd4#
- 2.Rf5#
- 2.Rc5#
- 2.Rd8#
- 1...Sd4
- 2.Rxd4#
- 2.e4#
- 1...Sa5
- 2.Rd4#
- 2.Rf5#
- 2.Rc5#
- 2.Rd8#
- 2.e4#
- 1...Sc5
- 2.Bc6#
- 2.Rd4#
- 2.Rxc5#
- 1...f5
- 2.Bc6#
- 2.Rxf5#
- 2.Rd8#
- 1...g6
- 2.Sxf6#
- 2.Bc6#
- 2.Rd8#
- 2.e4#
- 1...Sxc4!
- threat
- 1.Be3?
- threat
- 2.Bc6#
- 2.Rf5#
- 2.Rd8#
- 1...Rxe3
- 2.Sgxe3#
- 1...Rxc4
- 2.Rd8#
- 1...Sb5
- 2.Rf5#
- 1...Sd4
- 2.Rxd4#
- 1...Sa5
- 2.Rd4#
- 2.Rf5#
- 2.Rc5#
- 2.Rd8#
- 1...Sc5
- 2.Bc6#
- 2.Rd4#
- 2.Rxc5#
- 1...f5
- 2.Bc6#
- 2.Rxf5#
- 2.Rd8#
- 1...g6
- 2.Sxf6#
- 2.Bc6#
- 2.Rd8#
- 1...Sxc4!
- threat
- 1.Bb6?
- threat
- 2.Bc6#
- 2.Rf5#
- 2.Rd8#
- 2.e4#
- 1...Rxe2
- 2.Bc6#
- 2.Rd8#
- 1...Rxf3
- 2.Bc6#
- 2.Rd8#
- 2.e4#
- 1...Rxc4
- 2.Rd8#
- 1...Re3
- 2.Sgxe3#
- 2.Bc6#
- 2.Rd8#
- 1...Sb5
- 2.Rf5#
- 2.e4#
- 1...Sd2
- 2.Bc6#
- 2.Rd4#
- 2.Rf5#
- 2.Rc5#
- 2.Rd8#
- 1...Sd4
- 2.Rxd4#
- 2.Rc5#
- 2.e4#
- 1...Sa5
- 2.Rd4#
- 2.Rf5#
- 2.Rc5#
- 2.Rd8#
- 2.e4#
- 1...Sc5
- 2.Bc6#
- 2.Rxc5#
- 1...f5
- 2.Bc6#
- 2.Rxf5#
- 2.Rd8#
- 1...g6
- 2.Sxf6#
- 2.Bc6#
- 2.Rd8#
- 2.e4#
- 1...Sxc4!
- threat
- 1.Ba7?
- threat
- 2.Bc6#
- 2.Rf5#
- 2.Rd8#
- 2.e4#
- 1...Rxe2
- 2.Bc6#
- 2.Rd8#
- 1...Rxf3
- 2.Bc6#
- 2.Rd8#
- 2.e4#
- 1...Rxc4
- 2.Rd8#
- 1...Re3
- 2.Sgxe3#
- 2.Bc6#
- 2.Rd8#
- 1...Sb5
- 2.Rf5#
- 2.e4#
- 1...Sd2
- 2.Bc6#
- 2.Rd4#
- 2.Rf5#
- 2.Rc5#
- 2.Rd8#
- 1...Sd4
- 2.Rxd4#
- 2.Rc5#
- 2.e4#
- 1...Sa5
- 2.Rd4#
- 2.Rf5#
- 2.Rc5#
- 2.Rd8#
- 2.e4#
- 1...Sc5
- 2.Bc6#
- 2.Rxc5#
- 1...f5
- 2.Bc6#
- 2.Rxf5#
- 2.Rd8#
- 1...g6
- 2.Sxf6#
- 2.Bc6#
- 2.Rd8#
- 2.e4#
- 1...Sxc4!
- threat
- 1.e3?
- threat
- 2.Rf5#
- 1...Rxe3
- 2.Sgxe3#
- 1...Rxc4
- 2.Rd8#
- 1...Sxd4
- 2.Rxd4#
- 2.e4#
- 1...Sc5
- 2.Rxc5#
- 1...f5
- 2.Rxf5#
- 1...g6
- 2.Sxf6#
- 1...Sxc4!
- threat
- 1.Ke7?
- Keys
- 1.Bc5!
- threat
- 2.Sb6#
- 1...Rxc4
- 2.Rf5#
- 1...Sxc4
- 2.e4#
- 1...Sxc5
- 2.Bc6#
- 1...Sd4
- 2.Rxd4#
- 1...Sa1
- 2.Rd4#
- 1...Sc1
- 2.Rd4#
- 1...Sd2
- 2.Rd4#
- 1...Sa5
- 2.Rd4#
- threat
- 1.Bc5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 7
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(d);N_GUARD::S(G)
- R(d);N_GUARD::S(G),XR(d)
- R(d);SBLOCK,XS(D)::R(I)
- S(c);N_GUARD::R1(I)
- S(c);SBLOCK,XB(E)::P(A)
- S(c);N_GUARD::R1(I),XS(c)
- P(g);N_GUARD::S(G),XP(f)
- Tries
- Try
- K(H);P-FLIGHT
- Threat
- S(D)
- Vars
- S(b);SBLOCK,XS(D)::B(C)
- S(c);SBLOCK,XB(E)::P(A)
- S(c);N_GUARD::R1(I),XS(c)
- S(c);N_GUARD::R1(I)
- Refutation
- R(a);CHECK,XP(A)
- Try
- B(E);
- Threat
- DUALS(4)
- Vars
- R(d);XS(D)::R(I)
- R(d);N_GUARD::S(G),XR(d)
- Refutation
- S(b);XS(D)
- Try
- B(E);
- Threat
- DUALS(4)
- Vars
- R(d);XS(D)::R(I)
- R(d);N_GUARD::S(G),XR(d)
- Refutation
- S(b);XS(D)
- Try
- B(E);
- Threat
- DUALS(3)
- Vars
- R(d);XB(E)::S(G),XR(d)
- R(d);XS(D)::R(I)
- S(b);::R(F)
- S(c);N_GUARD::R1(F),XS(c)
- Refutation
- S(b);XS(D)
- Try
- B(E);
- Threat
- DUALS(4)
- Vars
- R(d);XS(D)::R(I)
- Refutation
- S(b);XS(D)
- Try
- B(E);
- Threat
- DUALS(4)
- Vars
- R(d);XS(D)::R(I)
- Refutation
- S(b);XS(D)
- Try
- P(A);
- Threat
- R(F)
- Vars
- R(d);XP(A)::S(G),XR(d)
- R(d);SBLOCK,XS(D)::R(I)
- S(c);N_GUARD::R1(I),XS(c)
- P(f);::R(F),XP(f)
- P(g);N_GUARD::S(G),XP(f)
- Refutation
- S(b);XS(D)
- Try
- Actual
- B(E);
- Threat
- S(D)
- Vars
- R(d);SBLOCK,XS(D)::R(F)
- S(b);SBLOCK,XS(D)::P(A)
- S(c);SBLOCK,XB(E)::B(C)
- S(c);N_GUARD::R1(F),XS(c)
- S(c);N_GUARD::R1(F)
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).