MESON Chess Problem Database
Problem Display
PID: 239028 (3R4/Q2nK1P1/2p5/1pn2R1p/1Pr1k1PP/2r1P3/N7/B2N1B2 w - - 0 1)
Petite, Efren
Problemas, 2014
#2
13 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rd3
- 2.Bg2#
- 1...Rxe3
- 2.Sf2#
- 1...Rxb4
- 2.Saxc3#
- 1...Rd4
- 2.Saxc3#
- 1...Sb3
- 2.Sf2#
- 1...Sd3
- 2.Bg2#
- 1...Sa4
- 2.Sf2#
- 1...Sa6
- 2.Sf2#
- 1...Se6
- 2.Sf2#
- 1...Sb7
- 2.Sf2#
- 1...Se5
- 2.Rf4#
- 1...Sb6
- 2.Bg2#
- 1...Sf6
- 2.Bg2#
- 1...Sb8
- 2.Bg2#
- 1...Sf8
- 2.Bg2#
- 1...Rd3
- Tries
- 1.Rxd7?
- threat
- 2.Bg2#
- 1...Rxe3
- 2.Sf2#
- 1...Sxd7
- 2.Sf2#
- 1...Rc2
- 2.Rf4#
- 1...Rd4
- 2.Saxc3#
- 2.Rxd4#
- 1...hxg4!
- threat
- 1.Qxc5?
- threat
- 2.Sf2#
- 2.Rf4#
- 1...Rxe3
- 2.Sf2#
- 2.Qxe3#
- 1...Sxc5
- 2.Bg2#
- 1...Rc2
- 2.Rf4#
- 1...Rd4
- 2.Saxc3#
- 2.Rf4#
- 2.Qxd4#
- 1...Rxc5!
- threat
- 1.Qb6?
- threat
- 2.Qxc6#
- 1...Sxb6
- 2.Bg2#
- 1...Rd3
- 2.Bg2#
- 1...Rd4
- 2.Saxc3#
- 1...Sb3
- 2.Sf2#
- 1...Sd3
- 2.Bg2#
- 1...Sa4
- 2.Sf2#
- 1...Sa6
- 2.Sf2#
- 1...Se6
- 2.Sf2#
- 1...Sb7
- 2.Sf2#
- 1...Se5
- 2.Rf4#
- 1...Sf6
- 2.Bg2#
- 1...Sb8
- 2.Bg2#
- 1...hxg4!
- threat
- 1.Qb8?
- threat
- 2.Qf4#
- 1...Sxb8
- 2.Bg2#
- 1...Sd3
- 2.Bg2#
- 1...Se5
- 2.Rf4#
- 2.Qxe5#
- 1...Se6!
- threat
- 1.Qc7?
- threat
- 2.Qf4#
- 2.Qxc6#
- 1...hxg4
- 2.Qf4#
- 1...Rd3
- 2.Bg2#
- 2.Qf4#
- 1...Rd4
- 2.Saxc3#
- 2.Qf4#
- 1...Sb3
- 2.Qf4#
- 1...Sd3
- 2.Bg2#
- 1...Sa4
- 2.Qf4#
- 1...Sa6
- 2.Qf4#
- 1...Sb7
- 2.Qf4#
- 1...Se5
- 2.Rf4#
- 2.Qxe5#
- 1...Sb6
- 2.Bg2#
- 2.Rf4#
- 2.Qf4#
- 2.Qe5#
- 1...Sf6
- 2.Bg2#
- 2.Rf4#
- 2.Qf4#
- 2.Qe5#
- 1...Sb8
- 2.Bg2#
- 2.Rf4#
- 2.Qf4#
- 2.Qe5#
- 1...Se6!
- threat
- 1.Qxd7?
- threat
- 2.Bg2#
- 2.Qxc6#
- 1...Rxe3
- 2.Sf2#
- 2.Qxc6#
- 1...hxg4
- 2.Bg2#
- 1...Rc2
- 2.Rf4#
- 2.Qxc6#
- 1...Rd3
- 2.Bg2#
- 2.Rf4#
- 1...Rd4
- 2.Saxc3#
- 2.Qxd4#
- 1...Sb3
- 2.Bg2#
- 2.Qe6#
- 1...Sd3
- 2.Bg2#
- 1...Sa4
- 2.Bg2#
- 2.Qe6#
- 1...Sa6
- 2.Bg2#
- 2.Qe6#
- 1...Se6
- 2.Bg2#
- 2.Qxe6#
- 1...Sb7
- 2.Bg2#
- 2.Qe6#
- 1...Sxd7!
- threat
- 1.g8B?
- 1...Rxe3
- 2.Sf2#
- 1...Rxb4
- 2.Saxc3#
- 1...Rc1
- 2.Rf4#
- 1...Rc2
- 2.Rf4#
- 1...Ra3
- 2.Rf4#
- 1...Rb3
- 2.Rf4#
- 1...Rd3
- 2.Bg2#
- 2.Rf4#
- 1...Rd4
- 2.Saxc3#
- 1...Sb3
- 2.Sf2#
- 1...Sd3
- 2.Bg2#
- 1...Sa4
- 2.Sf2#
- 1...Sa6
- 2.Sf2#
- 1...Se6
- 2.Sf2#
- 1...Sb7
- 2.Sf2#
- 1...Se5
- 2.Rf4#
- 1...Sb6
- 2.Bg2#
- 1...Sf6
- 2.Bg2#
- 1...Sb8
- 2.Bg2#
- 1...Sf8
- 2.Bg2#
- 1...hxg4!
- 1...Rxe3
- 1.Rxd7?
- Keys
- 1.g8Q!
- 1...Rxe3
- 2.Sf2#
- 1...Rxb4
- 2.Saxc3#
- 1...hxg4
- 2.Qxg4#
- 1...Rc1
- 2.Rf4#
- 1...Rc2
- 2.Rf4#
- 1...Ra3
- 2.Rf4#
- 1...Rb3
- 2.Rf4#
- 1...Rd3
- 2.Bg2#
- 2.Rf4#
- 1...Rd4
- 2.Saxc3#
- 1...Sb3
- 2.Sf2#
- 1...Sd3
- 2.Bg2#
- 1...Sa4
- 2.Sf2#
- 1...Sa6
- 2.Sf2#
- 1...Se6
- 2.Sf2#
- 1...Sb7
- 2.Sf2#
- 1...Se5
- 2.Rf4#
- 1...Sb6
- 2.Bg2#
- 1...Sf6
- 2.Bg2#
- 1...Sb8
- 2.Bg2#
- 1...Sf8
- 2.Bg2#
- 1...Rxe3
- 1.g8Q!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- R(a);SBLOCK::B(C)
- R(a);SBLOCK,XP(E)::S(B)
- R(b);N_GUARD,XP(F)::S(D),XR(a)
- R(b);N_GUARD::S(D),XR(a)
- S(e);::S(B)
- S(e);SBLOCK::B(C)
- S(h);SBLOCK::R1(I)
- S(h);::B(C)
- Tries
- Try
- R(M);XS(h)
- Threat
- B(C)
- Vars
- R(a);SBLOCK,XP(E)::S(B)
- S(e);XR(M)::S(B)
- R(a);::R1(I)
- Refutation
- P(f);XP(G)
- Try
- Q(J);XS(e)
- Threat
- DUALS(2)
- Vars
- S(h);XQ(J)::B(C)
- R(a);::R1(I)
- Refutation
- R(b);XQ(J)
- Try
- Q(J);
- Threat
- QAB(J),XP(g)
- Vars
- S(h);XQ(J)::B(C)
- R(a);SBLOCK::B(C)
- R(b);N_GUARD::S(D),XR(a)
- S(e);::S(B)
- S(e);SBLOCK::B(C)
- S(h);SBLOCK::R1(I)
- S(h);::B(C)
- Refutation
- P(f);XP(G)
- Try
- Q(J);
- Threat
- QAR1(J)
- Vars
- S(h);XQ(J)::B(C)
- S(e);SBLOCK::B(C)
- Refutation
- S(e);
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- P(f);XP(G)::QAR1(J)
- S(e);::QAR1(J)
- S(e);SBLOCK::B(C)
- Refutation
- S(e);
- Try
- Q(J);XS(h)
- Threat
- DUALS(2)
- Vars
- P(f);XP(G)::B(C)
- S(e);::B(C)
- Refutation
- S(e);XQ(J)
- Try
- P(L);
- Vars
- R(a);SBLOCK,XP(E)::S(B)
- R(b);N_GUARD,XP(F)::S(D),XR(a)
- R(a);::R1(I)
- R(b);N_GUARD::S(D),XR(a)
- S(e);::S(B)
- S(e);SBLOCK::B(C)
- S(h);SBLOCK::R1(I)
- S(h);::B(C)
- Refutation
- P(f);XP(G)
- Try
- Actual
- P(L);
- Vars
- R(a);SBLOCK,XP(E)::S(B)
- R(b);N_GUARD,XP(F)::S(D),XR(a)
- P(f);OGATE,XP(G)::QAR2(L),XP(f)
- R(a);::R1(I)
- R(b);N_GUARD::S(D),XR(a)
- S(e);::S(B)
- S(e);SBLOCK::B(C)
- S(h);SBLOCK::R1(I)
- S(h);::B(C)
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).