MESON Chess Problem Database
Problem Display
PID: 139617 (6B1/3P2N1/bR6/Kpk5/p1NpP2b/p5r1/p4r1B/Q4Rq1 w - - 0 1)
Petite, Efren
Mat Plus, 1999
#2
10 + 11
| 6490 | yacpdb | 2011 |
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.Rf5#
- 1...Rc2
- 2.Rf5#
- 1...Rd2
- 2.Rf5#
- 1...Re2
- 2.Rf5#
- 1...Rfg2
- 2.Rf5#
- 1...Rxh2
- 2.Rf5#
- 1...Rf5
- 2.Rxf5#
- 1...Rgg2
- 2.Bd6#
- 1...Rb3
- 2.Bd6#
- 1...Rc3
- 2.Bd6#
- 1...Rd3
- 2.Bd6#
- 1...Re3
- 2.Bd6#
- 1...Rf3
- 2.Bd6#
- 1...Rh3
- 2.Bd6#
- 1...Rg4
- 2.Bd6#
- 1...Rg5
- 2.Bd6#
- 1...Rxg7
- 2.Bd6#
- 1...Bc8
- 2.dxc8Q#
- 2.dxc8R#
- 1...d3
- 2.Qe5#
- 1...bxc4
- 2.Se6#
- 1...Rb2
- Tries
- 1.Sd2?
- threat
- 2.Se6#
- 1...Rxd2
- 2.Rf5#
- 1...Rxg7
- 2.Bd6#
- 2.Qc1#
- 1...Rg6
- 2.Qc1#
- 1...Rf6!
- threat
- 1.Se3?
- threat
- 2.Se6#
- 1...Rxe3
- 2.Bd6#
- 1...Rxg7
- 2.Bd6#
- 1...dxe3
- 2.Qc3#
- 2.Qe5#
- 1...Rf6
- 2.Qc1#
- 1...Rg6!
- threat
- 1.Se5?
- threat
- 2.Se6#
- 2.Rc6#
- 1...Rxg7
- 2.Sd3#
- 2.Rc6#
- 1...Rg6
- 2.Sd3#
- 1...Bd8
- 2.Se6#
- 1...Bb7
- 2.Se6#
- 1...Rf6!
- threat
- 1.Qb2?
- threat
- 2.Qb4#
- 1...Rxb2
- 2.Rf5#
- 1...Rb3
- 2.Bd6#
- 1...d3
- 2.Qe5#
- 1...b4
- 2.Qxb4#
- 1...axb2!
- threat
- 1.Qc3?
- threat
- 2.Se6#
- 2.Qb4#
- 1...Rxc3
- 2.Bd6#
- 1...Rxg7
- 2.Bd6#
- 2.Qb4#
- 1...Rf6
- 2.Qb4#
- 1...Rb2
- 2.Se6#
- 2.Rf5#
- 1...Rg6
- 2.Qb4#
- 1...d3
- 2.Sb2#
- 2.Sd2#
- 2.Sxa3#
- 2.Se3#
- 2.Se5#
- 2.Sd6#
- 2.Se6#
- 2.Qe5#
- 1...b4
- 2.Se6#
- 2.Qxb4#
- 1...dxc3!
- threat
- 1.Qe1?
- threat
- 2.Qb4#
- 1...Rb2
- 2.Rf5#
- 1...Rd2
- 2.Rf5#
- 1...Rb3
- 2.Bd6#
- 1...Rc3
- 2.Bd6#
- 1...b4
- 2.Qxb4#
- 1...d3!
- threat
- 1.d8Q?
- threat
- 2.Qaxd4#
- 2.Qc7#
- 2.Qdxd4#
- 2.Qd5#
- 2.Qd6#
- 1...Rxf1
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Rxh2
- 2.Rf5#
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Rxg7
- 2.Bd6#
- 2.Qaxd4#
- 2.Qdxd4#
- 2.Qd5#
- 2.Qd6#
- 1...Rf7
- 2.Qd5#
- 1...Rf6
- 2.Qd5#
- 1...Rb2
- 2.Rf5#
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Rc2
- 2.Rf5#
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Rd2
- 2.Rf5#
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Re2
- 2.Rf5#
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Rfg2
- 2.Rf5#
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Rff3
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Rf4
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Rf5
- 2.Rxf5#
- 2.Qc7#
- 2.Qd6#
- 1...Rf8
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Rc3
- 2.Bd6#
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Rd3
- 2.Bd6#
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Rg5
- 2.Bd6#
- 2.Qaxd4#
- 2.Qc7#
- 2.Qe7#
- 2.Qdxd4#
- 2.Qd6#
- 1...Rg6
- 2.Qaxd4#
- 2.Qdxd4#
- 2.Qd5#
- 1...Bf6
- 2.Qc7#
- 2.Qd5#
- 2.Qd6#
- 1...Be7
- 2.Qaxd4#
- 2.Qc7#
- 2.Qxe7#
- 2.Qdxd4#
- 2.Qd5#
- 1...Bb7
- 2.Qaxd4#
- 2.Qdxd4#
- 2.Qd6#
- 1...d3
- 2.Qad4#
- 2.Qe5#
- 2.Qc7#
- 2.Qdd4#
- 2.Qd5#
- 2.Qd6#
- 1...Bxd8!
- threat
- 1.Sd2?
- Keys
- 1.Qc1!
- threat
- 2.Se6#
- 1...Rxg7
- 2.Sd2#
- 2.Bd6#
- 1...Rf6
- 2.Se3#
- 1...Rc2
- 2.Rf5#
- 1...Rc3
- 2.Bd6#
- 1...Rg6
- 2.Sd2#
- threat
- 1.Qc1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 17
- Sets
- R(c);OGATE::R(B)
- R(c);OGATE,XB(C)::R(B)
- R(c);OGATE::R(B),XR(c)
- R(e);OGATE::B(C)
- R(e);OGATE,XS(I)::B(C)
- B(k);OGATE::PXB(k)=Q
- P(g);OGATE::QAR2(A)
- P(i);SBLOCK,XS(D)::S(I)
- Tries
- Try
- S(D);
- Threat
- S(I)
- Vars
- R(c);OGATE,XS(D)::R(B)
- R(e);N_GUARD::QAR(A)
- Refutation
- R(c);
- Try
- S(D);
- Threat
- S(I)
- Vars
- R(e);OGATE,XS(D)::B(C)
- R(e);OGATE,XS(I)::B(C)
- R(c);N_GUARD::QAR(A)
- Refutation
- R(e);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD::S(D)
- B(h);P_PINR(G)::S(I)
- B(k);::S(I)
- Refutation
- R(c);
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(c);OGATE,XQ(A)::R(B)
- R(e);OGATE::B(C)
- P(g);OGATE::QAR2(A)
- P(i);::QAB1(A),XP(i)
- Refutation
- P(d);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(e);OGATE,XQ(A)::B(C)
- R(c);::QAB1(A)
- R(e);::QAB1(A)
- Refutation
- P(g);XQ(A)
- Try
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(c);OGATE::R(B)
- R(e);OGATE::B(C)
- P(i);::QAB1(A),XP(i)
- Refutation
- P(g);
- Try
- P(H);
- Threat
- DUALS(5)
- Vars
- R(c);::QAR1(H)
- Refutation
- B(h);P_PINR(G),XQ(H)
- Try
- Actual
- Q(A);
- Threat
- S(I)
- Vars
- R(c);N_GUARD::QAR(A)+S(D)
- R(c);OGATE::R(B)
- R(e);OGATE::B(C)
- R(e);N_GUARD::QAR(A)+S(D)
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).