MESON Chess Problem Database
Problem Display
PID: 115181 (B7/2B5/8/p1QP1p2/1r2k3/4p3/R1P3K1/1n1N1n2 w - - 0 1)
Bylevski, Aleksandr
Bylevski, Boris
diagrammes, 1990
#2
8 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb2
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Ra4
- 2.Rxa4#
- 1...Rc4
- 2.Qxc4#
- 1...Rd4
- 2.Qe7#
- 1...Rb5
- 2.Qc4#
- 1...Rb6
- 2.Qc4#
- 1...Rb7
- 2.Qc4#
- 1...Rb8
- 2.Qc4#
- 1...Sbd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sfd2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Sg3
- 2.Qxe3#
- 1...e2
- 2.Sf2#
- 1...a4
- 2.Qxb4#
- 1...Rb2
- Tries
- 1.Bh2?
- 1...Sxh2
- 2.Qxe3#
- 1...Sg3
- 2.Qxe3#
- 1...Rb2
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Ra4
- 2.Rxa4#
- 2.d6#
- 1...Rc4
- 2.Qxc4#
- 2.d6#
- 1...Rd4
- 2.Qe7#
- 1...Rb5
- 2.Qc4#
- 1...Rb6
- 2.Qc4#
- 1...Rb7
- 2.Qc4#
- 1...Rb8
- 2.Qc4#
- 1...Sbd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sfd2
- 2.Qxe3#
- 1...e2
- 2.Sf2#
- 1...a4
- 2.Qxb4#
- 1...f4!
- 1...Sxh2
- 1.Bg3?
- 1...Sxg3
- 2.Qxe3#
- 1...Rb2
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Ra4
- 2.Rxa4#
- 2.d6#
- 1...Rc4
- 2.Qxc4#
- 2.d6#
- 1...Rd4
- 2.Qe7#
- 1...Rb5
- 2.Qc4#
- 1...Rb6
- 2.Qc4#
- 1...Rb7
- 2.Qc4#
- 1...Rb8
- 2.Qc4#
- 1...Sbd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sfd2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...e2
- 2.Sf2#
- 1...a4
- 2.Qxb4#
- 1...f4!
- 1...Sxg3
- 1.Bb7?
- 1...Rxb7
- 2.Qc4#
- 1...Rd4
- 2.Qe7#
- 1...Rb2
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Ra4
- 2.Rxa4#
- 1...Rc4
- 2.Qxc4#
- 1...Rb5
- 2.Qc4#
- 1...Rb6
- 2.Qc4#
- 1...Sbd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sfd2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Sg3
- 2.Qxe3#
- 1...e2
- 2.Sf2#
- 1...a4
- 2.Qxb4#
- 1...f4!
- 1...Rxb7
- 1.Ra1?
- 1...Rd4
- 2.Qe7#
- 1...Rb2
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Ra4
- 2.Rxa4#
- 1...Rc4
- 2.Qxc4#
- 1...Rb5
- 2.Qc4#
- 1...Rb6
- 2.Qc4#
- 1...Rb7
- 2.Qc4#
- 1...Rb8
- 2.Qc4#
- 1...Sbd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sfd2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Sg3
- 2.Qxe3#
- 1...e2
- 2.Sf2#
- 1...a4
- 2.Qxb4#
- 1...f4!
- 1...Rd4
- 1.Ra3?
- 1...Sxa3
- 2.Sc3#
- 1...Rd4
- 2.Qe7#
- 1...Rb2
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Ra4
- 2.Rxa4#
- 1...Rc4
- 2.Qxc4#
- 1...Rb5
- 2.Qc4#
- 1...Rb6
- 2.Qc4#
- 1...Rb7
- 2.Qc4#
- 1...Rb8
- 2.Qc4#
- 1...Sbd2
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sfd2
- 2.Rxe3#
- 2.Qxe3#
- 1...Sh2
- 2.Rxe3#
- 2.Qxe3#
- 1...Sg3
- 2.Rxe3#
- 2.Qxe3#
- 1...e2
- 2.Sf2#
- 1...a4
- 2.Qxb4#
- 1...f4!
- 1...Sxa3
- 1.Ra4?
- 1...f4
- 2.d6#
- 1...Rd4
- 2.Rxd4#
- 2.Qxd4#
- 2.Qe7#
- 1...Rc4
- 2.Rxc4#
- 2.Qxc4#
- 1...Sbd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sfd2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Sg3
- 2.Qxe3#
- 1...e2
- 2.Sf2#
- 1...Rxa4!
- 1...f4
- 1.Rxa5?
- threat
- 2.Qxb4#
- 1...Rd4
- 2.Qe7#
- 1...Rb2
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Ra4
- 2.Rxa4#
- 1...Rc4
- 2.Qxc4#
- 1...Rb5
- 2.Qc4#
- 1...Rb6
- 2.Qc4#
- 1...Rb7
- 2.Qc4#
- 1...Rb8
- 2.Qc4#
- 1...Sbd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sfd2
- 2.Qxe3#
- 1...f4!
- threat
- 1.Qd6?
- threat
- 2.Qf4#
- 2.Qe5#
- 1...f4
- 2.Qxf4#
- 2.Qe5#
- 1...Rb7
- 2.Qe5#
- 1...Kd4!
- threat
- 1.d6+?
- 1...Rb7
- 2.Ra4#
- 1...Kf4!
- 1...Rb7
- 1.Bh2?
- Keys
- 1.Bc6!
- 1...f4
- 2.d6#
- 1...Rd4
- 2.Qe7#
- 1...Rb2
- 2.Qc4#
- 1...Rb3
- 2.Qc4#
- 1...Ra4
- 2.Rxa4#
- 1...Rc4
- 2.Qxc4#
- 1...Rb5
- 2.Qc4#
- 1...Rb6
- 2.Qc4#
- 1...Rb7
- 2.Qc4#
- 1...Rb8
- 2.Qc4#
- 1...Sbd2
- 2.Sc3#
- 1...Sa3
- 2.Sc3#
- 1...Sc3
- 2.Sxc3#
- 1...Sfd2
- 2.Qxe3#
- 1...Sh2
- 2.Qxe3#
- 1...Sg3
- 2.Qxe3#
- 1...e2
- 2.Sf2#
- 1...a4
- 2.Qxb4#
- 1...f4
- 1.Bc6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(d);N_GUARD,P_PINP(C)::QAR2(E)
- R(d);N_GUARD::QAR2(E)
- R(d);OGATEB::R(B),XR(d)
- R(d);N_GUARD::QAR2(E),XR(d)
- R(d);SBLOCK::QAR(E)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::QAR1(E),XP(c)
- P(c);N_GUARD::S(A)
- P(f);N_GUARD::QAR(E),XR(d)
- Tries
- Try
- B(G);
- Vars
- S(b);N_GUARD,XB(G)::QAR1(E),XP(c)
- S(b);N_GUARD::QAR1(E),XP(c)
- R(d);N_GUARD,P_PINP(C)::QAR2(E)
- R(d);N_GUARD::QAR2(E)
- R(d);SBLOCK::QAR(E)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(c);N_GUARD::S(A)
- P(f);N_GUARD::QAR(E),XR(d)
- Refutation
- P(g);
- Try
- B(G);
- Vars
- S(b);N_GUARD,XB(G)::QAR1(E),XP(c)
- R(d);N_GUARD,P_PINP(C)::QAR2(E)
- R(d);N_GUARD::QAR2(E)
- R(d);SBLOCK::QAR(E)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::QAR1(E),XP(c)
- P(c);N_GUARD::S(A)
- P(f);N_GUARD::QAR(E),XR(d)
- Refutation
- P(g);
- Try
- B(H);
- Vars
- R(d);N_GUARD,XB(H)::QAR2(E)
- R(d);SBLOCK::QAR(E)
- R(d);N_GUARD,P_PINP(C)::QAR2(E)
- R(d);N_GUARD::QAR2(E)
- R(d);OGATEB::R(B),XR(d)
- R(d);N_GUARD::QAR2(E),XR(d)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::QAR1(E),XP(c)
- P(c);N_GUARD::S(A)
- P(f);N_GUARD::QAR(E),XR(d)
- Refutation
- P(g);
- Try
- R(B);
- Vars
- R(d);SBLOCK::QAR(E)
- R(d);N_GUARD,P_PINP(C)::QAR2(E)
- R(d);N_GUARD::QAR2(E)
- R(d);OGATEB::R(B),XR(d)
- R(d);N_GUARD::QAR2(E),XR(d)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::QAR1(E),XP(c)
- P(c);N_GUARD::S(A)
- P(f);N_GUARD::QAR(E),XR(d)
- Refutation
- P(g);
- Try
- R(B);
- Vars
- S(a);N_GUARD,XR(B)::S(A)
- R(d);SBLOCK::QAR(E)
- R(d);N_GUARD,P_PINP(C)::QAR2(E)
- R(d);N_GUARD::QAR2(E)
- R(d);OGATEB::R(B),XR(d)
- R(d);N_GUARD::QAR2(E),XR(d)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- P(c);N_GUARD::S(A)
- P(f);N_GUARD::QAR(E),XR(d)
- Refutation
- P(g);
- Try
- R(B);P_PINR(d)
- Vars
- P(g);SBLOCK::B(H)+P(F)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::QAR1(E),XP(c)
- P(c);N_GUARD::S(A)
- Refutation
- R(d);N_SPINR(d),XR(B)
- Try
- R(B);XP(f)
- Threat
- QAR(E),XR(d)
- Vars
- R(d);SBLOCK::QAR(E)
- R(d);N_GUARD,P_PINP(C)::QAR2(E)
- R(d);N_GUARD::QAR2(E)
- R(d);OGATEB::R(B),XR(d)
- R(d);N_GUARD::QAR2(E),XR(d)
- S(a);N_GUARD::S(A)
- S(b);N_GUARD::QAR1(E),XP(c)
- Refutation
- P(g);
- Try
- Q(E);
- Threat
- DUALS(2)
- Vars
- R(d);::QAR1(E)
- Refutation
- K(e);P-FLIGHT
- Try
- P(F);CHECK
- Vars
- R(d);P_SPINR(d)::R(B)
- Refutation
- K(e);P-FLIGHT
- Try
- Actual
- B(H);
- Vars
- P(g);SBLOCK::B(H)+P(F)
- R(d);SBLOCK::QAR(E)
- R(d);N_GUARD,P_PINP(C)::QAR2(E)
- R(d);N_GUARD::QAR2(E)
- R(d);OGATEB::R(B),XR(d)
- R(d);N_GUARD::QAR2(E),XR(d)
- S(a);N_GUARD::S(A)
- S(a);N_GUARD::S(A),XS(a)
- S(b);N_GUARD::QAR1(E),XP(c)
- P(c);N_GUARD::S(A)
- P(f);N_GUARD::QAR(E),XR(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).