MESON Chess Problem Database
Problem Display
PID: 177968 (2Q5/6p1/prbp4/pp6/P3Rp2/BNk1pR2/8/N4B1K w - - 0 1)
Fokin, Yuri Georgievich
Sahs (Latvia), 1987
#2
9 + 10
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rb7
- 2.Qxc6#
- 1...Rb8
- 2.Qxc6#
- 1...bxa4
- 2.Rc4#
- 1...b4
- 2.Rc4#
- 1...g5
- 2.Qh8#
- 1...g6
- 2.Qh8#
- 1...Rb7
- Tries
- 1.Kg1?
- 1...bxa4
- 2.Rc4#
- 1...Rb7
- 2.Qxc6#
- 1...Rb8
- 2.Qxc6#
- 1...b4
- 2.Rc4#
- 1...g5
- 2.Qh8#
- 1...g6
- 2.Qh8#
- 1...d5!
- 1...bxa4
- 1.Kg2?
- 1...bxa4
- 2.Rc4#
- 1...Rb7
- 2.Qxc6#
- 1...Rb8
- 2.Qxc6#
- 1...b4
- 2.Rc4#
- 1...g5
- 2.Qh8#
- 1...g6
- 2.Qh8#
- 1...d5!
- 1...bxa4
- 1.Kh2?
- 1...bxa4
- 2.Rc4#
- 1...Rb7
- 2.Qxc6#
- 1...Rb8
- 2.Qxc6#
- 1...b4
- 2.Rc4#
- 1...g5
- 2.Qh8#
- 1...g6
- 2.Qh8#
- 1...d5!
- 1...bxa4
- 1.Be2?
- 1...bxa4
- 2.Rc4#
- 1...Rb7
- 2.Qxc6#
- 1...Rb8
- 2.Qxc6#
- 1...b4
- 2.Rc4#
- 1...g5
- 2.Qh8#
- 1...g6
- 2.Qh8#
- 1...d5!
- 1...bxa4
- 1.Bc1?
- 1...bxa4
- 2.Rc4#
- 1...Rb7
- 2.Qxc6#
- 1...Rb8
- 2.Qxc6#
- 1...b4
- 2.Rc4#
- 1...g5
- 2.Qh8#
- 1...g6
- 2.Qh8#
- 1...d5!
- 1...bxa4
- 1.Rf2?
- threat
- 2.Bb2#
- 2.Rc2#
- 1...e2
- 2.Rf3#
- 1...exf2!
- threat
- 1.Qc7?
- threat
- 2.Qxg7#
- 1...Rb7
- 2.Qxc6#
- 1...g5
- 2.Qg7#
- 1...g6
- 2.Qg7#
- 1...d5!
- threat
- 1.Qf8?
- threat
- 2.Qxg7#
- 1...d5
- 2.Qc5#
- 1...g5
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...g6
- 2.Qg7#
- 2.Qf6#
- 2.Qh8#
- 1...Rb7!
- threat
- 1.Kg1?
- Keys
- 1.Rexf4!
- 1...bxa4
- 2.Rc4#
- 1...d5
- 2.Rxe3#
- 1...Rb7
- 2.Qxc6#
- 1...Rb8
- 2.Qxc6#
- 1...b4
- 2.Rc4#
- 1...g5
- 2.Qh8#
- 1...g6
- 2.Qh8#
- 1...bxa4
- 1.Rexf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(g);N_GUARD::QAR(I),XB(h)
- P(e);N_GUARD,XP(G)::R1(H)
- P(e);N_GUARD::R1(H)
- P(j);OGATEB::QAB(I)
- Tries
- Try
- K(C);P-FLIGHT
- Vars
- P(e);N_GUARD,XP(G)::R1(H)
- R(g);N_GUARD::QAR(I),XB(h)
- P(e);N_GUARD::R1(H)
- P(j);OGATEB::QAB(I)
- Refutation
- P(i);
- Try
- K(C);S_FLIGHT
- Vars
- P(e);N_GUARD,XP(G)::R1(H)
- R(g);N_GUARD::QAR(I),XB(h)
- P(e);N_GUARD::R1(H)
- P(j);OGATEB::QAB(I)
- Refutation
- P(i);
- Try
- K(C);P-FLIGHT
- Vars
- P(e);N_GUARD,XP(G)::R1(H)
- R(g);N_GUARD::QAR(I),XB(h)
- P(e);N_GUARD::R1(H)
- P(j);OGATEB::QAB(I)
- Refutation
- P(i);
- Try
- B(B);
- Vars
- P(e);N_GUARD,XP(G)::R1(H)
- R(g);N_GUARD::QAR(I),XB(h)
- P(e);N_GUARD::R1(H)
- P(j);OGATEB::QAB(I)
- Refutation
- P(i);
- Try
- B(D);
- Vars
- P(e);N_GUARD,XP(G)::R1(H)
- R(g);N_GUARD::QAR(I),XB(h)
- P(e);N_GUARD::R1(H)
- P(j);OGATEB::QAB(I)
- Refutation
- P(i);
- Try
- R(F);N_PINP(b),P_SPINR(H)
- Threat
- DUALS(2)
- Vars
- P(b);OGATEB::R(F)
- Refutation
- P(b);XR(F)
- Try
- Q(I);
- Threat
- QAB(I),XP(j)
- Vars
- R(g);N_GUARD::QAR(I),XB(h)
- P(j);::QAB(I)
- Refutation
- P(i);
- Try
- Q(I);N_PINB(h)
- Threat
- QAB(I),XP(j)
- Vars
- P(i);OGATE::QAR2(I)
- Refutation
- R(g);
- Try
- Actual
- R(H);P_SPINR(F),XP(c)
- Vars
- P(e);N_GUARD,XP(G)::R1(H)
- P(i);N_PINR(F)::R(F),XP(b)
- R(g);N_GUARD::QAR(I),XB(h)
- P(e);N_GUARD::R1(H)
- P(j);OGATEB::QAB(I)
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).