MESON Chess Problem Database
Problem Display
PID: 49944 (3B3N/3R1p2/3R1P2/1prpkB2/1Kp2pQN/2p5/2Pn1P2/8 w - - 0 1)
Ursegov, Yakov Petrovich
2nd Prize, 2. Makuc/Moder MT, 1970
#2
11 + 9
| 3335 | Cyclone | 2000 |
SOLUTION
- SOUND
- Sets
- 1...Rc6
- 2.Rxd5#
- 1...Rc7
- 2.Rxd5#
- 1...Rc8
- 2.Rxd5#
- 1...Sb1
- 2.Sf3#
- 1...Sf1
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Se4
- 2.Sf3#
- 1...f3
- 2.Sxf7#
- 1...d4
- 2.Sxf7#
- 1...Rc6
- Tries
- 1.Bh7?
- 1...Rc6
- 2.Rxd5#
- 1...Rc7
- 2.Rxd5#
- 1...Rc8
- 2.Rxd5#
- 1...Sb1
- 2.Sf3#
- 1...Sf1
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Se4
- 2.Sf3#
- 1...f3
- 2.Sxf7#
- 1...d4
- 2.Sxf7#
- 2.Qf5#
- 2.Qh5#
- 2.Qg5#
- 1...Kd4!
- 1...Rc6
- 1.Be7?
- 1...Rc6
- 2.Rxd5#
- 1...Rc7
- 2.Rxd5#
- 1...Rc8
- 2.Rxd5#
- 1...Sb1
- 2.Sf3#
- 1...Sf1
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Se4
- 2.Sf3#
- 1...f3
- 2.Sxf7#
- 1...d4
- 2.Sxf7#
- 1...Kd4!
- 1...Rc6
- 1.Qd1?
- 1...Kd4
- 2.Sf3#
- 1...Rc6
- 2.Rxd5#
- 1...Rc7
- 2.Rxd5#
- 1...Rc8
- 2.Rxd5#
- 1...Sb1
- 2.Sxf7#
- 1...Sf1
- 2.Sxf7#
- 1...Sb3
- 2.Sxf7#
- 1...Sf3
- 2.Sxf7#
- 1...Se4
- 2.Sxf7#
- 1...d4
- 2.Sxf7#
- 1...f3!
- 1...Kd4
- 1.Qh3?
- 1...Kd4
- 2.Qxc3#
- 1...Rc6
- 2.Rxd5#
- 1...Rc7
- 2.Rxd5#
- 1...Rc8
- 2.Rxd5#
- 1...Sb1
- 2.Sf3#
- 1...Sf1
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Se4
- 2.Sf3#
- 1...d4
- 2.Sxf7#
- 1...f3!
- 1...Kd4
- 1.Bh7?
- Keys
- 1.Bb6!
- 1...Kd4
- 2.Rxd5#
- 1...Rc6
- 2.Sxf7#
- 1...Rc7
- 2.Sxf7#
- 1...Rc8
- 2.Sxf7#
- 1...Sb1
- 2.Sf3#
- 1...Sf1
- 2.Sf3#
- 1...Sb3
- 2.Sf3#
- 1...Sf3
- 2.Sxf3#
- 1...Se4
- 2.Sf3#
- 1...f3
- 2.Sxf7#
- 1...d4
- 2.Sxf7#
- 1...Kd4
- 1.Bb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(f);N_GUARD::R1(G),XP(g)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- P(d);::S(K),XP(i)
- P(g);::S(K),XP(i)
- Tries
- Try
- B(F);
- Vars
- R(f);N_GUARD::R1(G),XP(g)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- P(d);::S(K),XP(i)
- Refutation
- K(h);P_SPINP(d),S_FLIGHT
- Try
- B(J);
- Vars
- R(f);N_GUARD::R1(G),XP(g)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- P(d);::S(K),XP(i)
- P(g);::S(K),XP(i)
- Refutation
- K(h);P_SPINP(d),S_FLIGHT
- Try
- Q(D);
- Vars
- K(h);P_SPINP(g),P_SPINS(a),S_FLIGHT::S(E)
- R(f);N_GUARD::R1(G),XP(g)
- S(a);::S(K),XP(i)
- P(g);::S(K),XP(i)
- Refutation
- P(d);
- Try
- Q(D);
- Vars
- K(h);P_SPINP(g),S_FLIGHT::QAB1(D),XP(b)
- R(f);N_GUARD::R1(G),XP(g)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- P(g);::S(K),XP(i)
- Refutation
- P(d);
- Try
- Actual
- B(J);
- Vars
- K(h);P_SPINP(d),P_SPINR(f),S_FLIGHT::R1(G),XP(g)
- R(f);::S(K),XP(i)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- P(d);::S(K),XP(i)
- P(g);::S(K),XP(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).