MESON Chess Problem Database
Problem Display
PID: 52719 (6bK/B3p3/5p2/3n4/PNk5/nRNp4/Bp5Q/4b3 w - - 0 1)
Slesarenko, Anatoly Vasilevich
4th Prize, Zadachi i Etyudi, 2001
#2
8 + 9
| 56 | The Problemist | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Bxc3
- 2.Rxb2#
- 1...Sxc3
- 2.Qc7#
- 1...Se3
- 2.Qf4#
- 2.Qc7#
- 1...Sxb4
- 2.Qf4#
- 1...Sf4
- 2.Qxf4#
- 1...Sc7
- 2.Qf4#
- 2.Qxc7#
- 1...d2
- 2.Qe2#
- 1...Bxc3
- Tries
- 1.Sd1?
- threat
- 2.Sxb2#
- 2.Rxb2#
- 1...Sxb4
- 2.Se3#
- 2.Rc3#
- 1...b1Q
- 2.Rxb1#
- 1...b1S
- 2.Sb2#
- 2.Rxb1#
- 2.Rb2#
- 1...b1B
- 2.Sb2#
- 2.Rxb1#
- 1...b1R
- 2.Rxb1#
- 2.Rb2#
- 1...Bc3
- 2.Rxb2#
- 1...Sc3
- 2.Sxb2#
- 2.Se3#
- 2.Qc7#
- 1...Sb6!
- threat
- 1.Se4?
- threat
- 2.Rxb2#
- 1...Sxb4
- 2.Rc3#
- 1...b1Q
- 2.Rxb1#
- 1...b1S
- 2.Rxb1#
- 2.Rb2#
- 1...b1B
- 2.Rxb1#
- 1...b1R
- 2.Rxb1#
- 2.Rb2#
- 1...Sc3
- 2.Qc7#
- 1...Sb6!
- threat
- 1.Sb5?
- threat
- 2.Sxa3#
- 2.Rxb2#
- 1...Bxb4
- 2.Rxb2#
- 2.Rxa3#
- 2.Rc3#
- 1...Sxb4
- 2.Rc3#
- 1...Sb6
- 2.Qc7#
- 1...b1Q
- 2.Sxa3#
- 2.Rxb1#
- 1...b1S
- 2.Rxb1#
- 2.Rb2#
- 1...b1B
- 2.Sxa3#
- 2.Rxb1#
- 1...b1R
- 2.Sxa3#
- 2.Rxb1#
- 2.Rb2#
- 1...Sb1
- 2.Rxb2#
- 1...Sc2
- 2.Rxb2#
- 1...Sc3
- 2.Sxa3#
- 2.Qc7#
- 1...Sxb5!
- threat
- 1.Scxd5?
- threat
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rc3#
- 2.Rxd3#
- 2.Qf4#
- 2.Qc7#
- 1...Bxb4
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rc3#
- 2.Rxb4#
- 1...b1Q
- 2.Se3#
- 2.Rxb1#
- 2.Rc3#
- 2.Qf4#
- 2.Qc7#
- 1...b1S
- 2.Se3#
- 2.Rxb1#
- 2.Rb2#
- 2.Rxa3#
- 2.Rc3#
- 2.Rxd3#
- 2.Qf4#
- 2.Qc7#
- 1...b1B
- 2.Se3#
- 2.Rxb1#
- 2.Rc3#
- 2.Qf4#
- 2.Qc7#
- 1...b1R
- 2.Se3#
- 2.Rxb1#
- 2.Rb2#
- 2.Rc3#
- 2.Qf4#
- 2.Qc7#
- 1...Bd2
- 2.Rxb2#
- 2.Rxa3#
- 2.Rc3#
- 2.Rxd3#
- 2.Qc7#
- 1...Bf2
- 2.Rxb2#
- 2.Rxa3#
- 2.Rc3#
- 2.Rxd3#
- 1...Bc3
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rxc3#
- 2.Qc7#
- 1...Bg3
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rc3#
- 2.Rxd3#
- 1...Bh7
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rc3#
- 2.Rxd3#
- 2.Qc7#
- 1...Sb1
- 2.Se3#
- 2.Rxb2#
- 2.Ra3#
- 2.Rc3#
- 2.Rxd3#
- 2.Qf4#
- 2.Qc7#
- 1...Sc2
- 2.Rxb2#
- 2.Ra3#
- 2.Rc3#
- 2.Rxd3#
- 2.Qc7#
- 1...Sb5
- 2.Se3#
- 2.Rxb2#
- 2.Ra3#
- 2.Rc3#
- 2.Rxd3#
- 1...d2
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rc3#
- 2.Rd3#
- 2.Re3#
- 2.Rf3#
- 2.Rg3#
- 2.Rh3#
- 2.Qf4#
- 2.Qc7#
- 2.Qe2#
- 1...e5
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rc3#
- 2.Rxd3#
- 1...Bxd5!
- threat
- 1.Sc2?
- threat
- 2.Sxa3#
- 2.Rxa3#
- 1...Sxc3
- 2.Se3#
- 2.Rb4#
- 1...dxc2
- 2.Qe2#
- 1...Sb6
- 2.Qc7#
- 1...d2
- 2.Qe2#
- 1...b1Q
- 2.Sxa3#
- 1...b1S
- 2.Rxa3#
- 1...b1B
- 2.Sxa3#
- 1...b1R
- 2.Sxa3#
- 1...Sb1
- 2.Ra3#
- 1...Sb5
- 2.Ra3#
- 1...Sb4
- 2.Sxa3#
- 2.Se3#
- 2.Qf4#
- 1...Sxc2!
- threat
- 1.Sbxd5?
- threat
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb7#
- 2.Rb8#
- 2.Qf4#
- 2.Qc7#
- 1...Bxc3
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rxc3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb7#
- 2.Rb8#
- 1...d2
- 2.Qe2#
- 1...b1Q
- 2.Se3#
- 2.Rxb1#
- 2.Rb4#
- 2.Qf4#
- 2.Qc7#
- 1...b1S
- 2.Se3#
- 2.Rxb1#
- 2.Rb2#
- 2.Rxa3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb7#
- 2.Rb8#
- 2.Qf4#
- 2.Qc7#
- 1...b1B
- 2.Se3#
- 2.Rxb1#
- 2.Rb4#
- 2.Qf4#
- 2.Qc7#
- 1...b1R
- 2.Se3#
- 2.Rxb1#
- 2.Rb2#
- 2.Rb4#
- 2.Qf4#
- 2.Qc7#
- 1...Bd2
- 2.Rxb2#
- 2.Rxa3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb7#
- 2.Rb8#
- 2.Qc7#
- 1...Bf2
- 2.Rxb2#
- 2.Rxa3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb7#
- 2.Rb8#
- 1...Bg3
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb7#
- 2.Rb8#
- 1...Bh7
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb7#
- 2.Rb8#
- 2.Qc7#
- 1...Sb1
- 2.Se3#
- 2.Rxb2#
- 2.Ra3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb7#
- 2.Rb8#
- 2.Qf4#
- 2.Qc7#
- 1...Sc2
- 2.Rxb2#
- 2.Ra3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb7#
- 2.Rb8#
- 2.Qc7#
- 1...Sb5
- 2.Se3#
- 2.Rxb2#
- 2.Ra3#
- 2.Rb4#
- 2.Rxb5#
- 1...e5
- 2.Se3#
- 2.Rxb2#
- 2.Rxa3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb7#
- 2.Rb8#
- 1...Bxd5!
- threat
- 1.Sc6?
- threat
- 2.Sa5#
- 2.Rxa3#
- 1...Bxc3
- 2.Rxb2#
- 2.Rxa3#
- 2.Rb4#
- 2.Rb5#
- 2.Rb7#
- 2.Rb8#
- 1...Sxc3
- 2.Rb4#
- 1...d2
- 2.Qe2#
- 1...b1Q
- 2.Sa5#
- 1...b1B
- 2.Sa5#
- 1...b1R
- 2.Sa5#
- 1...Sb1
- 2.Sa5#
- 2.Ra3#
- 1...Sc2
- 2.Sa5#
- 2.Ra3#
- 1...Sb5
- 2.Sa5#
- 2.Ra3#
- 1...Sb4
- 2.Sa5#
- 2.Qf4#
- 1...Sb6!
- threat
- 1.Qe5?
- threat
- 2.Rxb2#
- 2.Qd4#
- 2.Qe4#
- 1...Bxc3
- 2.Rxb2#
- 1...Sxc3
- 2.Qd4#
- 2.Qc7#
- 2.Qc5#
- 1...Sxb4
- 2.Qd4#
- 2.Qf4#
- 2.Qe4#
- 2.Qc5#
- 1...b1Q
- 2.Rxb1#
- 2.Qd4#
- 2.Qe4#
- 1...b1S
- 2.Rxb1#
- 2.Rb2#
- 2.Qd4#
- 2.Qe4#
- 1...b1B
- 2.Rxb1#
- 2.Qd4#
- 2.Qe4#
- 1...b1R
- 2.Rxb1#
- 2.Rb2#
- 2.Qd4#
- 2.Qe4#
- 1...Bf2
- 2.Rxb2#
- 1...Bh7
- 2.Rxb2#
- 2.Qd4#
- 2.Qxd5#
- 1...Sc2
- 2.Rxb2#
- 1...Sb5
- 2.Rxb2#
- 1...Sb6
- 2.Rxb2#
- 1...f5
- 2.Rxb2#
- 2.Qd4#
- 1...fxe5!
- threat
- 1.Qd6?
- threat
- 2.Rxa3#
- 2.Qc5#
- 2.Qc6#
- 1...Sxc3
- 2.Qc5#
- 2.Qc7#
- 2.Qxd3#
- 2.Qd4#
- 2.Qc6#
- 1...Sxb4
- 2.Qxb4#
- 2.Qf4#
- 2.Qc5#
- 2.Qd4#
- 1...b1Q
- 2.Qc5#
- 2.Qc6#
- 1...b1B
- 2.Qc5#
- 2.Qc6#
- 1...b1R
- 2.Qc5#
- 2.Qc6#
- 1...Bf2
- 2.Rxa3#
- 1...Sb1
- 2.Ra3#
- 2.Qc5#
- 2.Qa6#
- 2.Qc6#
- 1...Sc2
- 2.Ra3#
- 2.Qc5#
- 2.Qa6#
- 2.Qc6#
- 1...Sb5
- 2.Ra3#
- 2.Qc5#
- 2.Qc6#
- 1...Sb6
- 2.Rxa3#
- 1...exd6!
- threat
- 1.Qxb2?
- threat
- 2.Rxa3#
- 1...Sxc3
- 2.Rxc3#
- 1...Sxb4
- 2.Rxb4#
- 1...Sb1
- 2.Ra3#
- 1...Sc2
- 2.Ra3#
- 1...Sb5
- 2.Ra3#
- 1...Sb6!
- threat
- 1.Qh4+?
- 1...Sf4
- 2.Qxf4#
- 1...Bxh4!
- 1...Sf4
- 1.Sd1?
- Keys
- 1.Se2!
- threat
- 2.Rxb2#
- 1...Sxb4
- 2.Rc3#
- 1...dxe2
- 2.Qxe2#
- 1...Sb6
- 2.Qc7#
- 1...b1Q
- 2.Rxb1#
- 1...b1S
- 2.Rxb1#
- 2.Rb2#
- 1...b1B
- 2.Rxb1#
- 1...b1R
- 2.Rxb1#
- 2.Rb2#
- 1...Sc3
- 2.Qc7#
- threat
- 1.Se2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 3
- Sets
- B(a);SBLOCK,XS(D)::B(A)+R(C),XP(b)
- S(f);N_GUARD,XS(D)::QAR(B)
- S(f);N_GUARD,XS(F)::QAR(B)
- S(f);N_GUARD::QAR(B),XS(f)
- P(d);OGATEB::QAB(B)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- P(b);OGATE::B(A)+R(C),XQ(b)
- B(a);::B(A)+R(C),XP(b)
- Refutation
- S(f);
- Try
- S(D);
- Threat
- B(A)+R(C),XP(b)
- Vars
- S(f);SBLOCK,XS(F)::B(A)+R(C),DCHECK
- P(b);OGATE::B(A)+R(C),XQ(b)
- P(b);OGATE::B(A)+R(C),XB(b)
- S(f);N_GUARD::QAR(B)
- Refutation
- S(f);
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(f);SBLOCK,XS(F)::B(A)+R(C),DCHECK
- S(f);N_GUARD::QAR(B)
- S(c);::B(A)+R(C),XP(b)
- Refutation
- S(c);XS(D)
- Try
- S(D);XS(f)
- Threat
- DUALS(7)
- Refutation
- B(i);XS(D)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- P(d);OGATEB,XS(F)::QAB(B)
- S(f);N_GUARD::QAR(B)
- P(d);OGATEB::QAB(B)
- P(b);::S(F),XS(c)
- P(b);::B(A)+R(C),XS(c)
- S(c);::B(A)+R(C)
- Refutation
- S(c);XS(F)
- Try
- S(F);XS(f)
- Threat
- DUALS(9)
- Vars
- P(d);OGATEB::QAB(B)
- Refutation
- B(i);XS(F)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- S(f);SBLOCK,XS(D)::B(A)+R(C),DCHECK
- P(d);OGATEB::QAB(B)
- P(b);::S(F)
- Refutation
- S(f);
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- B(a);XS(D)::B(A)+R(C),XP(b)
- B(a);::B(A)+R(C),XP(b)
- S(c);::B(A)+R(C),XP(b)
- S(f);::B(A)+R(C),XP(b)
- Refutation
- P(g);XQ(B)
- Try
- Q(B);
- Threat
- DUALS(3)
- Vars
- B(a);::B(A)+R(C),XS(c)
- S(f);::B(A)+R(C),XS(c)
- Refutation
- P(h);XQ(B)
- Try
- Q(B);XP(b)
- Threat
- B(A)+R(C),XS(c)
- Vars
- S(f);OGATE,XS(D)::B(A)+R(C),DCHECK,XS(f)
- S(f);OGATE,XS(F)::B(A)+R(C),DCHECK,XS(f)
- S(c);::B(A)+R(C)
- Refutation
- S(f);
- Try
- Q(B);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAR(B),XS(f)
- Refutation
- B(a);XQ(B)
- Try
- Actual
- S(D);
- Threat
- B(A)+R(C),XP(b)
- Vars
- S(f);SBLOCK,XS(F)::B(A)+R(C),DCHECK
- P(d);OGATE,XS(D)::QAB(B),XP(d)
- S(f);N_GUARD::QAR(B)
- P(b);OGATE::B(A)+R(C),XQ(b)
- P(b);OGATE::B(A)+R(C),XB(b)
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).