MESON Chess Problem Database
Problem Display
PID: 181254 (2r1B3/p6b/K1pP4/R1NpB3/1pk1n2R/2n3r1/2Qp4/b1Nq4 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
Comm., Het Belgisch Schaakbord (L'Echiquier Belge), 1991-1992
#2
9 + 13
| 5110 | Bekroonde Problemen | 2002 |
SOLUTION
- SOUND
- Sets
- 1...Qe2
- 2.Qb3#
- 1...Qf3
- 2.Qb3#
- 1...Qg4
- 2.Qb3#
- 1...Qh5
- 2.Qb3#
- 1...Qxc1
- 2.Qb3#
- 1...Qe1
- 2.Qb3#
- 1...Qf1
- 2.Qb3#
- 1...Qg1
- 2.Qb3#
- 1...Qh1
- 2.Qb3#
- 1...Rg1
- 2.Qd3#
- 1...Rg2
- 2.Qd3#
- 1...Rd3
- 2.Qxd3#
- 1...Rg4
- 2.Qd3#
- 1...Rg5
- 2.Qd3#
- 1...Rg6
- 2.Qd3#
- 1...Rg7
- 2.Qd3#
- 1...Rg8
- 2.Qd3#
- 1...d4
- 2.Bf7#
- 1...Qe2
- Tries
- 1.S5b3?
- threat
- 2.Rc5#
- 1...Qg1
- 2.Sxd2#
- 1...Rg4
- 2.Qd3#
- 1...d4
- 2.Bf7#
- 1...c5
- 2.Bb5#
- 1...Qg4!
- threat
- 1.S5d3?
- threat
- 2.Rc5#
- 1...Rxd3
- 2.Qxd3#
- 1...Qg4
- 2.Qb3#
- 1...Qg1
- 2.Qb3#
- 1...d4
- 2.Bf7#
- 1...c5
- 2.Bb5#
- 1...Rg4!
- threat
- 1.Sa4?
- threat
- 2.Rc5#
- 1...Qg4
- 2.Qb3#
- 1...Qg1
- 2.Qb3#
- 1...Rg4
- 2.Qd3#
- 1...d4
- 2.Bf7#
- 1...c5
- 2.Bb5#
- 1...b3!
- threat
- 1.Sxe4?
- threat
- 2.Sxd2#
- 2.Rc5#
- 1...dxc1Q
- 2.Sd2#
- 2.Rc5#
- 1...dxc1S
- 2.Sd2#
- 2.Rc5#
- 1...dxc1B
- 2.Sd2#
- 2.Rc5#
- 1...dxc1R
- 2.Sd2#
- 2.Rc5#
- 1...dxe4
- 2.Bf7#
- 1...b3
- 2.Sxd2#
- 2.Ra4#
- 1...Qg1
- 2.Sxd2#
- 2.Qb3#
- 1...Rg4
- 2.Rc5#
- 2.Qd3#
- 1...d4
- 2.Bf7#
- 2.Rc5#
- 1...c5
- 2.Sxd2#
- 2.Bb5#
- 1...Bxe4!
- threat
- 1.Se6?
- threat
- 2.Rc5#
- 1...b3
- 2.Ra4#
- 1...Qg4
- 2.Qb3#
- 1...Qg1
- 2.Qb3#
- 1...Rg4
- 2.Qd3#
- 1...c5
- 2.Bb5#
- 1...d4!
- threat
- 1.Sd7?
- threat
- 2.Rc5#
- 1...b3
- 2.Ra4#
- 1...Qg4
- 2.Qb3#
- 1...Qg1
- 2.Qb3#
- 1...Rg4
- 2.Qd3#
- 1...d4
- 2.Bf7#
- 1...c5!
- threat
- 1.Rxe4+?
- 1...dxe4
- 2.Bf7#
- 1...d4
- 2.Bf7#
- 2.Rxd4#
- 1...Bxe4!
- 1...dxe4
- 1.S5b3?
- Keys
- 1.Sb7!
- threat
- 2.Rc5#
- 1...b3
- 2.Ra4#
- 1...Qg4
- 2.Qb3#
- 1...Qg1
- 2.Qb3#
- 1...Rg4
- 2.Qd3#
- 1...d4
- 2.Bf7#
- 1...c5
- 2.Bb5#
- threat
- 1.Sb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 14
- Sets
- Q(b);N_GUARD::QAB1(B)
- Q(b);N_GUARD,XS(A)::QAB1(B)
- R(e);N_GUARD::QAB1(B)
- R(e);N_GUARD::QAB1(B),XR(e)
- P(i);OGATEB::B(I)
- Tries
- Try
- S(E);
- Threat
- R1(D)
- Vars
- Q(b);N_GUARD::S(E),XP(c)
- R(e);N_GUARD::QAB1(B)
- P(i);OGATEB::B(I)
- P(j);OGATE::B(I)
- Refutation
- Q(b);
- Try
- S(E);
- Threat
- R1(D)
- Vars
- R(e);OGATE,XS(E)::QAB1(B),XR(e)
- Q(b);N_GUARD::QAB1(B)
- P(i);OGATEB::B(I)
- P(j);OGATE::B(I)
- Refutation
- R(e);
- Try
- S(E);
- Threat
- R1(D)
- Vars
- Q(b);N_GUARD::QAB1(B)
- R(e);N_GUARD::QAB1(B)
- P(i);OGATEB::B(I)
- P(j);OGATE::B(I)
- Refutation
- P(f);
- Try
- S(E);XS(h)
- Threat
- DUALS(2)
- Vars
- P(i);OGATEB,P_SPINP(i),XS(E)::B(I)
- Refutation
- B(l);P_SPINB(l),XS(E)
- Try
- S(E);
- Threat
- R1(D)
- Vars
- P(f);OGATEB::R(D)
- Q(b);N_GUARD::QAB1(B)
- R(e);N_GUARD::QAB1(B)
- P(j);OGATE::B(I)
- Refutation
- P(i);
- Try
- S(E);
- Threat
- R1(D)
- Vars
- P(f);OGATEB::R(D)
- Q(b);N_GUARD::QAB1(B)
- R(e);N_GUARD::QAB1(B)
- P(i);OGATEB::B(I)
- Refutation
- P(j);
- Try
- R(C);CHECK,XS(h)
- Vars
- P(i);S_CUTB(l),XR(C)::B(I)
- Refutation
- B(l);XR(C)
- Try
- Actual
- S(E);
- Threat
- R1(D)
- Vars
- P(f);OGATEB::R(D)
- Q(b);N_GUARD::QAB1(B)
- R(e);N_GUARD::QAB1(B)
- P(i);OGATEB::B(I)
- P(j);OGATE::B(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).