MESON Chess Problem Database
Problem Display
PID: 173817 (2N5/7b/2KpBq2/3p2rr/npk5/1p6/1B1Q3b/8 w - - 0 1)
Borovik, Boris V
Die Schwalbe, 1984
#2
5 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Qd4
- 2.Qxd4#
- 1...Qe7
- 2.Qd4#
- 1...Qd8
- 2.Qd4#
- 1...Qf1
- 2.Qd4#
- 1...Qf3
- 2.Qd4#
- 1...Qf5
- 2.Qd4#
- 1...Qxe6
- 2.Qd4#
- 1...Qg6
- 2.Qd4#
- 1...Qh6
- 2.Qd4#
- 1...Qf7
- 2.Qd4#
- 1...Qf8
- 2.Qd4#
- 1...Rg3
- 2.Sxd6#
- 1...Re5
- 2.Sxd6#
- 2.Qd4#
- 1...Rf5
- 2.Qe2#
- 1...Rg6
- 2.Qe2#
- 1...Bg1
- 2.Sxd6#
- 1...Be5
- 2.Bxd5#
- 2.Qxd5#
- 1...Bf5
- 2.Bxd5#
- 2.Qxd5#
- 1...Bg8
- 2.Qe2#
- 1...Sxb2
- 2.Sb6#
- 1...Sc3
- 2.Sb6#
- 1...Sc5
- 2.Sb6#
- 1...Sb6
- 2.Sxb6#
- 1...Qd4
- Tries
- 1.Be5?
- threat
- 2.Sxd6#
- 2.Bxd5#
- 2.Qd4#
- 2.Qxd5#
- 1...Qxe6
- 2.Qd4#
- 1...Rxe5
- 2.Sxd6#
- 1...Bxe5
- 2.Bxd5#
- 1...dxe5
- 2.Sd6#
- 1...b2
- 2.Bxd5#
- 2.Qxd5#
- 1...Qe7
- 2.Bxd5#
- 2.Qd4#
- 2.Qxd5#
- 1...Qd8
- 2.Bxd5#
- 2.Qd4#
- 2.Qxd5#
- 1...Qf2
- 2.Sxd6#
- 2.Bxd5#
- 2.Qxd5#
- 1...Qf3
- 2.Sxd6#
- 2.Qd4#
- 1...Qf4
- 2.Sxd6#
- 2.Bxd5#
- 2.Qxd5#
- 1...Qf7
- 2.Sxd6#
- 2.Qd4#
- 2.Qxd5#
- 1...Qf8
- 2.Bxd5#
- 2.Qd4#
- 2.Qxd5#
- 1...Rg4
- 2.Sxd6#
- 2.Bxd5#
- 2.Qxd5#
- 1...Rh4
- 2.Sxd6#
- 2.Bxd5#
- 2.Qxd5#
- 1...Bg1
- 2.Sxd6#
- 2.Bxd5#
- 2.Qxd5#
- 1...Bd3
- 2.Sxd6#
- 2.Bxd5#
- 1...Be4
- 2.Sxd6#
- 2.Qd4#
- 1...Bg8
- 2.Sxd6#
- 2.Qe2#
- 2.Qd4#
- 2.Qxd5#
- 1...Sc3
- 2.Sb6#
- 2.Sxd6#
- 2.Qd4#
- 1...Sb6
- 2.Sxb6#
- 2.Sxd6#
- 2.Qd4#
- 1...Qxe5!
- threat
- 1.Be5?
- Keys
- 1.Bf5!
- threat
- 2.Qe2#
- 2.Qd3#
- 2.Qxd5#
- 1...Qxb2
- 2.Qd3#
- 1...Qxf5
- 2.Qd4#
- 1...Rxf5
- 2.Qe2#
- 1...Bxf5
- 2.Qxd5#
- 1...Sxb2
- 2.Sb6#
- 1...Qc3
- 2.Qxd5#
- 1...Qd4
- 2.Qxd4#
- 1...Qe5
- 2.Qd3#
- 1...Qe7
- 2.Qd3#
- 2.Qd4#
- 2.Qxd5#
- 1...Qe6
- 2.Qd3#
- 2.Qd4#
- 1...Qf7
- 2.Qe2#
- 2.Qd3#
- 2.Qd4#
- 1...Rg2
- 2.Qd3#
- 2.Qxd5#
- 1...Rg3
- 2.Qxd5#
- 1...Rh3
- 2.Qxd5#
- 1...Bg8
- 2.Bd3#
- 2.Qe2#
- 2.Qd3#
- 1...Sc3
- 2.Sb6#
- 2.Qd3#
- 1...Sc5
- 2.Sb6#
- 2.Qxd5#
- 1...Sb6
- 2.Sxb6#
- 2.Qe2#
- 2.Qd3#
- 1...d4
- 2.Qd3#
- threat
- 1.Bf5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 15
- Sets
- Q(j);N_GUARD::QAR1(B),XQ(j)
- Q(j);N_GUARD::QAR1(B)
- Q(j);N_GUARD,N_SPINP(f),XB(D)::QAR1(B)
- R(g);S_CUTB(a)::S(E),XP(i)
- R(g);S_CUTB(k)::QAB(B)
- B(a);N_GUARD::S(E),XP(i)
- B(k);N_GUARD::QAB(B)
- S(c);N_GUARD,XB(A)::S(E)
- S(c);N_GUARD::S(E)
- S(c);N_GUARD::S(E),XS(c)
- Tries
- Try
- B(A);
- Threat
- DUALS(4)
- Vars
- Q(j);N_SPINP(f),XB(D)::QAR1(B)
- R(g);XB(A)::S(E),XP(i)
- B(a);XB(A)::B(D),XP(f)
- P(i);P_PINB(D),XB(A)::S(E)
- Refutation
- Q(j);XB(A)
- Try
- Actual
- B(D);N_PINP(f)
- Threat
- DUALS(3)
- Vars
- Q(j);XB(A)::QAB1(B)
- Q(j);N_GUARD,XB(D)::QAR1(B)
- R(g);XB(D)::QAB(B)
- B(k);XB(D)::QAB1(B),XP(f)
- S(c);N_GUARD,XB(A)::S(E)
- Q(j);::QAB1(B),XP(f)
- Q(j);N_GUARD::QAR1(B),XQ(j)
- Q(j);::QAB1(B)
- R(g);::QAB1(B),XP(f)
- R(h);::QAB1(B),XP(f)
- P(f);::QAB1(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).