MESON Chess Problem Database
Problem Display
PID: 225697 (1BK2N2/1B6/2P3p1/r1Nk1nR1/1Q1b2nr/1P1b1Pp1/8/6q1 w - - 0 1)
Pituk, Alexander
Praca, 1993
#2
10 + 10
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bb1
- 2.Qc4#
- 1...Bc2
- 2.Qc4#
- 1...Bc4
- 2.Qxc4#
- 2.bxc4#
- 1...Be4
- 2.Qc4#
- 2.fxe4#
- 1...Bb1
- Tries
- 1.Sxd3?
- threat
- 2.Sf4#
- 2.Qd6#
- 2.Qc4#
- 2.c7#
- 1...Qe3
- 2.Qd6#
- 2.Qc4#
- 2.c7#
- 1...Qc1
- 2.Qd6#
- 1...Ra4
- 2.Sf4#
- 2.Qd6#
- 2.c7#
- 1...Rb5
- 2.Sf4#
- 2.Qd6#
- 2.Qc4#
- 1...Rc5
- 2.Sf4#
- 1...Ra6
- 2.Sf4#
- 2.Qd6#
- 2.Qc4#
- 1...Ra7
- 2.Sf4#
- 2.Qd6#
- 2.Qc4#
- 1...Be3
- 2.Qd6#
- 2.Qc4#
- 2.Qe4#
- 2.c7#
- 1...Bc5
- 2.Sf4#
- 2.Qc4#
- 2.Qe4#
- 1...Be5
- 2.Qc4#
- 2.Qe4#
- 2.c7#
- 1...Sf2
- 2.Qd6#
- 2.Qc4#
- 2.c7#
- 1...Sh2
- 2.Qd6#
- 2.Qc4#
- 2.c7#
- 1...Se3
- 2.Qd6#
- 2.c7#
- 1...Sf6
- 2.Qd6#
- 2.Qc4#
- 2.c7#
- 1...Sh6
- 2.Qd6#
- 2.Qc4#
- 2.c7#
- 1...Se5!
- threat
- 1.Sa4?
- threat
- 2.Qd6#
- 1...Rc5
- 2.Sb6#
- 1...Bc5
- 2.Sc3#
- 1...Be5
- 2.c7#
- 1...Se5!
- threat
- 1.Se4?
- threat
- 2.Qd6#
- 1...Se5
- 2.Sf6#
- 1...Bc5
- 2.Sc3#
- 1...Be5
- 2.c7#
- 1...Rc5!
- threat
- 1.Scd7?
- threat
- 2.Qd6#
- 2.c7#
- 1...Se5
- 2.Sf6#
- 1...Qc1
- 2.Qd6#
- 1...Rb5
- 2.Qd6#
- 1...Rc5
- 2.Sb6#
- 1...Ra6
- 2.Qd6#
- 1...Ra7
- 2.Qd6#
- 1...Bb5
- 2.Qd6#
- 1...Ba6
- 2.Qd6#
- 1...Be5
- 2.c7#
- 1...Bc5!
- threat
- 1.Sxd3?
- Keys
- 1.Sce6!
- threat
- 2.Sf4#
- 2.Qd6#
- 1...Se5
- 2.Sc7#
- 1...Qe3
- 2.Qd6#
- 1...Qc1
- 2.Qd6#
- 2.Qxd4#
- 1...Rc5
- 2.Sf4#
- 1...Be3
- 2.Qd6#
- 1...Bc5
- 2.Sf4#
- 1...Be5
- 2.c7#
- 1...Sf2
- 2.Qd6#
- 1...Sh2
- 2.Qd6#
- 1...Se3
- 2.Qd6#
- 1...Sf6
- 2.Qd6#
- 1...Sh6
- 2.Qd6#
- threat
- 1.Sce6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 11
- REMOVED MATES = 2
- Sets
- B(b);N_GUARD::QAB1(C)
- Tries
- Try
- S(D);XB(b)
- Threat
- DUALS(4)
- Vars
- Q(a);P_PINP(F)::QAR1(C)
- R(g);P_PINP(F)::S(D)
- Refutation
- S(e);N_SPINS(i)
- Try
- S(D);
- Threat
- QAR1(C)
- Vars
- R(g);P_PINP(F),S_CUTB(d)::S(D)
- B(d);N_GUARD::S(D)
- B(d);N_SPINS(i),SBLOCK::B(G)+P(F)
- Refutation
- S(e);N_SPINS(i)
- Try
- S(D);
- Threat
- QAR1(C)
- Vars
- S(e);N_GUARD,N_SPINS(i),S_CUTB(d)::S(D)
- B(d);N_GUARD::S(D)
- B(d);N_SPINS(i),SBLOCK::B(G)+P(F)
- Refutation
- R(g);P_PINP(F)
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- S(e);N_GUARD,N_SPINS(i),S_CUTB(d)::S(D)
- Q(a);P_PINP(F)::QAR1(C)
- R(g);::QAR1(C)
- R(g);P_PINP(F),S_CUTB(d)::S(D)
- B(b);::QAR1(C)
- B(b);P_PINB(G)::QAR1(C)
- B(d);N_SPINS(i)::B(G)+P(F)
- Refutation
- B(d);
- Try
- Actual
- S(D);
- Threat
- DUALS(2)
- Vars
- S(e);N_SPINS(i),SBLOCK::S(D)
- Q(a);::QAR1(C)
- R(g);P_PINP(F)::S(D)
- B(d);::QAR1(C)
- B(d);::S(D)
- B(d);N_SPINS(i),SBLOCK::B(G)+P(F)
- S(e);::QAR1(C)
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).