MESON Chess Problem Database
Problem Display
PID: 242253 (3BK3/N7/p4p1R/4p2R/kp6/p7/QP3p2/n4B2 w - - 0 1)
Kisis, Imants J
Schach, 1979
#2
8 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.b3#
- 1...b3
- 2.Qxa3#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...Sc2
- Tries
- 1.Kd7?
- 1...b3
- 2.Qxa3#
- 1...Sc2
- 2.b3#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...Sb3!
- 1...b3
- 1.Ke7?
- 1...b3
- 2.Qxa3#
- 1...Sc2
- 2.b3#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...Sb3!
- 1...b3
- 1.Kf7?
- 1...b3
- 2.Qxa3#
- 1...Sc2
- 2.b3#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...Sb3!
- 1...b3
- 1.Kf8?
- 1...b3
- 2.Qxa3#
- 1...Sc2
- 2.b3#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...Sb3!
- 1...b3
- 1.Sc8?
- 1...b3
- 2.Qxa3#
- 1...Sc2
- 2.b3#
- 1...e4
- 2.Sb6#
- 2.Ra5#
- 1...a5
- 2.Sb6#
- 1...f5
- 2.Rxa6#
- 1...Sb3!
- 1...b3
- 1.Bc7?
- 1...b3
- 2.Qxa3#
- 1...Sc2
- 2.b3#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...Sb3!
- 1...b3
- 1.Rh3?
- 1...b3
- 2.Qxa3#
- 1...Sb3
- 2.Qxb3#
- 1...Sc2
- 2.Qb3#
- 2.b3#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...e4!
- 1...b3
- 1.Rh4?
- threat
- 2.Qxa3#
- 1...Sc2
- 2.b3#
- 1...e4!
- threat
- 1.Rxe5?
- threat
- 2.Ra5#
- 1...fxe5
- 2.Rxa6#
- 1...b3
- 2.Re4#
- 2.Rh4#
- 2.Qxa3#
- 1...a5
- 2.Bb5#
- 2.Rxa5#
- 1...Sb3!
- threat
- 1.Rf5?
- 1...b3
- 2.Qxa3#
- 1...Sc2
- 2.b3#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...Sb3!
- 1...b3
- 1.Rg5?
- 1...fxg5
- 2.Rxa6#
- 1...b3
- 2.Qxa3#
- 1...Sc2
- 2.b3#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...Sb3!
- 1...fxg5
- 1.Rxf6?
- threat
- 2.Rxa6#
- 1...b3
- 2.Qxa3#
- 1...a5
- 2.Bb5#
- 1...Sb3!
- threat
- 1.Rg6?
- 1...b3
- 2.Qxa3#
- 1...Sc2
- 2.b3#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...Sb3!
- 1...b3
- 1.Qc4?
- 1...axb2
- 2.Qa2#
- 1...Sb3
- 2.Qc6#
- 1...Sc2
- 2.b3#
- 1...a2
- 2.Qxa2#
- 1...e4
- 2.Ra5#
- 1...f5
- 2.Rxa6#
- 1...a5!
- 1...axb2
- 1.Qd5?
- 1...axb2
- 2.Qa2#
- 1...b3
- 2.Qc4#
- 2.Qe4#
- 2.Qa5#
- 1...Sb3
- 2.Qc6#
- 2.Qd7#
- 1...Sc2
- 2.b3#
- 1...a2
- 2.Qxa2#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...e4!
- 1...axb2
- 1.Qe6?
- 1...axb2
- 2.Qa2#
- 1...b3
- 2.Qc4#
- 1...Sb3
- 2.Qd7#
- 2.Qc6#
- 1...Sc2
- 2.b3#
- 1...a2
- 2.Qxa2#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...f5!
- 1...axb2
- 1.Qg8?
- 1...axb2
- 2.Qa2#
- 1...b3
- 2.Qc4#
- 1...Sc2
- 2.b3#
- 1...a2
- 2.Qxa2#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...Sb3!
- 1...axb2
- 1.Kd7?
- Keys
- 1.Qf7!
- 1...axb2
- 2.Qa2#
- 1...b3
- 2.Qc4#
- 1...Sb3
- 2.Qd7#
- 1...Sc2
- 2.b3#
- 1...a2
- 2.Qxa2#
- 1...e4
- 2.Ra5#
- 1...a5
- 2.Bb5#
- 1...f5
- 2.Rxa6#
- 1...axb2
- 1.Qf7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::P(C)
- P(e);N_GUARD::QAR1(B),XP(c)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
- Tries
- Try
- K(H);S_FLIGHT
- Vars
- P(e);N_GUARD::QAR1(B),XP(c)
- S(a);N_GUARD::P(C)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
- Refutation
- S(a);
- Try
- K(H);P-FLIGHT
- Vars
- P(e);N_GUARD::QAR1(B),XP(c)
- S(a);N_GUARD::P(C)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
- Refutation
- S(a);
- Try
- K(H);S_FLIGHT
- Vars
- P(e);N_GUARD::QAR1(B),XP(c)
- S(a);N_GUARD::P(C)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
- Refutation
- S(a);
- Try
- K(H);P-FLIGHT
- Vars
- P(e);N_GUARD::QAR1(B),XP(c)
- S(a);N_GUARD::P(C)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
- Refutation
- S(a);
- Try
- S(F);
- Vars
- P(e);N_GUARD::QAR1(B),XP(c)
- S(a);N_GUARD::P(C)
- P(g);SBLOCK::S(F)
- P(h);OGATE::R(E),XP(g)
- Refutation
- S(a);
- Try
- B(G);
- Vars
- P(e);N_GUARD::QAR1(B),XP(c)
- S(a);N_GUARD::P(C)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- P(e);N_GUARD::QAR1(B),XP(c)
- S(a);N_GUARD::QAB1(B),XS(a)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
- Refutation
- P(f);
- Try
- R(D);
- Threat
- QAR1(B),XP(c)
- Vars
- S(a);N_GUARD::P(C)
- Refutation
- P(f);
- Try
- R(D);XP(f)
- Threat
- R1(D)
- Vars
- P(h);OGATE,XR(D)::R(E),XP(g)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- P(e);N_GUARD::QAR1(B),XP(c)
- S(a);N_GUARD::P(C)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- P(h);OGATE,XR(D)::R(E),XP(g)
- P(e);N_GUARD::QAR1(B),XP(c)
- S(a);N_GUARD::P(C)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
- Refutation
- S(a);
- Try
- R(E);XP(h)
- Threat
- R(E),XP(g)
- Vars
- P(e);N_GUARD::QAR1(B),XP(c)
- P(g);N_GUARD::B(A)
- Refutation
- S(a);
- Try
- R(E);
- Vars
- P(e);N_GUARD::QAR1(B),XP(c)
- S(a);N_GUARD::P(C)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
- Refutation
- S(a);
- Try
- Q(B);N_PINP(c),P_PINP(e)
- Vars
- P(c);OGATEB,XP(C)::QAR2(B)
- S(a);SBLOCK::QAB(B)
- S(a);N_GUARD::P(C)
- P(c);OGATEB::QAR2(B),XP(c)
- P(f);OGATE::R1(D)
- P(h);OGATE::R(E),XP(g)
- Refutation
- P(g);
- Try
- Q(B);N_PINP(c)
- Vars
- P(c);OGATEB,XP(C)::QAR2(B)
- S(a);N_GUARD::P(C)
- P(c);OGATEB::QAR2(B),XP(c)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
- Refutation
- P(f);
- Try
- Q(B);N_PINP(c)
- Vars
- P(c);OGATEB,XP(C)::QAR2(B)
- P(e);OGATEB::QAR2(B)
- S(a);N_GUARD::P(C)
- P(c);OGATEB::QAR2(B),XP(c)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- Refutation
- P(h);
- Try
- Q(B);N_PINP(c)
- Vars
- P(c);OGATEB,XP(C)::QAR2(B)
- P(e);OGATEB::QAR2(B)
- S(a);N_GUARD::P(C)
- P(c);OGATEB::QAR2(B),XP(c)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
- Refutation
- S(a);
- Try
- Actual
- Q(B);N_PINP(c)
- Vars
- P(c);OGATEB,XP(C)::QAR2(B)
- P(e);OGATEB::QAR2(B)
- S(a);SBLOCK::QAB(B)
- S(a);N_GUARD::P(C)
- P(c);OGATEB::QAR2(B),XP(c)
- P(f);OGATE::R1(D)
- P(g);N_GUARD::B(A)
- P(h);OGATE::R(E),XP(g)
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).