MESON Chess Problem Database
Problem Display
PID: 172101 (5Q2/1P6/3KP1pp/4N3/RnBNkB2/rp2P1pr/b4p1b/5nq1 w - - 0 1)
Apro, Laszlo
Mat, 1977
#2
10 + 13
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Bd3#
- 2.Bd5#
- 1...Sd3
- 2.Bxd3#
- 2.Bd5#
- 1...Sd5
- 2.Bd3#
- 2.Bxd5#
- 1...Sa6
- 2.Bd3#
- 2.Bd5#
- 1...Sc6
- 2.Bd3#
- 2.Bd5#
- 1...g5
- 2.Qf5#
- 1...Sc2
- Tries
- 1.Se2?
- threat
- 2.Sc3#
- 2.Bd3#
- 2.Bd5#
- 1...Rxa4
- 2.Sc3#
- 1...Sxe3
- 2.Bd3#
- 1...Bb1
- 2.Sc3#
- 2.Bd5#
- 1...Sd3
- 2.Sc3#
- 2.Bxd3#
- 2.Bd5#
- 1...Sd5
- 2.Bd3#
- 2.Bxd5#
- 1...b2!
- threat
- 1.Sb5?
- threat
- 2.Sc3#
- 2.Bd3#
- 2.Bd5#
- 1...Rxa4
- 2.Sc3#
- 1...Sxe3
- 2.Bd3#
- 1...Bb1
- 2.Sc3#
- 2.Bd5#
- 1...Sd3
- 2.Sc3#
- 2.Bxd3#
- 2.Bd5#
- 1...Sd5
- 2.Bd3#
- 2.Bxd5#
- 1...b2!
- threat
- 1.Sd7?
- threat
- 2.Sc5#
- 2.Sf6#
- 1...Rh5
- 2.Sf6#
- 1...Sd3
- 2.Sf6#
- 2.Bd5#
- 1...Sd5
- 2.Sc5#
- 1...Sa6
- 2.Sf6#
- 1...Sxe3!
- threat
- 1.Bxg3?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Kxe3
- 2.Qf4#
- 1...Rxg3
- 2.Qf4#
- 1...Bxg3
- 2.Qf3#
- 1...Sxe3
- 2.Qf4#
- 1...Qh1
- 2.Qf4#
- 1...Qg2
- 2.Qf4#
- 1...Rh4
- 2.Qf3#
- 1...Sd2
- 2.Qf4#
- 1...Sd3
- 2.Qf3#
- 1...Sd5
- 2.Qf3#
- 1...g5
- 2.Qf3#
- 1...Qxg3!
- threat
- 1.Bg5?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Sxe3
- 2.Qf4#
- 1...hxg5
- 2.Qf3#
- 1...Qh1
- 2.Qf4#
- 1...Qg2
- 2.Qf4#
- 1...Rh4
- 2.Qf3#
- 1...Sd2
- 2.Qf4#
- 1...Sd3
- 2.Bxd3#
- 2.Bd5#
- 2.Qf3#
- 1...Sd5
- 2.Bd3#
- 2.Bxd5#
- 2.Qf3#
- 1...g2!
- threat
- 1.Bxh6?
- threat
- 2.Qf3#
- 2.Qf4#
- 1...Sxe3
- 2.Qf4#
- 1...g5
- 2.Qf3#
- 1...Qh1
- 2.Qf4#
- 1...Qg2
- 2.Qf4#
- 1...Rh4
- 2.Qf3#
- 1...Sd2
- 2.Qf4#
- 1...Sd3
- 2.Bxd3#
- 2.Bd5#
- 2.Qf3#
- 1...Sd5
- 2.Bd3#
- 2.Bxd5#
- 2.Qf3#
- 1...g2!
- threat
- 1.Se2?
- Keys
- 1.Sxb3!
- threat
- 2.Sc5#
- 2.Bd3#
- 2.Bd5#
- 1...Rxb3
- 2.Bd5#
- 1...Rxa4
- 2.Sc5#
- 1...Bxb3
- 2.Bd3#
- 1...Sxe3
- 2.Bd3#
- 1...Bb1
- 2.Sc5#
- 2.Bd5#
- 1...Sd3
- 2.Bxd3#
- 2.Bd5#
- 1...Sd5
- 2.Sc5#
- 2.Bd3#
- 2.Bxd5#
- 1...Sa6
- 2.Bd3#
- 2.Bd5#
- threat
- 1.Sxb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- P(l);N_GUARD::QAB1(J)
- Tries
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- R(f);XR(B)::S(D)
- S(a);XP(A)::B(C)
- Refutation
- P(g);
- Try
- S(D);
- Threat
- DUALS(3)
- Vars
- R(f);XR(B)::S(D)
- S(a);XP(A)::B(C)
- Refutation
- P(g);
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(i);::S(F)
- S(j);::S(F)
- Refutation
- S(a);XP(A)
- Try
- B(E);XP(h)
- Threat
- DUALS(2)
- Vars
- K(k);P-FLIGHT,XP(A)::QAB1(J)
- R(i);XB(E)::QAR1(J)
- B(e);P_PINS(F),XB(E)::QAB1(J)
- S(a);XP(A)::QAR1(J)
- Q(b);::QAR1(J)
- R(i);::QAB1(J)
- S(a);::QAR1(J)
- S(j);::QAB1(J)
- P(l);::QAB1(J)
- Refutation
- Q(b);P_PINS(F),XB(E)
- Try
- B(E);
- Threat
- DUALS(2)
- Vars
- S(a);XP(A)::QAR1(J)
- P(m);XB(E)::QAB1(J)
- Q(b);::QAR1(J)
- R(i);::QAB1(J)
- S(a);::QAR1(J)
- Refutation
- P(h);P_PINS(F)
- Try
- B(E);XP(m)
- Threat
- DUALS(2)
- Vars
- S(a);XP(A)::QAR1(J)
- P(l);::QAB1(J)
- Q(b);::QAR1(J)
- R(i);::QAB1(J)
- S(a);::QAR1(J)
- Refutation
- P(h);P_PINS(F)
- Try
- Actual
- S(D);XP(g)
- Threat
- DUALS(3)
- Vars
- R(f);XS(D)::B(C)
- R(f);XR(B)::S(D)
- B(c);XS(D)::B(C)
- S(a);XP(A)::B(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).