MESON Chess Problem Database
Problem Display
PID: 161866 (8/2pn4/3p1N2/8/QP1k1P2/4r3/1P2BB2/K2nb1q1 w - - 0 1)
Apro, Laszlo
Sachove umeni (Ceskoslovensky sach), 1961
#2
8 + 8
| 15148 | Sadier Collection | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Bxb4
- 2.Qxb4#
- 1...Bxb4
- Tries
- 1.Qc2?
- threat
- 2.Qd3#
- 2.Qe4#
- 2.Qc4#
- 1...Qxf2
- 2.Qc4#
- 1...Bxf2
- 2.Qc4#
- 1...Bxb4
- 2.Qc4#
- 1...Sxf2
- 2.Qc4#
- 1...Sxf6
- 2.Qd3#
- 2.Qc4#
- 1...Qh1
- 2.Qd3#
- 2.Qc4#
- 1...Qg2
- 2.Qd3#
- 2.Qc4#
- 1...Qg6
- 2.Qc4#
- 1...Qg8
- 2.Qd3#
- 2.Qe4#
- 1...Bc3
- 2.Qd3#
- 2.Qe4#
- 1...Sc3
- 2.Qd3#
- 1...Sc5
- 2.Qc4#
- 1...Se5
- 2.Qe4#
- 1...Sb6
- 2.Qd3#
- 2.Qe4#
- 1...d5
- 2.Qd3#
- 1...Sxb2!
- threat
- 1.Qb5?
- threat
- 2.Qd3#
- 2.Qc4#
- 2.Qd5#
- 1...Qxf2
- 2.Qc4#
- 2.Qd5#
- 1...Bxf2
- 2.Qc4#
- 2.Qd5#
- 1...Bxb4
- 2.Qc4#
- 2.Qxb4#
- 2.Qd5#
- 1...Sxf2
- 2.Qc4#
- 2.Qd5#
- 1...Sxf6
- 2.Qd3#
- 2.Qc4#
- 1...Qh1
- 2.Qd3#
- 2.Qc4#
- 1...Qg2
- 2.Qd3#
- 2.Qc4#
- 1...Qg5
- 2.Qd3#
- 2.Qc4#
- 1...Qg6
- 2.Qc4#
- 2.Qd5#
- 1...Qg8
- 2.Qd3#
- 1...Sc3
- 2.Qd3#
- 2.Qc4#
- 1...Sc5
- 2.Qc4#
- 1...Se5
- 2.Qd5#
- 1...Sb6
- 2.Qd3#
- 1...d5
- 2.Qd3#
- 2.Qxd5#
- 1...c5
- 2.Qd3#
- 2.Qc4#
- 1...c6
- 2.Qd3#
- 2.Qc4#
- 1...Sxb2!
- threat
- 1.Qc6?
- threat
- 2.Qe4#
- 2.Qd5#
- 2.Qc4#
- 1...Qxf2
- 2.Qd5#
- 2.Qc4#
- 1...Bxf2
- 2.Qd5#
- 2.Qc4#
- 1...Bxb4
- 2.Qd5#
- 2.Qc4#
- 1...Sxf2
- 2.Qd5#
- 2.Qc4#
- 1...Sxf6
- 2.Qc4#
- 1...Qh1
- 2.Qc4#
- 1...Qg2
- 2.Qc4#
- 1...Qg5
- 2.Qe4#
- 2.Qc4#
- 1...Qg6
- 2.Qd5#
- 2.Qc4#
- 1...Qg8
- 2.Qe4#
- 1...Sc3
- 2.Qc4#
- 1...Sc5
- 2.Qd5#
- 1...Se5
- 2.Qe4#
- 2.Qd5#
- 1...Sb6
- 2.Qe4#
- 1...d5
- 2.Qxd5#
- 1...Sxb2!
- threat
- 1.b5+?
- 1...Bb4
- 2.Qxb4#
- 1...Kc5!
- 1...Bb4
- 1.Qc2?
- Keys
- 1.Qb3!
- threat
- 2.Qc4#
- 2.Qd5#
- 2.Qd3#
- 1...Qxf2
- 2.Qc4#
- 2.Qd5#
- 1...Bxf2
- 2.Qc4#
- 2.Qd5#
- 1...Bxb4
- 2.Qc4#
- 2.Qd5#
- 2.Qxb4#
- 1...Sxb2
- 2.Qxe3#
- 1...Sxf2
- 2.Qc4#
- 2.Qd5#
- 1...Sxf6
- 2.Qc4#
- 2.Qd3#
- 1...Qh1
- 2.Qc4#
- 2.Qd3#
- 1...Qg2
- 2.Qc4#
- 2.Qd3#
- 1...Qg5
- 2.Qc4#
- 2.Qd3#
- 1...Qg6
- 2.Qc4#
- 2.Qd5#
- 1...Qg8
- 2.Qd3#
- 1...Bc3
- 2.Qc4#
- 2.Qd5#
- 1...Sc3
- 2.Qc4#
- 1...Sc5
- 2.Qc4#
- 2.Qd5#
- 1...Se5
- 2.Qd5#
- 1...Sb6
- 2.Qd3#
- 1...d5
- 2.Qxd5#
- 2.Qd3#
- 1...c6
- 2.Qc4#
- 2.Qd3#
- threat
- 1.Qb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- B(b);OGATE,P_SPINB(b),XP(F)::QAR2(E),XB(b)
- Tries
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- Q(c);N_SPINR(d),XB(D)::QAR1(E)
- B(b);N_SPINR(d),XB(D)::QAR1(E)
- B(b);XP(F)::QAR1(E)
- S(a);N_SPINR(d),XB(D)::QAR1(E)
- Q(c);::QAR1(E)
- S(a);::QAR1(E)
- S(h);::QAR1(E)
- P(f);::QAR1(E)
- Refutation
- S(a);XP(B)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- Q(c);::QAR1(E)
- S(h);::QAR1(E)
- Refutation
- S(a);XP(B)
- Try
- Q(E);
- Threat
- DUALS(3)
- Vars
- S(h);XS(H)::QAR1(E)
- Q(c);::QAR1(E)
- S(a);::QAR1(E)
- S(h);::QAR1(E)
- P(f);::QAR1(E),XP(f)
- Refutation
- S(a);XP(B)
- Try
- P(F);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAR2(E),XB(b)
- Refutation
- K(e);S_FLIGHT
- Try
- Actual
- Q(E);
- Threat
- DUALS(3)
- Vars
- S(a);N_GUARD,XP(B)::QAB1(E),XR(d)
- Q(c);::QAR1(E)
- S(a);::QAR1(E)
- S(h);::QAR1(E)
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).