MESON Chess Problem Database
Problem Display
PID: 98972 (4b3/4B2B/2p3qp/R3P3/1Npk4/K1N5/3P1n2/6Qn w - - 0 1)
Apro, Laszlo
Magyar Sakkelet, 1952
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb1
- 2.Se2#
- 1...Qc2
- 2.Se2#
- 2.Sxc2#
- 1...Qh5
- 2.Sc2#
- 1...Qf7
- 2.Se2#
- 2.Sc2#
- 1...Qxg1
- 2.Se2#
- 2.Sc2#
- 1...Qg2
- 2.Se2#
- 2.Sc2#
- 1...Qg3
- 2.Sc2#
- 1...Qg4
- 2.Sc2#
- 1...Qg5
- 2.Se2#
- 2.Sc2#
- 1...Qd6
- 2.Se2#
- 1...Qe6
- 2.Se2#
- 2.Sc2#
- 1...Qf6
- 2.Se2#
- 2.Sc2#
- 1...Qg7
- 2.Se2#
- 2.Sc2#
- 1...Qg8
- 2.Se2#
- 2.Sc2#
- 1...Sg3
- 2.Qxf2#
- 1...Qb1
- Tries
- 1.Sc2+?
- 1...Qxc2
- 2.Se2#
- 1...Kd3!
- 1...Qxc2
- 1.Qe1?
- threat
- 2.Bc5#
- 2.Qe3#
- 1...Qd3
- 2.Bc5#
- 1...Qg3
- 2.Sc2#
- 2.Bc5#
- 1...Qg5
- 2.Se2#
- 2.Sc2#
- 2.Bc5#
- 1...Qd6
- 2.Se2#
- 2.Qe3#
- 1...Sd1
- 2.Bc5#
- 1...Sd3
- 2.Sc2#
- 2.Qe3#
- 1...Se4
- 2.Se2#
- 2.Qe3#
- 1...Sg4
- 2.Bc5#
- 1...c5
- 2.Bxc5#
- 2.Qe3#
- 1...Qe4!
- threat
- 1.Qg3?
- threat
- 2.Bc5#
- 2.Qe3#
- 1...Qxg3
- 2.Sc2#
- 1...Qd3
- 2.Bc5#
- 1...Qe4
- 2.Bc5#
- 1...Qg5
- 2.Se2#
- 2.Sc2#
- 2.Bc5#
- 1...Qd6
- 2.Se2#
- 2.Qe3#
- 1...Sd1
- 2.Bc5#
- 1...Sd3
- 2.Sc2#
- 2.Qe3#
- 1...Se4
- 2.Se2#
- 2.Sc2#
- 2.Qe3#
- 1...Sg4
- 2.Bc5#
- 1...c5
- 2.Bxc5#
- 2.Qe3#
- 1...Sxg3!
- threat
- 1.Qg4+?
- 1...Qe4
- 2.Se2#
- 1...Qxg4
- 2.Sc2#
- 1...Se4
- 2.Se2#
- 1...Sxg4!
- 1...Qe4
- 1.Qg5?
- threat
- 2.Bc5#
- 2.Qe3#
- 1...Qxg5
- 2.Se2#
- 2.Sc2#
- 1...Qd3
- 2.Bc5#
- 1...Qe4
- 2.Bc5#
- 1...Qf5
- 2.Qe3#
- 1...Qd6
- 2.Se2#
- 2.Qe3#
- 1...Sd1
- 2.Bc5#
- 1...Sd3
- 2.Sc2#
- 2.Qe3#
- 1...Se4
- 2.Se2#
- 2.Qe3#
- 1...Sg4
- 2.Bc5#
- 1...c5
- 2.Bxc5#
- 2.Qe3#
- 1...hxg5!
- threat
- 1.Qxg6?
- threat
- 2.Se2#
- 2.Sc2#
- 2.Qd6#
- 1...c5
- 2.Qd6#
- 1...Bf7
- 2.Se2#
- 2.Sc2#
- 2.Sxc6#
- 1...Sg3
- 2.Sc2#
- 2.Qd6#
- 1...Se4
- 2.Se2#
- 2.Qxe4#
- 1...Bxg6!
- threat
- 1.Sc2+?
- Keys
- 1.Qh2!
- threat
- 2.Bc5#
- 1...Qg3
- 2.Sc2#
- 1...Qd6
- 2.Se2#
- 1...Sg3
- 2.Qxf2#
- 1...Sd3
- 2.Sc2#
- 1...Se4
- 2.Se2#
- 1...c5
- 2.Bxc5#
- threat
- 1.Qh2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 3
- Sets
- Q(f);::S(D)
- Q(f);N_GUARD::S(E)
- Q(f);N_GUARD,P_PINS(D)::S(E)
- Q(f);P_PINS(E)::S(D)
- S(a);N_GUARD::QAB(A),XS(b)
- Tries
- Try
- S(E);CHECK
- Vars
- Q(f);XS(E)::S(D)
- Refutation
- K(d);N_SPINS(b),P-FLIGHT,P_SPINQ(f)
- Try
- Q(A);N_PINS(b)
- Threat
- DUALS(2)
- Vars
- Q(f);P_PINS(D)::B(H)
- S(b);::B(H)
- Refutation
- Q(f);
- Try
- Q(A);N_PINS(b)
- Threat
- DUALS(2)
- Vars
- Q(f);N_GUARD,P_PINS(D),XQ(A)::S(E)
- Q(f);P_PINS(D)::B(H)
- Q(f);::B(H)
- S(b);::B(H)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);CHECK,N_PINS(b)
- Vars
- Q(f);P_SPINQ(f)::S(D)
- Q(f);XQ(A)::S(E)
- S(b);P_SPINS(b)::S(D)
- Refutation
- S(b);XQ(A)
- Try
- Q(A);N_PINS(b)
- Threat
- DUALS(2)
- Vars
- Q(f);P_PINS(D)::B(H)
- Q(f);::B(H)
- Q(f);::QAB1(A)
- S(b);::B(H)
- Refutation
- P(g);XQ(A)
- Try
- Q(A);N_PINS(b),XQ(f)
- Threat
- DUALS(3)
- Vars
- P(e);::QAR2(A)
- Refutation
- B(h);XQ(A)
- Try
- Actual
- Q(A);N_PINS(b)
- Threat
- B(H)
- Vars
- Q(f);N_GUARD,P_PINS(D)::S(E)
- Q(f);P_PINS(E)::S(D)
- S(a);N_GUARD::QAB(A),XS(b)
- S(b);SBLOCK,S_CUTQ(f)::S(E)
- S(b);SBLOCK::S(D)
- P(e);::B(H),XP(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).