MESON Chess Problem Database
Problem Display
PID: 15451 (2R2rB1/3QN3/p3np2/P1Bq3r/P1k5/4RNPP/bP2P3/3n2K1 w - - 0 1)
Fleck, Ferenc
Model problem, Match: East Germany - Hungary, 1984
#2
14 + 9
SOLUTION
- SOUND
- Sets
- 1...Qxf3
- 2.Qd3#
- 2.Qd4#
- 1...Qe4
- 2.Sd2#
- 1...Qc6
- 2.Qd4#
- 1...Qb7
- 2.Sd2#
- 2.Qd3#
- 2.Qd4#
- 1...Qa8
- 2.Sd2#
- 2.Qd3#
- 2.Qd4#
- 1...Qd2
- 2.Sxd2#
- 1...Qd3
- 2.Qxd3#
- 1...Qd4
- 2.Qxd4#
- 1...Qxc5
- 2.Qd4#
- 1...Qe5
- 2.Sd2#
- 2.Qd3#
- 1...Qf5
- 2.Sd2#
- 2.Qd4#
- 1...Qg5
- 2.Sd2#
- 2.Qd3#
- 2.Qd4#
- 1...Rxh3
- 2.Qxd5#
- 1...Rh4
- 2.Qxd5#
- 1...Rh6
- 2.Qxd5#
- 1...Rh7
- 2.Qxd5#
- 1...Rh8
- 2.Qxd5#
- 1...Bb1
- 2.b3#
- 1...Sf2
- 2.Rc3#
- 1...Sc3
- 2.Rxc3#
- 1...Sd4
- 2.Sd2#
- 1...Sf4
- 2.Sd2#
- 1...Sxc5
- 2.Qg4#
- 1...Sg5
- 2.Sd2#
- 2.Bxd5#
- 2.Qxd5#
- 1...Sg7
- 2.Sd2#
- 2.Qg4#
- 1...Sd8
- 2.Sd2#
- 2.Qg4#
- 1...f5
- 2.Qxd5#
- 1...Qxf3
- Tries
- 1.Se5+?
- 1...Qxe5
- 2.Qd3#
- 1...fxe5
- 2.Qxd5#
- 1...Rxe5!
- 1...Qxe5
- 1.Ba3+?
- 1...Qc6
- 2.Sd2#
- 2.Qd3#
- 2.Qd4#
- 1...Qc5
- 2.Sd2#
- 2.Qd3#
- 2.Qd4#
- 1...Sc5
- 2.Rxc5#
- 2.Qg4#
- 1...Sc7
- 2.Rxc7#
- 2.Qg4#
- 2.Qc6#
- 2.Qxc7#
- 1...Rxc8!
- 1...Qc6
- 1.Qxe6?
- threat
- 2.Sd2#
- 2.Qg4#
- 2.Qe4#
- 2.Qxa6#
- 1...Qxe6
- 2.Sd2#
- 1...Rxg8
- 2.Sd2#
- 2.Qxa6#
- 1...Sxe3
- 2.Sd2#
- 1...Sc3
- 2.Sd2#
- 2.Rxc3#
- 1...Rh4
- 2.Sd2#
- 2.Qxd5#
- 2.Qxa6#
- 1...Re5
- 2.Sd2#
- 2.Qxa6#
- 1...Rf5
- 2.Sd2#
- 2.Qe4#
- 2.Qxa6#
- 1...Rg5
- 2.Sd2#
- 2.Qe4#
- 2.Qxa6#
- 1...Rf7
- 2.Sd2#
- 2.Ba3#
- 2.Bd6#
- 2.Qxa6#
- 1...Bb1
- 2.Sd2#
- 2.Qxa6#
- 2.b3#
- 1...Sf2
- 2.Sd2#
- 2.Rc3#
- 2.Qxa6#
- 1...f5
- 2.Sd2#
- 2.Se5#
- 2.Qxd5#
- 2.Qxa6#
- 1...Rxc8!
- threat
- 1.Se5+?
- Keys
- 1.Qb7!
- threat
- 2.Qxa6#
- 2.Qb4#
- 1...Qxb7
- 2.Sd2#
- 1...Qxc5
- 2.Qe4#
- 1...Rxc8
- 2.Qb4#
- 1...Sxe3
- 2.Qb4#
- 1...Sxc5
- 2.Re4#
- 1...Qc6
- 2.Qb4#
- 1...Sc7
- 2.Qb4#
- 1...Qd2
- 2.Sxd2#
- 2.Qxa6#
- 1...Qd3
- 2.Qb4#
- 2.exd3#
- 1...Qd6
- 2.Qb4#
- 1...Qd7
- 2.Qb4#
- 1...Sc3
- 2.Rxc3#
- 2.Qb4#
- 1...Sd4
- 2.Sd2#
- 2.Qb4#
- threat
- 1.Qb7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 6
- REMOVED MATES = 15
- Sets
- Q(d);N_GUARD,P_SPINS(g)::S(E)
- Q(d);OGATE,P_SPINS(g)::QAR1(K)
- Q(d);N_GUARD,P_SPINS(g)::S(E),XQ(d)
- Q(d);OGATE,P_SPINS(g)::QAB1(K),XQ(d)
- Q(d);OGATE,P_PINR(D),P_SPINS(g)::QAR1(K),XQ(d)
- Q(d);OGATE,P_PINR(D),P_SPINQ(d),P_SPINS(g),XB(J)::QAR1(K)
- R(e);N_GUARD,XP(G)::QAB1(K),XQ(d)
- R(e);N_GUARD::QAB1(K),XQ(d)
- B(b);N_GUARD::P(B)
- S(a);N_GUARD::R1(D)
- S(a);N_GUARD::R1(D),XS(a)
- S(g);P_SPINQ(d)::S(E)
- S(g);OGATE,P_SPINQ(d),P_SPINS(g),XB(J)::QAR(K)
- P(h);S_CUTR(e)::QAB1(K),XQ(d)
- Tries
- Try
- S(E);CHECK
- Vars
- Q(d);OGATE,P_SPINS(g),XS(E)::QAB1(K)
- P(h);XS(E)::QAB1(K),XQ(d)
- Refutation
- R(e);XS(E)
- Try
- B(J);CHECK
- Refutation
- R(i);XR(M)
- Try
- Q(K);P_PINQ(d),XS(g)
- Threat
- DUALS(4)
- Vars
- Q(d);XQ(K)::S(E)
- S(a);XR(D)::S(E)
- Refutation
- R(i);XR(M)
- Try
- Actual
- Q(K);
- Threat
- DUALS(2)
- Vars
- Q(d);N_GUARD,P_SPINS(g),XQ(K)::S(E)
- Q(d);OGATE,P_PINR(D),P_SPINQ(d),P_SPINS(g),XB(J)::QAR2(K)
- R(i);XR(M)::QAR1(K)
- S(a);XR(D)::QAR1(K)
- S(g);N_GUARD,P_SPINQ(d),P_SPINS(g),XB(J)::R(D)
- Q(d);P_SPINS(g)::QAR1(K)
- S(g);P_SPINQ(d)::QAR1(K)
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).