MESON Chess Problem Database
Problem Display
PID: 258 (5b2/2P5/1pnRp3/p1k1P1Q1/P2R1q2/KP3n2/3NN3/7B w - - 0 1)
Fleck, Ferenc
1st Prize, Szachy, 1950
#2
11 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxd2
- 2.Rc4#
- 1...Qh2
- 2.Se4#
- 2.Rc4#
- 1...Qe3
- 2.Rc4#
- 1...Qg3
- 2.Se4#
- 2.Rc4#
- 1...Qxe5
- 2.Se4#
- 1...Qxg5
- 2.Se4#
- 2.Rc4#
- 1...Qe4
- 2.Sxe4#
- 1...Qf5
- 2.Rc4#
- 1...Qf6
- 2.Se4#
- 2.Rc4#
- 1...Qf7
- 2.Se4#
- 2.Rc4#
- 1...Se1
- 2.Rxc6#
- 1...Sg1
- 2.Rxc6#
- 1...Sxd2
- 2.Rxc6#
- 1...Sh2
- 2.Rxc6#
- 1...Sh4
- 2.Rxc6#
- 1...Sfxe5
- 2.Rxc6#
- 1...Sxg5
- 2.Rxc6#
- 1...Scxe5
- 2.c8Q#
- 2.c8R#
- 1...Qxd2
- Tries
- 1.Sxf4?
- threat
- 2.Se4#
- 2.Sd3#
- 2.Sxe6#
- 2.Rc4#
- 1...Bxd6
- 2.Sxe6#
- 2.Rc4#
- 1...Sxd2
- 2.Sd3#
- 2.Sxe6#
- 1...Sfxd4
- 2.Se4#
- 2.Sd3#
- 1...Sfxe5
- 2.Se4#
- 2.Sd3#
- 2.Sxe6#
- 1...Sxg5
- 2.Sd3#
- 2.Rc4#
- 1...Scxd4
- 2.Se4#
- 2.Sd3#
- 1...Scxe5
- 2.Se4#
- 2.Sd3#
- 2.Sxe6#
- 2.c8Q#
- 2.c8R#
- 1...Se1
- 2.Se4#
- 2.Sxe6#
- 2.Rc4#
- 1...Sb4
- 2.Se4#
- 2.Sxe6#
- 2.Rc4#
- 1...Sd8
- 2.Se4#
- 2.Sd3#
- 2.Rc4#
- 1...b5!
- threat
- 1.Qxf4?
- threat
- 2.Se4#
- 2.Rc4#
- 1...Bxd6
- 2.Se4#
- 1...Sxd2
- 2.Rxc6#
- 1...Sfxd4
- 2.Se4#
- 1...Sfxe5
- 2.Se4#
- 1...Scxd4
- 2.Se4#
- 1...Scxe5
- 2.Se4#
- 1...Sg5
- 2.Rc4#
- 2.Rxc6#
- 1...b5!
- threat
- 1.b4+?
- 1...Sxb4
- 2.Sb3#
- 1...axb4+!
- 1...Sxb4
- 1.Sxf4?
- Keys
- 1.Qg1!
- threat
- 2.Rc4#
- 2.R4d5#
- 2.Qc1#
- 1...Qxd2
- 2.Rc4#
- 2.R4d5#
- 1...Qxe5
- 2.R4d5#
- 2.Qc1#
- 1...Qxd4
- 2.Se4#
- 1...Bxd6
- 2.Qc1#
- 1...Sxg1
- 2.Rxc6#
- 1...Sxd2
- 2.Rc4#
- 2.R4d5#
- 2.Rxc6#
- 1...Sfxd4
- 2.Rxc6#
- 1...Sfxe5
- 2.R4d5#
- 1...Scxd4
- 2.c8Q#
- 2.c8R#
- 1...Scxe5
- 2.R4d5#
- 1...b5
- 2.Rc4#
- 2.R4d5#
- 1...Qe3
- 2.Rc4#
- 1...Qe4
- 2.Sxe4#
- 2.Rc4#
- 2.R4d5#
- 1...Qf5
- 2.Rc4#
- 2.R4d5#
- 1...Se1
- 2.Rc4#
- 2.R4d5#
- 2.Rxc6#
- 1...Sb4
- 2.Rc4#
- 2.R4d5#
- threat
- 1.Qg1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 9
- Sets
- Q(b);N_GUARD,XS(B)::R1(G)
- Q(b);N_GUARD,P_PINP(E)::R1(G)
- Q(b);N_GUARD,P_SPINQ(b),XP(H)::S(B)
- Q(b);N_GUARD::S(B),XQ(b)
- Q(b);N_GUARD::R1(G)
- S(a);::R1(J),XS(f)
- S(a);XS(B)::R1(J),XS(f)
- S(a);P_SPINS(a),XP(H)::R1(J),XS(f)
- S(a);XQ(I)::R1(J),XS(f)
- S(f);P_SPINS(f),XP(H)::P=Q
- Tries
- Try
- S(C);XQ(b)
- Threat
- DUALS(4)
- Refutation
- P(e);
- Try
- Q(I);XQ(b)
- Threat
- DUALS(2)
- Vars
- B(h);XR(J)::S(B)
- S(a);XS(B)::R1(J),XS(f)
- S(a);XR(G)::S(B)
- S(a);XP(H)::S(B)
- S(f);XR(G)::S(B)
- S(f);XP(H)::S(B)
- Refutation
- P(e);
- Try
- P(E);CHECK
- Vars
- S(f);XP(E)::S(B)
- Refutation
- P(c);CHECK,XP(E)
- Try
- Actual
- Q(I);
- Threat
- DUALS(3)
- Vars
- Q(b);N_GUARD,P_SPINQ(b),XR(G)::S(B)
- B(h);XR(J)::QAR(I)
- S(a);XQ(I)::R1(J),XS(f)
- S(a);P_SPINS(a),XR(G)::R1(J),XS(f)
- S(a);XP(H)::QAB(I)+R(G),DCHECK
- S(f);P_SPINS(f),XR(G)::P=Q
- S(f);XP(H)::QAB(I)+R(G),DCHECK
- Q(b);P_PINP(E)::R1(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).