MESON Chess Problem Database
Problem Display
PID: 6159 (2R5/rB3p2/3N4/1nNpPR2/p2k4/3p1r2/1P3P2/QKn3Bb w - - 0 1)
Hartong, Jan
3rd Prize, Magyar Sakkvilag, 1927
#2
11 + 10
| 3979 | Systematic Terminology | 1984 |
SOLUTION
- SOUND
- Sets
- 1...Rxf2
- 2.Bxf2#
- 1...Re3
- 2.fxe3#
- 1...Rg3
- 2.fxg3#
- 1...Rh3
- 2.f3#
- 1...Rf4
- 2.f3#
- 1...Rxf5
- 2.f4#
- 1...Rxb7
- 2.Qxa4#
- 1...Sa3+
- 2.bxa3#
- 1...Sc3+
- 2.bxc3#
- 1...Sxd6
- 2.b3#
- 1...Sc7
- 2.b4#
- 1...f6
- 2.Se6#
- 1...Rxf2
- Keys
- 1.e6!
- threat
- 2.Rxd5#
- 1...Sa3+
- 2.bxa3#
- 1...Sc3+
- 2.bxc3#
- 1...Rxf2
- 2.Bxf2#
- 1...Rxf5
- 2.f4#
- 1...Rxb7
- 2.Qxa4#
- 1...Sxd6
- 2.b3#
- 1...fxe6
- 2.Sxe6#
- 1...Sc7
- 2.b4#
- 1...Re3
- 2.fxe3#
- 1...Rg3
- 2.fxg3#
- 1...Rh3
- 2.f3#
- 1...Rf4
- 2.f3#
- threat
- 1.e6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- R(d);OGATE,P_SPINR(d),XP(E)::B(C),XR(d)
- R(d);OGATE::P(E),XR(d)
- R(d);OGATE::B(C)+P(E),XR(d)
- R(d);OGATE::B(C)+P(E)
- R(d);OGATE,XR(H)::B(C)+P(E)
- R(i);N_GUARD,XB(J)::QAR(A),XP(e)
- S(g);CHECK,OGATE::QAB(A)+P(D),XS(g)
- S(g);CHECK,OGATE::P(D),XS(g)
- S(g);N_GUARD,XS(I)::QAB(A)+P(D)
- S(g);N_GUARD::QAB(A)+P(D)
- P(j);N_GUARD::S(F)
- Actual
- P(G);
- Threat
- R1(H),XP(h)
- Vars
- S(g);CHECK,OGATE::QAB(A)+P(D),XS(g)
- S(g);CHECK,OGATE::P(D),XS(g)
- R(d);OGATE,P_SPINR(d),XP(E)::B(C),XR(d)
- R(d);OGATE,XR(H)::B(C)+P(E)
- R(i);N_GUARD,XB(J)::QAR(A),XP(e)
- S(g);N_GUARD,XS(I)::QAB(A)+P(D)
- P(j);XP(G)::S(F),XP(j)
- S(g);N_GUARD::QAB(A)+P(D)
- R(d);OGATE::P(E),XR(d)
- R(d);OGATE::B(C)+P(E),XR(d)
- R(d);OGATE::B(C)+P(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).