MESON Chess Problem Database
Problem Display
PID: 136887 (K2R3N/7B/R7/4k3/6r1/1n3r2/4NP2/1Q6 w - - 0 1)
Hartong, Jan
2/3 Comm., Limburgs Dagblad, 1938
#2
8 + 4
| 14711 | Crete Open Solving | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Sf7#
- 2.Qf5#
- 1...Rd3
- 2.Sf7#
- 1...Re3
- 2.Sf7#
- 2.Qf5#
- 1...Rfg3
- 2.Sf7#
- 2.Qf5#
- 1...Rh3
- 2.Sf7#
- 2.Qf5#
- 1...Rf5
- 2.Qxf5#
- 1...Rf7
- 2.Sxf7#
- 1...Rg1
- 2.Qe4#
- 1...Rg2
- 2.Qe4#
- 1...Rgg3
- 2.Qe4#
- 1...Ra4
- 2.Sg6#
- 1...Rb4
- 2.Sg6#
- 1...Rc4
- 2.Sg6#
- 1...Rd4
- 2.Sg6#
- 1...Re4
- 2.Qxe4#
- 1...Rf4
- 2.Sg6#
- 1...Rh4
- 2.Sg6#
- 1...Rg5
- 2.Qe4#
- 1...Rg6
- 2.Sxg6#
- 1...Rg7
- 2.Qe4#
- 1...Rg8
- 2.Qe4#
- 1...Sa1
- 2.Qb5#
- 2.Qb8#
- 1...Sc1
- 2.Qb5#
- 2.Qb8#
- 1...Sd2
- 2.Qb5#
- 2.Qb8#
- 1...Sd4
- 2.Qb8#
- 1...Sa5
- 2.Qb5#
- 2.Qb8#
- 1...Sc5
- 2.Qb8#
- 1...Rc3
- Tries
- 1.Sf4?
- threat
- 2.Qe4#
- 2.Qf5#
- 1...Kxf4
- 2.Qf5#
- 1...Rgxf4
- 2.Sg6#
- 1...Rd3
- 2.Sxd3#
- 1...Re3
- 2.Qf5#
- 1...Rg5
- 2.Qe4#
- 1...Rg6
- 2.Sfxg6#
- 2.Shxg6#
- 1...Sd2
- 2.Qf5#
- 2.Qb8#
- 1...Sd4
- 2.Qe4#
- 2.Qb8#
- 1...Sc5
- 2.Qf5#
- 2.Qb8#
- 1...Rfxf4!
- threat
- 1.Qc2?
- threat
- 2.Qc7#
- 1...Rd3
- 2.Sf7#
- 1...Rc3
- 2.Sf7#
- 2.Qf5#
- 1...Rf5
- 2.Qxf5#
- 1...Rf7
- 2.Sxf7#
- 1...Rc4
- 2.Sg6#
- 1...Rd4
- 2.Sg6#
- 1...Rg6
- 2.Sxg6#
- 1...Rg7
- 2.Qe4#
- 1...Sc5
- 2.Qxc5#
- 1...Rf6!
- threat
- 1.Qd3?
- threat
- 2.Rd5#
- 2.Re8#
- 2.Qd5#
- 2.Qd6#
- 1...Rxd3
- 2.Sf7#
- 1...Rf5
- 2.Rd5#
- 2.Re8#
- 2.Qxf5#
- 2.Qd5#
- 1...Rf6
- 2.Rd5#
- 2.Qd5#
- 1...Rf7
- 2.Sxf7#
- 2.Rd5#
- 2.Qd5#
- 2.Qd6#
- 1...Rf8
- 2.Qd5#
- 2.Qd6#
- 1...Rd4
- 2.Sg6#
- 1...Rg6
- 2.Sxg6#
- 2.Rd5#
- 2.Qd5#
- 1...Rg7
- 2.Rd5#
- 2.Qe4#
- 2.Qd5#
- 2.Qd6#
- 1...Rg8
- 2.Qe4#
- 2.Qd5#
- 2.Qd6#
- 1...Sc5
- 2.Rd5#
- 2.Qd5#
- 2.Qd6#
- 1...Sd4!
- threat
- 1.Qg6?
- threat
- 2.Re6#
- 2.Qe8#
- 2.Qd6#
- 2.Qe6#
- 1...Rf5
- 2.Re6#
- 2.Qxf5#
- 2.Qe8#
- 2.Qe6#
- 1...Rd3
- 2.Sf7#
- 2.Re6#
- 2.Qf5#
- 2.Qe8#
- 2.Qe6#
- 2.Qf6#
- 1...Rf6
- 2.Qxf6#
- 1...Rf7
- 2.Sxf7#
- 2.Re6#
- 2.Qd6#
- 2.Qe6#
- 1...Rf8
- 2.Re6#
- 2.Qd6#
- 2.Qe6#
- 1...Ra4
- 2.Qe8#
- 2.Qd6#
- 2.Qe6#
- 1...Rd4
- 2.Re6#
- 2.Qe8#
- 2.Qe6#
- 1...Sd4
- 2.Qd6#
- 1...Sc5
- 2.Qd6#
- 1...Rxg6!
- threat
- 1.Qb2+?
- 1...Rc3
- 2.Sf7#
- 1...Sd4
- 2.Qb8#
- 1...Rd4!
- 1...Rc3
- 1.Qxb3?
- threat
- 2.Re6#
- 2.Rd5#
- 2.Re8#
- 2.Qd5#
- 2.Qe6#
- 2.Qb5#
- 2.Qb8#
- 1...Rxb3
- 2.Sf7#
- 1...Rf5
- 2.Re6#
- 2.Re8#
- 2.Qd5#
- 2.Qe6#
- 1...Rg6
- 2.Qd5#
- 1...Rd3
- 2.Sf7#
- 2.Re6#
- 2.Re8#
- 2.Qe6#
- 1...Rc3
- 2.Sf7#
- 2.Re6#
- 2.Rd5#
- 2.Re8#
- 2.Qd5#
- 2.Qe6#
- 1...Rf6
- 2.Ra5#
- 2.Rd5#
- 2.Qd5#
- 2.Qb5#
- 1...Rf7
- 2.Sxf7#
- 2.Re6#
- 2.Rd5#
- 2.Qd5#
- 2.Qe6#
- 2.Qb5#
- 1...Rf8
- 2.Re6#
- 2.Qd5#
- 2.Qe6#
- 2.Qb5#
- 2.Qb8#
- 1...Ra4
- 2.Rd5#
- 2.Re8#
- 2.Qd5#
- 2.Qe6#
- 2.Qb5#
- 2.Qb8#
- 1...Rb4
- 2.Re6#
- 2.Rd5#
- 2.Re8#
- 2.Qd5#
- 2.Qe6#
- 1...Rd4
- 2.Re6#
- 2.Re8#
- 2.Qe6#
- 1...Rg7
- 2.Re6#
- 2.Rd5#
- 2.Qd5#
- 2.Qe6#
- 2.Qb5#
- 1...Rg8
- 2.Re6#
- 2.Qd5#
- 2.Qe6#
- 2.Qb5#
- 2.Qb8#
- 1...Rc4!
- threat
- 1.Sf4?
- Keys
- 1.Sc1!
- 1...Kf4
- 2.Qf5#
- 1...Rxf2
- 2.Sd3#
- 1...Sxc1
- 2.Qb8#
- 1...Rc3
- 2.Qf5#
- 1...Rd3
- 2.Sxd3#
- 1...Re3
- 2.Qf5#
- 1...Rfg3
- 2.Qf5#
- 1...Rh3
- 2.Qf5#
- 1...Rff4
- 2.Sd3#
- 1...Rf5
- 2.Qxf5#
- 1...Rf6
- 2.Sd3#
- 1...Rf7
- 2.Sd3#
- 1...Rf8
- 2.Sd3#
- 1...Rg1
- 2.Qe4#
- 1...Rg2
- 2.Qe4#
- 1...Rgg3
- 2.Qe4#
- 1...Ra4
- 2.Sg6#
- 1...Rb4
- 2.Sg6#
- 1...Rc4
- 2.Sg6#
- 1...Rd4
- 2.Sg6#
- 1...Re4
- 2.Qxe4#
- 1...Rgf4
- 2.Sg6#
- 1...Rh4
- 2.Sg6#
- 1...Rg5
- 2.Qe4#
- 1...Rg6
- 2.Sxg6#
- 1...Rg7
- 2.Qe4#
- 1...Rg8
- 2.Qe4#
- 1...Sa1
- 2.Qb8#
- 1...Sd2
- 2.Qb8#
- 1...Sd4
- 2.Qb8#
- 1...Sa5
- 2.Qb8#
- 1...Sc5
- 2.Qb8#
- 1...Kf4
- 1.Sc1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 2
- ADDED MATES = 13
- REMOVED MATES = 0
- Sets
- R(b);N_GUARD::S(H)
- R(b);N_GUARD::QAR1(A),XR(b)
- R(b);N_GUARD::S(H),XR(b)
- R(c);N_GUARD::QAR1(A)
- R(c);N_GUARD,P_PINR(D)::S(H)
- R(c);N_GUARD::S(H)
- R(c);N_GUARD::QAR1(A),XR(c)
- R(c);N_GUARD::S(H),XR(c)
- R(c);N_GUARD,P_PINR(G)::QAR1(A)
- S(a);OGATE::QAB(A)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- K(d);S_FLIGHT,XS(B)::QAR1(A)
- R(c);N_GUARD,XS(B)::S(H)
- R(b);N_GUARD::S(B),XR(b)
- R(b);::QAR1(A)
- R(c);::QAR1(A)
- Refutation
- R(b);XS(B)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- R(b);N_GUARD::S(H)
- R(b);N_GUARD::QAR1(A),XR(b)
- R(b);N_GUARD::S(H),XR(b)
- R(c);N_GUARD::S(H)
- R(c);N_GUARD::S(H),XR(c)
- R(c);N_GUARD::QAR1(A)
- S(a);N_GUARD::QAR2(A),XS(a)
- Refutation
- R(b);
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(b);N_GUARD,XQ(A)::S(H)
- R(c);N_GUARD::S(H)
- Refutation
- S(a);
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(b);N_GUARD::QAB1(A),XR(b)
- S(a);::QAB1(A)
- Refutation
- R(c);XQ(A)
- Try
- Q(A);CHECK
- Vars
- R(b);P_SPINR(b)::S(H)
- S(a);OGATE,P_SPINS(a)::QAB(A)
- Refutation
- R(c);P_SPINR(c)
- Try
- Q(A);XS(a)
- Threat
- DUALS(7)
- Vars
- R(b);N_GUARD,XQ(A)::S(H)
- R(c);::QAR1(A)
- Refutation
- R(c);
- Try
- Actual
- S(B);
- Vars
- K(d);S_FLIGHT::QAR1(A)
- R(b);N_GUARD,XP(C)::S(B)
- S(a);OGATE,XS(B)::QAB(A)
- R(b);N_GUARD::QAR1(A)
- R(b);N_GUARD::S(B),XR(b)
- R(b);N_GUARD::S(B)
- R(b);N_GUARD::QAR1(A),XR(b)
- R(b);N_GUARD,P_PINR(G)::S(B)
- R(c);N_GUARD::QAR1(A)
- R(c);N_GUARD,P_PINR(D)::S(H)
- R(c);N_GUARD::S(H)
- R(c);N_GUARD::QAR1(A),XR(c)
- R(c);N_GUARD::S(H),XR(c)
- R(c);N_GUARD,P_PINR(G)::QAR1(A)
- S(a);OGATE::QAB(A)
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).