MESON Chess Problem Database
Problem Display
PID: 140328 (Q1n5/1r3P2/bP1BR3/1PP5/3k2p1/1BN2pP1/5n1K/2R1N3 w - - 0 1)
van Gool, Johann Christoffel
7th Place, Match: Greece - Netherlands, 1974
#2
13 + 7
| 102 | Probleemblad | 1976 |
SOLUTION
- SOUND
- Sets
- 1...Rxb6
- 2.Qd5#
- 1...Ra7
- 2.Qd5#
- 1...Rc7
- 2.Qd5#
- 1...Rd7
- 2.Qd5#
- 1...Re7
- 2.Qd5#
- 1...Rxf7
- 2.Qd5#
- 1...Rb8
- 2.Qd5#
- 1...Bxb5
- 2.Sxb5#
- 1...Sd1
- 2.Re4#
- 1...Sh1
- 2.Re4#
- 1...Sd3
- 2.Re4#
- 1...Sh3
- 2.Re4#
- 1...Se4
- 2.Rxe4#
- 1...Sxb6
- 2.Qh8#
- 1...Sa7
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...Rxb6
- Tries
- 1.Sb1?
- 1...Rxb6
- 2.Rc4#
- 2.Qd5#
- 1...Rxf7
- 2.Rc4#
- 2.Qd5#
- 1...Bxb5
- 2.Qa1#
- 1...Sxb6
- 2.Qh8#
- 1...Sxd6
- 2.Qh8#
- 1...Ra7
- 2.Rc4#
- 2.Qd5#
- 1...Rc7
- 2.Rc4#
- 2.Qd5#
- 1...Rd7
- 2.Rc4#
- 2.Qd5#
- 1...Re7
- 2.Rc4#
- 2.Qd5#
- 1...Rb8
- 2.Rc4#
- 2.Qd5#
- 1...Sd1
- 2.Rxd1#
- 1...Sh1
- 2.Rd1#
- 1...Sd3
- 2.Sc2#
- 1...Sh3
- 2.Rd1#
- 1...Sa7
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...Se4!
- 1...Rxb6
- 1.Ba2?
- 1...Rxb6
- 2.Qd5#
- 1...Rxf7
- 2.Qd5#
- 1...Bxb5
- 2.Sxb5#
- 1...Sxb6
- 2.Qh8#
- 1...Se4
- 2.Rxe4#
- 1...Ra7
- 2.Qd5#
- 1...Rc7
- 2.Qd5#
- 1...Rd7
- 2.Qd5#
- 1...Re7
- 2.Qd5#
- 1...Rb8
- 2.Qd5#
- 1...Sd1
- 2.Re4#
- 1...Sh1
- 2.Re4#
- 1...Sd3
- 2.Re4#
- 1...Sh3
- 2.Re4#
- 1...Sa7
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...Sxd6!
- 1...Rxb6
- 1.Rc2?
- 1...Rxb6
- 2.Qd5#
- 1...Rxf7
- 2.Qd5#
- 1...Bxb5
- 2.Sxb5#
- 1...Sxb6
- 2.Qh8#
- 1...Se4
- 2.Rxe4#
- 1...Ra7
- 2.Qd5#
- 1...Rc7
- 2.Qd5#
- 1...Rd7
- 2.Qd5#
- 1...Re7
- 2.Qd5#
- 1...Rb8
- 2.Qd5#
- 1...Sd1
- 2.Re4#
- 1...Sh1
- 2.Re4#
- 1...Sd3
- 2.Re4#
- 1...Sh3
- 2.Re4#
- 1...Sa7
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...Sxd6!
- 1...Rxb6
- 1.bxa6?
- threat
- 2.Sb5#
- 1...Rxb6
- 2.Qd5#
- 1...Se4
- 2.Rxe4#
- 1...Sa7
- 2.Qh8#
- 1...Sxd6!
- threat
- 1.f8Q?
- threat
- 2.Qf6#
- 1...Sxd6
- 2.Qxd6#
- 1...Se4
- 2.Rxe4#
- 1...Rf7
- 2.Qd5#
- 1...Sd3
- 2.Re4#
- 1...Rh7+!
- threat
- 1.Sb1?
- Keys
- 1.Sd5!
- 1...Rxb6
- 2.Rc4#
- 1...Rxf7
- 2.Rc4#
- 1...Bxb5
- 2.Qa1#
- 1...Sxb6
- 2.Qh8#
- 1...Sxd6
- 2.Qh8#
- 1...Ra7
- 2.Rc4#
- 1...Rc7
- 2.Rc4#
- 1...Rd7
- 2.Rc4#
- 1...Re7
- 2.Rc4#
- 1...Rb8
- 2.Rc4#
- 1...Sd1
- 2.Rxd1#
- 1...Sh1
- 2.Rd1#
- 1...Sd3
- 2.Sc2#
- 1...Sh3
- 2.Rd1#
- 1...Se4
- 2.Be5#
- 1...Sa7
- 2.Qh8#
- 1...Se7
- 2.Qh8#
- 1...Rxb6
- 1.Sd5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 13
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- R(f);OGATE,XP(I)::QAR1(M)
- R(f);OGATE::QAR1(M)
- R(f);OGATE,XP(L)::QAR1(M)
- B(e);XP(G)::S(E),XB(e)
- S(a);N_GUARD::R1(K)
- S(a);N_GUARD::R1(K),XS(a)
- S(g);OGATE,XP(I)::QAB(M)
- S(g);OGATE::QAB(M)
- Tries
- Try
- S(E);
- Vars
- B(e);OGATE,XP(G)::QAB(M)
- S(g);OGATE,XP(I)::QAB(M)
- S(g);OGATE,XB(J)::QAB(M)
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD::R(A)
- S(a);SBLOCK::S(B)
- S(g);OGATE::QAB(M)
- Refutation
- S(a);
- Try
- B(D);
- Vars
- R(f);OGATE,XP(I)::QAR1(M)
- R(f);OGATE,XP(L)::QAR1(M)
- B(e);XP(G)::S(E),XB(e)
- S(g);OGATE,XP(I)::QAB(M)
- S(a);N_GUARD::R1(K),XS(a)
- R(f);OGATE::QAR1(M)
- S(a);N_GUARD::R1(K)
- S(g);OGATE::QAB(M)
- Refutation
- S(g);XB(J)
- Try
- R(A);
- Vars
- R(f);OGATE,XP(I)::QAR1(M)
- R(f);OGATE,XP(L)::QAR1(M)
- B(e);XP(G)::S(E),XB(e)
- S(g);OGATE,XP(I)::QAB(M)
- S(a);N_GUARD::R1(K),XS(a)
- R(f);OGATE::QAR1(M)
- S(a);N_GUARD::R1(K)
- S(g);OGATE::QAB(M)
- Refutation
- S(g);XB(J)
- Try
- P(G);XB(e)
- Threat
- S(E)
- Vars
- R(f);OGATE,XP(I)::QAR1(M)
- S(a);N_GUARD::R1(K),XS(a)
- S(g);OGATE::QAB(M)
- Refutation
- S(g);XB(J)
- Try
- P(L);
- Threat
- QAB(L)
- Vars
- S(g);OGATE,XB(J)::QAR2(L),XS(g)
- S(a);N_GUARD::R1(K),XS(a)
- R(f);OGATE::QAR1(M)
- S(a);N_GUARD::R1(K)
- Refutation
- R(f);CHECK
- Try
- Actual
- S(E);
- Vars
- R(f);XP(I)::R1(A)
- R(f);XP(L)::R1(A)
- B(e);OGATE,XP(G)::QAB(M)
- S(g);OGATE,XP(I)::QAB(M)
- S(g);OGATE,XB(J)::QAB(M)
- R(f);::R1(A)
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD::R(A)
- S(a);SBLOCK::S(B)
- S(a);SBLOCK::B(J)
- S(g);OGATE::QAB(M)
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).