MESON Chess Problem Database
Problem Display
PID: 115607 (7k/2R3p1/1p1pKN2/3Qp3/3b1P2/2q3R1/2p1B3/r7 w - - 0 1)
van Dijk, Nils Gustav Gerard
El Ajedrez Espanol, 1963
#2
7 + 9
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe1
- 2.Rc8#
- 1...Qb2
- 2.Rh3#
- 2.Rc8#
- 1...Qd2
- 2.Rh3#
- 2.Rc8#
- 1...Qb4
- 2.Rh3#
- 2.Rc8#
- 1...Qa5
- 2.Rh3#
- 2.Rc8#
- 1...Qa3
- 2.Rc8#
- 1...Qb3
- 2.Rc8#
- 1...Qd3
- 2.Rc8#
- 1...Qe3
- 2.Rc8#
- 1...Qf3
- 2.Rc8#
- 1...Qxg3
- 2.Rc8#
- 1...Qc4
- 2.Rh3#
- 1...Qc5
- 2.Rh3#
- 1...Qc6
- 2.Rh3#
- 1...Qxc7
- 2.Rh3#
- 1...Rb1
- 2.Qa8#
- 1...Rc1
- 2.Qa8#
- 1...Rd1
- 2.Qa8#
- 1...Re1
- 2.Qa8#
- 1...Rf1
- 2.Qa8#
- 1...Rg1
- 2.Qa8#
- 1...Rh1
- 2.Qxh1#
- 2.Qa8#
- 1...Ra2
- 2.Qh1#
- 1...Ra3
- 2.Qh1#
- 1...Ra4
- 2.Qh1#
- 1...Ra5
- 2.Qh1#
- 1...Ra6
- 2.Qh1#
- 1...Ra7
- 2.Qh1#
- 1...Ra8
- 2.Qh1#
- 2.Qxa8#
- 1...Be3
- 2.Rh3#
- 1...Bc5
- 2.Rc8#
- 1...c1S
- 2.Qh1#
- 1...c1B
- 2.Qh1#
- 1...exf4
- 2.Qh5#
- 1...e4
- 2.Qh5#
- 1...g5
- 2.Rh7#
- 1...g6
- 2.Rh7#
- 1...Qe1
- Tries
- 1.Ke7?
- threat
- 2.Qg8#
- 1...Qb3
- 2.Rc8#
- 1...Qc4
- 2.Rh3#
- 1...Ra8
- 2.Qh1#
- 2.Qxa8#
- 1...Qxc7+!
- threat
- 1.Bf1?
- threat
- 2.Qh1#
- 1...Qxg3
- 2.Rc8#
- 1...Rxf1
- 2.Qa8#
- 1...Qd2
- 2.Rh3#
- 2.Rc8#
- 1...Qb3
- 2.Rc8#
- 1...Qd3
- 2.Rc8#
- 1...Qf3
- 2.Rc8#
- 1...Qc4
- 2.Rh3#
- 1...Qc6
- 2.Rh3#
- 1...e4
- 2.Qh5#
- 1...Bg1!
- threat
- 1.Bd3?
- threat
- 2.Rh3#
- 1...Qxd3
- 2.Rc8#
- 1...gxf6
- 2.Rh7#
- 1...Qe1
- 2.Rc8#
- 1...Rh1
- 2.Qxh1#
- 2.Qa8#
- 1...Bf2!
- threat
- 1.Bc4?
- threat
- 2.Rc8#
- 1...Qxc4
- 2.Rh3#
- 1...Ra8
- 2.Qh1#
- 2.Qxa8#
- 1...g5
- 2.Rh7#
- 1...g6
- 2.Rh7#
- 1...gxf6!
- threat
- 1.Rgxc3?
- threat
- 2.Rh3#
- 2.Rc8#
- 1...Bxc3
- 2.Rc8#
- 1...Bf2
- 2.Rc8#
- 1...Rh1
- 2.Rc8#
- 2.Qxh1#
- 2.Qa8#
- 1...Ra3
- 2.Rc8#
- 2.Qh1#
- 1...Ra8
- 2.Rh3#
- 2.Qh1#
- 2.Qxa8#
- 1...Be3
- 2.Rc8#
- 1...g5
- 2.Rh3#
- 2.Rh7#
- 1...g6
- 2.Rh3#
- 2.Rh7#
- 1...gxf6!
- threat
- 1.Rgxg7?
- threat
- 2.Rh7#
- 2.Rg8#
- 1...Qxc7
- 2.Rg8#
- 1...Qd3
- 2.Rg8#
- 1...Qg3
- 2.Rh7#
- 1...Rg1
- 2.Rh7#
- 2.Qa8#
- 1...Rh1
- 2.Rg8#
- 2.Qa8#
- 1...Ra8
- 2.Rh7#
- 2.Qxa8#
- 1...Qh3+!
- threat
- 1.Rd7?
- threat
- 2.Rd8#
- 1...Qc6
- 2.Rh3#
- 1...Qc7
- 2.Rh3#
- 1...Qc8
- 2.Rh3#
- 1...Ra8
- 2.Qh1#
- 1...g5
- 2.Rh7#
- 1...g6
- 2.Rh7#
- 1...gxf6!
- threat
- 1.Rcxg7?
- threat
- 2.Rh7#
- 2.Rg8#
- 1...Qxg3
- 2.Rh7#
- 1...Qd3
- 2.Rg8#
- 1...Qc7
- 2.Rg8#
- 1...Rh1
- 2.Rg8#
- 2.Qxh1#
- 1...Ra7
- 2.Rg8#
- 2.Qh1#
- 1...Ra8
- 2.Rh7#
- 2.Qh1#
- 1...Qc8+!
- threat
- 1.Ke7?
- Keys
- 1.Ba6!
- threat
- 2.Qa8#
- 1...Qxc7
- 2.Rh3#
- 1...Rxa6
- 2.Qh1#
- 1...Qb3
- 2.Rc8#
- 1...Qf3
- 2.Rc8#
- 1...Qc4
- 2.Rh3#
- 1...Qc6
- 2.Rh3#
- threat
- 1.Ba6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 25
- Sets
- Q(c);N_GUARD::R(G)
- Q(c);N_GUARD,P_PINQ(D)::R(G)
- Q(c);N_GUARD,XR(B)::R(G)
- Q(c);N_GUARD,P_PINQ(D)::R(B)
- Q(c);N_GUARD::R(B)
- Q(c);N_GUARD,XR(G)::R(B)
- R(a);N_GUARD::QAB1(D)
- R(a);N_GUARD::QAB(D)
- B(d);S_CUTQ(c)::R(B)
- B(d);S_CUTQ(c)::R(G)
- P(b);S_CUTR(a)::QAB(D)
- P(e);OGATE,XP(C)::QAR(D)
- P(e);OGATE::QAR(D)
- P(h);OGATE::R1(G)
- Tries
- Try
- K(E);P-FLIGHT
- Threat
- QAR1(D)
- Vars
- Q(c);N_GUARD::R(G)
- Q(c);N_GUARD::R(B)
- Refutation
- Q(c);CHECK,XR(G)
- Try
- B(A);
- Threat
- QAB(D)
- Vars
- Q(c);N_GUARD,XR(B)::R(G)
- R(a);N_GUARD,XB(A)::QAB1(D)
- Q(c);N_GUARD,P_PINQ(D)::R(G)
- Q(c);N_GUARD::R(G)
- Q(c);N_GUARD,P_PINQ(D)::R(B)
- Q(c);N_GUARD::R(B)
- P(e);OGATE::QAR(D)
- Refutation
- B(d);
- Try
- B(A);
- Threat
- R(B)
- Vars
- Q(c);N_GUARD,XB(A)::R(G)
- P(h);OGATE,XS(F)::R1(G)
- Q(c);N_GUARD::R(G)
- Refutation
- B(d);
- Try
- B(A);
- Threat
- R(G)
- Vars
- Q(c);N_GUARD,P_PINQ(D),XB(A)::R(B)
- P(h);OGATE::R1(G)
- Refutation
- P(h);XS(F)
- Try
- R(B);XQ(c)
- Threat
- DUALS(2)
- Vars
- B(d);XR(B)::R(G)
- B(d);::R(G)
- Refutation
- P(h);XS(F)
- Try
- R(B);XP(h)
- Threat
- DUALS(2)
- Vars
- Q(c);XR(G)::R1(B)
- Q(c);::R1(B)
- Refutation
- Q(c);CHECK
- Try
- R(G);
- Threat
- R(G)
- Vars
- Q(c);N_GUARD::R(B)
- Q(c);N_GUARD,P_PINR(G)::R(B)
- R(a);N_GUARD::QAB(D)
- P(h);OGATE::R1(G)
- Refutation
- P(h);XS(F)
- Try
- R(G);XP(h)
- Threat
- DUALS(2)
- Vars
- Q(c);XR(B)::R1(G)
- Q(c);::R1(G)
- Refutation
- Q(c);CHECK
- Try
- Actual
- B(A);
- Threat
- QAB1(D)
- Vars
- Q(c);N_GUARD,XR(G)::R(B)
- R(a);N_GUARD,XB(A)::QAB(D)
- Q(c);N_GUARD,P_PINQ(D)::R(G)
- Q(c);N_GUARD::R(G)
- Q(c);N_GUARD,P_PINQ(D)::R(B)
- Q(c);N_GUARD::R(B)
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).