MESON Chess Problem Database
Problem Display
PID: 54967 (Q7/8/4N3/1P1p1p2/1KNBk3/1P1p1p1p/7q/6nr w - - 0 1)
Groeneveld, Cornelis
2nd HM., Problem Observer, 2004
#2
7 + 9
| 102 | Probleemblad | 2005 |
SOLUTION
- SOUND
- Sets
- 1...Qg3
- 2.Sd2#
- 1...Qe5
- 2.Sd2#
- 1...Qd6+
- 2.Sxd6#
- 1...Qc7
- 2.Sd2#
- 1...Qb8
- 2.Sd2#
- 1...Qa2
- 2.Sd6#
- 1...Qb2
- 2.Sd6#
- 1...Qc2
- 2.Sd6#
- 1...Qd2+
- 2.Sxd2#
- 1...Qe2
- 2.Sd6#
- 1...Qf2
- 2.Sd6#
- 1...Qg2
- 2.Sd6#
- 1...Se2
- 2.Sd2#
- 1...f2
- 2.Sd2#
- 1...f4
- 2.Sd6#
- 1...Qg3
- Tries
- 1.Sg5+?
- 1...Kxd4
- 2.Qa7#
- 1...Kf4!
- 1...Kxd4
- 1.Qa2?
- 1...Qd6+
- 2.Sxd6#
- 1...Qd2+
- 2.Sxd2#
- 1...Qxa2
- 2.Sd6#
- 1...dxc4
- 2.Qa8#
- 1...d2
- 2.Qb1#
- 2.Qc2#
- 1...f2
- 2.Sd2#
- 1...f4
- 2.Sd6#
- 1...Qg3
- 2.Sd2#
- 1...Qe5
- 2.Sd2#
- 1...Qc7
- 2.Sd2#
- 1...Qb8
- 2.Sd2#
- 1...Qb2
- 2.Sd6#
- 1...Qc2
- 2.Sd6#
- 1...Qe2
- 2.Sd6#
- 1...Qf2
- 2.Sd6#
- 1...Qg2
- 2.Sd6#
- 1...Se2
- 2.Sd2#
- 1...Qf4!
- 1...Qd6+
- 1.Qb8?
- 1...Qd6+
- 2.Sxd6#
- 1...Qd2+
- 2.Sxd2#
- 1...Qxb8
- 2.Sd2#
- 1...dxc4
- 2.Qb7#
- 2.Qa8#
- 1...f2
- 2.Sd2#
- 1...f4
- 2.Sd6#
- 2.Qe5#
- 1...Qf4
- 2.Qxf4#
- 1...Qg3
- 2.Sd2#
- 1...Qe5
- 2.Sd2#
- 2.Qxe5#
- 1...Qc7
- 2.Sd2#
- 1...Qa2
- 2.Sd6#
- 2.Qf4#
- 2.Qe5#
- 1...Qb2
- 2.Sd6#
- 2.Qf4#
- 2.Qe5#
- 1...Qc2
- 2.Sd6#
- 2.Qf4#
- 2.Qe5#
- 1...Qe2
- 2.Sd6#
- 2.Qf4#
- 2.Qe5#
- 1...Qf2
- 2.Sd6#
- 2.Qf4#
- 2.Qe5#
- 1...Qg2
- 2.Sd6#
- 2.Qf4#
- 2.Qe5#
- 1...Se2
- 2.Sd2#
- 1...d2!
- 1...Qd6+
- 1.Qh8?
- 1...Qd6+
- 2.Sxd6#
- 1...Qd2+
- 2.Sxd2#
- 1...dxc4
- 2.Qa8#
- 1...f2
- 2.Sd2#
- 1...f4
- 2.Sd6#
- 2.Qe5#
- 2.Qh7#
- 1...Qf4
- 2.Sc5#
- 1...Qg3
- 2.Sd2#
- 1...Qe5
- 2.Sd2#
- 2.Qxe5#
- 1...Qc7
- 2.Sd2#
- 1...Qb8
- 2.Sd2#
- 1...Qa2
- 2.Sd6#
- 2.Qe5#
- 1...Qb2
- 2.Sd6#
- 2.Qe5#
- 1...Qc2
- 2.Sd6#
- 2.Qe5#
- 1...Qe2
- 2.Sd6#
- 2.Qe5#
- 1...Qf2
- 2.Sd6#
- 2.Qe5#
- 1...Qg2
- 2.Sd6#
- 2.Qe5#
- 1...Se2
- 2.Sd2#
- 1...d2!
- 1...Qd6+
- 1.Sg5+?
- Keys
- 1.Qa1!
- 1...Qd6+
- 2.Sxd6#
- 1...Qd2+
- 2.Sxd2#
- 1...dxc4
- 2.Qa8#
- 1...d2
- 2.Qb1#
- 1...f2
- 2.Sd2#
- 1...f4
- 2.Sd6#
- 1...Qf4
- 2.Sc5#
- 1...Qg3
- 2.Sd2#
- 1...Qe5
- 2.Sd2#
- 1...Qc7
- 2.Sd2#
- 1...Qb8
- 2.Sd2#
- 1...Qa2
- 2.Sd6#
- 1...Qb2
- 2.Sd6#
- 1...Qc2
- 2.Sd6#
- 1...Qe2
- 2.Sd6#
- 1...Qf2
- 2.Sd6#
- 1...Qg2
- 2.Sd6#
- 1...Se2
- 2.Sd2#
- 1...Qd6+
- 1.Qa1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(c);N_GUARD::S(C)
- Q(c);CHECK,N_GUARD::S(C),XQ(c)
- Q(c);N_GUARD,P_PINP(E)::S(C)
- Q(c);N_GUARD,P_PINP(A)::S(C)
- S(a);S_CUTQ(c)::S(C)
- P(e);S_CUTQ(c)::S(C)
- P(i);S_CUTQ(c)::S(C)
- Tries
- Try
- S(F);CHECK
- Vars
- K(g);N_SPINP(h),P-FLIGHT,XB(D)::QAB(G)
- Refutation
- K(g);N_SPINP(h),P-FLIGHT
- Try
- Q(G);N_PINP(h)
- Vars
- Q(c);CHECK,N_GUARD::S(C),XQ(c)
- Q(c);N_GUARD,XQ(G)::S(C)
- P(h);OGATEB,XS(C)::QAB(G)
- P(e);S_CUTQ(c)::S(C)
- P(i);S_CUTQ(c)::S(C)
- Q(c);N_GUARD::S(C)
- Q(c);N_GUARD,P_PINP(E)::S(C)
- Q(c);N_GUARD,P_PINP(A)::S(C)
- S(a);S_CUTQ(c)::S(C)
- Refutation
- Q(c);
- Try
- Q(G);N_PINP(h)
- Vars
- Q(c);CHECK,N_GUARD::S(C),XQ(c)
- Q(c);N_GUARD,P_PINP(E),XQ(G)::S(C)
- P(e);S_CUTQ(c)::S(C)
- Q(c);N_GUARD::QAR1(G),XQ(c)
- Q(c);N_GUARD::S(C)
- S(a);S_CUTQ(c)::S(C)
- Refutation
- P(d);
- Try
- Q(G);N_PINP(h)
- Vars
- Q(c);CHECK,N_GUARD::S(C),XQ(c)
- P(h);OGATEB,XS(C)::QAB(G)
- P(e);S_CUTQ(c)::S(C)
- Q(c);SBLOCK::S(F)
- Q(c);N_GUARD::S(C)
- Q(c);N_GUARD,P_PINP(E)::S(C)
- S(a);S_CUTQ(c)::S(C)
- Refutation
- P(d);
- Try
- Actual
- Q(G);N_PINP(h)
- Vars
- Q(c);CHECK,N_GUARD::S(C),XQ(c)
- P(h);OGATEB,XS(C)::QAB(G)
- P(d);OGATEB::QAB(G)
- P(e);S_CUTQ(c)::S(C)
- P(i);S_CUTQ(c)::S(C)
- Q(c);SBLOCK::S(F)
- Q(c);N_GUARD::S(C)
- Q(c);N_GUARD,P_PINP(E)::S(C)
- Q(c);N_GUARD,P_PINP(A)::S(C)
- S(a);S_CUTQ(c)::S(C)
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).