MESON Chess Problem Database
Problem Display
PID: 232727 (3B2B1/1PRPR3/3k4/2p1p1p1/K1p4r/p1Q2n2/1Nn5/2qr2bb w - - 0 1)
Groeneveld, Cornelis
Freie Presse, 1998
#2
9 + 13
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Re6#
- 1...Rh2
- 2.Sxc4#
- 1...Rh3
- 2.Sxc4#
- 1...Rh5
- 2.Sxc4#
- 1...Rh6
- 2.Sxc4#
- 1...Rh7
- 2.Sxc4#
- 1...Rh8
- 2.Sxc4#
- 1...Bd4
- 2.Sxc4#
- 1...Scd4
- 2.Sxc4#
- 1...Se1
- 2.Qxe5#
- 1...Sd2
- 2.Qxe5#
- 1...Sh2
- 2.Qxe5#
- 1...Sfd4
- 2.Sxc4#
- 1...e4
- 2.Sxc4#
- 2.Qf6#
- 1...g4
- 2.Sxc4#
- 1...Rd5
- Tries
- 1.Rc8?
- threat
- 2.b8Q#
- 2.b8B#
- 1...axb2
- 2.b8Q#
- 2.b8B#
- 1...Qd2
- 2.b8Q#
- 2.b8B#
- 1...Qe3
- 2.b8Q#
- 2.b8B#
- 1...Qf4
- 2.b8Q#
- 2.b8B#
- 1...Qa1
- 2.b8Q#
- 2.b8B#
- 1...Qb1
- 2.b8Q#
- 2.b8B#
- 1...Re1
- 2.b8Q#
- 2.b8B#
- 1...Rf1
- 2.b8Q#
- 2.b8B#
- 1...Rd2
- 2.b8Q#
- 2.b8B#
- 1...Rd3
- 2.b8Q#
- 2.b8B#
- 1...Rdd4
- 2.b8Q#
- 2.b8B#
- 1...Rd5
- 2.b8Q#
- 2.b8B#
- 1...Rh2
- 2.Sxc4#
- 2.b8Q#
- 2.b8B#
- 1...Rh3
- 2.Sxc4#
- 2.b8Q#
- 2.b8B#
- 1...Rhd4
- 2.b8Q#
- 2.b8B#
- 1...Re4
- 2.b8Q#
- 2.b8B#
- 1...Rf4
- 2.b8Q#
- 2.b8B#
- 1...Rg4
- 2.b8Q#
- 2.b8B#
- 1...Rh5
- 2.Sxc4#
- 2.b8Q#
- 2.b8B#
- 1...Rh6
- 2.Sxc4#
- 2.b8Q#
- 2.b8B#
- 1...Rh7
- 2.Sxc4#
- 2.b8Q#
- 2.b8B#
- 1...Rh8
- 2.Sxc4#
- 2.b8Q#
- 2.b8B#
- 1...Bf2
- 2.b8Q#
- 2.b8B#
- 1...Bh2
- 2.b8Q#
- 2.b8B#
- 1...Be3
- 2.b8Q#
- 2.b8B#
- 1...Bd4
- 2.Sxc4#
- 2.b8Q#
- 2.b8B#
- 1...Bg2
- 2.b8Q#
- 2.b8B#
- 1...Sa1
- 2.b8Q#
- 2.b8B#
- 1...Sce1
- 2.b8Q#
- 2.b8B#
- 1...Se3
- 2.b8Q#
- 2.b8B#
- 1...Sb4
- 2.b8Q#
- 2.b8B#
- 1...Scd4
- 2.Sxc4#
- 2.b8Q#
- 2.b8B#
- 1...Sfe1
- 2.Qxe5#
- 2.b8Q#
- 2.b8B#
- 1...Sd2
- 2.Qxe5#
- 2.b8Q#
- 2.b8B#
- 1...Sh2
- 2.Qxe5#
- 2.b8Q#
- 2.b8B#
- 1...Sfd4
- 2.Sxc4#
- 2.b8Q#
- 2.b8B#
- 1...a2
- 2.b8Q#
- 2.b8B#
- 1...e4
- 2.Sxc4#
- 2.Qf6#
- 2.b8Q#
- 2.b8B#
- 1...g4
- 2.Sxc4#
- 2.b8Q#
- 2.b8B#
- 1...Qxb2!
- threat
- 1.b8Q?
- threat
- 2.Rc8#
- 2.Qb6#
- 1...Sb4
- 2.Rc8#
- 1...Scd4
- 2.Sxc4#
- 2.Rc8#
- 1...Sfe1
- 2.Rc8#
- 2.Qxe5#
- 1...Sd2
- 2.Rc8#
- 2.Qxe5#
- 1...Sh2
- 2.Rc8#
- 2.Qxe5#
- 1...Sfd4
- 2.Sxc4#
- 2.Rc8#
- 1...Qxb2!
- threat
- 1.b8S?
- threat
- 2.Rc6#
- 1...Scd4
- 2.Sxc4#
- 1...Sfe1
- 2.Qxe5#
- 1...Sd2
- 2.Qxe5#
- 1...Sh2
- 2.Qxe5#
- 1...Sfd4
- 2.Sxc4#
- 1...Sb4!
- threat
- 1.Rc8?
- Keys
- 1.Qxc4!
- threat
- 2.Re6#
- 1...Rxc4+
- 2.Sxc4#
- 1...Rh6
- 2.Qa6#
- 1...Scd4
- 2.Qd5#
- 1...Sfd4
- 2.Qxc5#
- threat
- 1.Qxc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- R(b);SBLOCK::R1(G)
- R(i);N_GUARD::S(A),XP(h)
- B(c);S_CUTR(i)::S(A),XP(h)
- S(e);S_CUTR(i)::S(A),XP(h)
- S(g);N_GUARD::QAB1(B),XP(k)
- S(g);S_CUTR(i)::S(A),XP(h)
- P(l);S_CUTR(i)::S(A),XP(h)
- Tries
- Try
- R(E);
- Threat
- P=Q
- Vars
- P(f);XS(A)::P=Q
- Q(a);::P=Q
- R(b);::P=Q
- R(i);::P=Q
- B(c);::P=Q
- B(d);::P=Q
- S(e);::P=Q
- P(f);::P=Q
- Refutation
- Q(a);XS(A)
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- S(e);::QAB(D)+R(E)
- Refutation
- Q(a);XS(A)
- Try
- P(D);
- Threat
- R1(E)
- Vars
- S(e);S_CUTR(i)::S(A),XP(h)
- S(g);N_GUARD::QAB1(B),XP(k)
- S(g);S_CUTR(i)::S(A),XP(h)
- Refutation
- S(e);
- Try
- Actual
- Q(B);P_SPINQ(B),XP(h)
- Threat
- R1(G)
- Vars
- R(i);CHECK,XQ(B)::S(A),XR(i)
- R(i);N_PINQ(B)::QAR(B)
- S(e);N_PINQ(B)::QAR1(B)
- S(g);N_PINQ(B)::QAB1(B),XP(j)
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).