MESON Chess Problem Database
Problem Display
PID: 232515 (2R2B2/p2N2Q1/p1nq4/4pB2/bP1k1Pp1/1PN2n1R/1K3P2/8 w - - 0 1)
Groth, Reinhard
Freie Presse, 1997
#2
12 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qc5
- 2.Bxc5#
- 1...Qc7
- 2.Bc5#
- 1...Qb8
- 2.Bc5#
- 1...Qd5
- 2.Se2#
- 1...Qe6
- 2.Bc5#
- 1...Qf6
- 2.Bc5#
- 1...Qg6
- 2.Bc5#
- 1...Qh6
- 2.Bc5#
- 1...Qxd7
- 2.Bc5#
- 2.Qxd7#
- 1...Sg1
- 2.Rd3#
- 1...Sd2
- 2.Rd3#
- 1...Sh2
- 2.Rd3#
- 1...Sh4
- 2.Rd3#
- 1...Sg5
- 2.Rd3#
- 1...Sxb4
- 2.Rc4#
- 1...Se7
- 2.Rc4#
- 1...Sb8
- 2.Rc4#
- 1...Sd8
- 2.Rc4#
- 1...Qc5
- Tries
- 1.Sxe5?
- threat
- 2.Sxf3#
- 2.Sxc6#
- 1...Qxe5
- 2.Bc5#
- 1...Sfxe5
- 2.Rd3#
- 1...Sxb4
- 2.Sxf3#
- 2.Rc4#
- 1...Scxe5
- 2.Rc4#
- 1...Qf6
- 2.Bc5#
- 1...Se1
- 2.Sf3#
- 2.Sxc6#
- 1...Sg1
- 2.Sf3#
- 2.Sxc6#
- 2.Rd3#
- 1...Sd2
- 2.Sf3#
- 2.Sxc6#
- 2.Rd3#
- 1...Sh2
- 2.Sf3#
- 2.Sxc6#
- 2.Rd3#
- 1...Sh4
- 2.Sf3#
- 2.Sxc6#
- 2.Rd3#
- 1...Sg5
- 2.Sf3#
- 2.Sxc6#
- 2.Rd3#
- 1...Sa5
- 2.Sxf3#
- 2.Sc6#
- 1...Se7
- 2.Sxf3#
- 2.Sc6#
- 2.Rc4#
- 1...Sb8
- 2.Sxf3#
- 2.Sc6#
- 2.Rc4#
- 1...Sd8
- 2.Sxf3#
- 2.Sc6#
- 2.Rc4#
- 1...Bxb3!
- threat
- 1.Qf7?
- threat
- 2.Se2#
- 2.Qc4#
- 1...Qxb4
- 2.Se2#
- 2.Qd5#
- 1...Bxb3
- 2.Se2#
- 1...e4
- 2.Qc4#
- 1...Qc5
- 2.Se2#
- 2.Bxc5#
- 1...Qd5
- 2.Se2#
- 2.Qxd5#
- 1...Qe6
- 2.Bc5#
- 1...Sg1
- 2.Rd3#
- 2.Qc4#
- 1...Sd2
- 2.Se2#
- 2.Rd3#
- 1...Sa5
- 2.Se2#
- 1...Bb5!
- threat
- 1.Qg8?
- threat
- 2.Se2#
- 2.Qc4#
- 1...Qxb4
- 2.Se2#
- 2.Qd5#
- 1...Bxb3
- 2.Se2#
- 1...e4
- 2.Qc4#
- 1...Qc5
- 2.Se2#
- 2.Bxc5#
- 1...Qd5
- 2.Se2#
- 2.Qxd5#
- 1...Qe6
- 2.Bc5#
- 1...Sg1
- 2.Rd3#
- 2.Qc4#
- 1...Sd2
- 2.Se2#
- 2.Rd3#
- 1...Sa5
- 2.Se2#
- 1...Bb5!
- threat
- 1.Sxe5?
- Keys
- 1.fxe5!
- threat
- 2.Qxg4#
- 1...Qxe5
- 2.Bc5#
- 1...Qxd7
- 2.Bc5#
- 1...Sfxe5
- 2.Rd3#
- 1...Scxe5
- 2.Rc4#
- 1...gxh3
- 2.Qg4#
- 1...Qd5
- 2.Se2#
- 1...Qg6
- 2.Bc5#
- 1...Qh6
- 2.Bc5#
- 1...Sd2
- 2.Rd3#
- 1...Sh2
- 2.Rd3#
- 1...Sg5
- 2.Rd3#
- 1...g3
- 2.Qg4#
- threat
- 1.fxe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 6
- REMOVED MATES = 11
- Sets
- Q(h);OGATE::B(L),XQ(h)
- Q(h);OGATE::B(L)
- Q(h);SBLOCK::S(D)
- Q(h);N_SPINP(e),OGATE::B(L)
- S(a);OGATE::R1(E)
- S(g);OGATE,XP(F)::R1(K)
- S(g);OGATE::R1(K)
- Tries
- Try
- S(I);XP(e)
- Threat
- DUALS(2)
- Vars
- Q(h);OGATE,P_SPINQ(h),XS(I)::B(L)
- S(a);OGATE,P_SPINS(a),XS(I)::R1(E)
- S(g);OGATE,P_SPINS(g),XS(I)::R1(K)
- Q(h);OGATE::B(L)
- Refutation
- B(b);XP(C)
- Try
- Q(J);N_PINP(e)
- Threat
- DUALS(2)
- Vars
- B(b);XP(C)::S(D)
- P(e);::QAR1(J)
- Q(h);OGATE::B(L)
- S(g);::S(D)
- Refutation
- B(b);
- Try
- Q(J);N_PINP(e)
- Threat
- DUALS(2)
- Vars
- B(b);XP(C)::S(D)
- P(e);::QAR1(J)
- Q(h);OGATE::B(L)
- S(g);::S(D)
- Refutation
- B(b);
- Try
- Actual
- P(G);XP(e)
- Threat
- QAR(J),XP(d)
- Vars
- Q(h);OGATE,P_SPINQ(h),XP(G)::B(L)
- Q(h);OGATE,XS(I)::B(L)
- S(a);OGATE,P_SPINS(a),XP(G)::R1(E)
- S(g);OGATE,P_SPINS(g),XP(G)::R1(K)
- P(d);XR(E)::QAR(J)
- Q(h);SBLOCK::S(D)
- Q(h);OGATE::B(L)
- S(a);OGATE::R1(E)
- P(d);::QAR(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).