MESON Chess Problem Database
Problem Display
PID: 232192 (2nR4/6p1/1PNr1P2/1P1kNP2/1Prb1P2/7p/qB2Q3/3RnK2 w - - 0 1)
Berg, Wolfgang
Freie Presse, 2002
#2
13 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Rxd4#
- 1...Rc2
- 2.Rxd4#
- 1...Rc3
- 2.Rxd4#
- 1...Rc5
- 2.Rxd4#
- 1...Rxc6
- 2.Rxd4#
- 1...Sc2
- 2.Qf3#
- 1...Sg2
- 2.Qf3#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 1...Sxb6
- 2.Se7#
- 1...Sa7
- 2.Se7#
- 1...Se7
- 2.Sxe7#
- 1...Rc1
- Tries
- 1.Sd3?
- threat
- 2.Qe6#
- 1...Be5
- 2.Qxe5#
- 1...Be3!
- threat
- 1.Sf3?
- threat
- 2.Qe5#
- 2.Qe6#
- 1...Rxc6
- 2.Rxd4#
- 2.Qe6#
- 1...Sxf3
- 2.Qxf3#
- 2.Qe6#
- 1...gxf6
- 2.Qe6#
- 1...Rc1
- 2.Rxd4#
- 2.Qe6#
- 1...Rc2
- 2.Rxd4#
- 2.Qe6#
- 1...Rc3
- 2.Rxd4#
- 2.Qe6#
- 1...Rc5
- 2.Rxd4#
- 2.Qe6#
- 1...Sd3
- 2.Qe6#
- 1...Rxb4!
- threat
- 1.Sxc4?
- threat
- 2.Rxd4#
- 2.Qe6#
- 1...Qxb2
- 2.Qe6#
- 1...Sd3
- 2.Qe6#
- 1...Sc2
- 2.Qe6#
- 1...Sf3
- 2.Qe6#
- 1...Qxc4!
- threat
- 1.Sg4?
- threat
- 2.Qe5#
- 2.Qe6#
- 1...Rxc6
- 2.Rxd4#
- 2.Qe6#
- 1...gxf6
- 2.Sxf6#
- 2.Qe6#
- 1...Rc1
- 2.Rxd4#
- 2.Qe6#
- 1...Rc2
- 2.Rxd4#
- 2.Qe6#
- 1...Rc3
- 2.Rxd4#
- 2.Qe6#
- 1...Rc5
- 2.Rxd4#
- 2.Qe6#
- 1...Sd3
- 2.Qf3#
- 2.Qe6#
- 1...Sf3
- 2.Qxf3#
- 2.Qe6#
- 1...Rxb4!
- threat
- 1.Sg6?
- threat
- 2.Qe5#
- 2.Qe6#
- 1...Rxc6
- 2.Rxd4#
- 2.Qe6#
- 1...gxf6
- 2.Qe6#
- 1...Rc1
- 2.Rxd4#
- 2.Qe6#
- 1...Rc2
- 2.Rxd4#
- 2.Qe6#
- 1...Rc3
- 2.Rxd4#
- 2.Qe6#
- 1...Rc5
- 2.Rxd4#
- 2.Qe6#
- 1...Sd3
- 2.Qf3#
- 2.Qe6#
- 1...Sf3
- 2.Qxf3#
- 2.Qe6#
- 1...Rxb4!
- threat
- 1.Sf7?
- threat
- 2.Qe5#
- 2.Qe6#
- 1...Rxc6
- 2.Rxd4#
- 2.Qe6#
- 1...gxf6
- 2.Qe6#
- 1...Rc1
- 2.Rxd4#
- 2.Qe6#
- 1...Rc2
- 2.Rxd4#
- 2.Qe6#
- 1...Rc3
- 2.Rxd4#
- 2.Qe6#
- 1...Rc5
- 2.Rxd4#
- 2.Qe6#
- 1...Sd3
- 2.Qf3#
- 2.Qe6#
- 1...Sf3
- 2.Qxf3#
- 2.Qe6#
- 1...Rxb4!
- threat
- 1.Rxd6+?
- 1...Sxd6
- 2.Se7#
- 1...Kxd6!
- 1...Sxd6
- 1.Sd3?
- Keys
- 1.Sd7!
- threat
- 2.Qe5#
- 1...Rxb4
- 2.Sxb4#
- 1...Rcxc6
- 2.Rxd4#
- 1...gxf6
- 2.Sxf6#
- 1...Re6
- 2.Qxe6#
- 1...Rc1
- 2.Rxd4#
- 1...Rc2
- 2.Rxd4#
- 1...Rc3
- 2.Rxd4#
- 1...Rc5
- 2.Rxd4#
- 1...Sd3
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- threat
- 1.Sd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- R(d);N_GUARD::R1(A),XB(e)
- R(d);N_GUARD,XS(K)::R1(A),XB(e)
- S(a);N_GUARD::QAB(D)
- S(a);N_GUARD,N_SPINB(e)::QAB(D)
- S(a);N_GUARD::QAB(D),XS(a)
- S(i);N_GUARD,XP(J)::S(K)
- S(i);N_GUARD::S(K)
- S(i);N_GUARD::S(K),XS(i)
- Tries
- Try
- S(H);N_PINB(e)
- Threat
- QAB1(D)
- Vars
- B(e);N_GUARD::QAR1(D),XB(e)
- Refutation
- B(e);
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- P(h);XP(L)::QAB1(D)
- S(a);N_SPINB(e)::QAB1(D)
- Refutation
- R(d);XP(E)
- Try
- S(H);XR(d)
- Threat
- DUALS(2)
- Vars
- Q(b);XB(C)::QAB1(D)
- S(a);N_SPINB(e)::QAB1(D)
- S(a);::QAB1(D)
- Refutation
- Q(b);P_PINQ(D),XS(H)
- Try
- S(H);
- Threat
- DUALS(2)
- Refutation
- R(d);XP(E)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- P(h);XP(L)::QAB1(D)
- Refutation
- R(d);XP(E)
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- P(h);XP(L)::QAB1(D)
- Refutation
- R(d);XP(E)
- Try
- R(M);CHECK,XR(g)
- Vars
- S(i);SBLOCK,XR(M)::S(K)
- Refutation
- K(f);P-FLIGHT,XR(M)
- Try
- Actual
- S(H);N_PINR(g)
- Threat
- QAR1(D)
- Vars
- R(d);XP(E)::S(K),XR(d)
- R(d);N_GUARD,XS(K)::R1(A),XB(e)
- P(h);XP(L)::S(H),XP(h)
- R(g);N_GUARD::QAB1(D),XR(g)
- R(d);N_GUARD::R1(A),XB(e)
- S(a);N_GUARD,N_SPINB(e)::QAB(D)
- S(a);N_GUARD::QAB(D),XS(a)
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).