MESON Chess Problem Database
Problem Display
PID: 203745 (5K2/1Bp5/7n/2PbN1P1/Rb2kP2/2p3PQ/1q1pPBp1/8 w - - 0 1)
Dulcu, George
Revista Romana de Sah, 1949
#2
11 + 9
| 15148 | Sadier Collection | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Qa1
- 2.Rxb4#
- 1...Qc1
- 2.Rxb4#
- 1...Qc2
- 2.Rxb4#
- 1...Bc6
- 2.Bxc6#
- 1...Sg4
- 2.Qh7#
- 1...Sf5
- 2.Qxg2#
- 1...Sf7
- 2.Qh7#
- 1...Sg8
- 2.Qh7#
- 1...Qa1
- Tries
- 1.Sd7?
- threat
- 2.Sf6#
- 2.Qe6#
- 1...Sg4
- 2.Qh7#
- 1...Sf5
- 2.Sf6#
- 2.Qxg2#
- 1...Sf7
- 2.Sf6#
- 2.Qh7#
- 1...Sg8
- 2.Qe6#
- 2.Qh7#
- 1...c6
- 2.Sf6#
- 1...c2!
- threat
- 1.Sf7?
- threat
- 2.Qe6#
- 1...Sxf7
- 2.Qh7#
- 1...Sg4
- 2.Qh7#
- 1...Sf5
- 2.Qxg2#
- 1...c6
- 2.Sd6#
- 1...c2!
- threat
- 1.Qe6?
- threat
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Bxd5#
- 1...Bxb7
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...d1Q
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...d1R
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...c2
- 2.Bxd5#
- 1...Qa2
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Qb3
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Bc6
- 2.Sd3#
- 2.Sf3#
- 2.Sc4#
- 2.Sg4#
- 2.Sxc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 2.Bxc6#
- 1...Sg4
- 2.Sxg4#
- 2.Bxd5#
- 2.Qg6#
- 1...Sf7
- 2.Sxf7#
- 2.Bxd5#
- 2.Qg6#
- 1...c6!
- threat
- 1.g4?
- threat
- 2.Qe3#
- 2.Qf3#
- 1...Kxf4
- 2.Qe3#
- 1...Bxb7
- 2.Qf3#
- 1...Bc6
- 2.Qf3#
- 1...d1S
- 2.Qf3#
- 1...g1S
- 2.Qe3#
- 1...Sf5
- 2.Qf3#
- 1...Sxg4!
- threat
- 1.Sd7?
- Keys
- 1.Sc4!
- threat
- 2.Qe6#
- 1...Bxc5+
- 2.Sd6#
- 1...Sg4
- 2.Qh7#
- 1...c6
- 2.Sd6#
- 1...Sf5
- 2.Qxg2#
- 1...Sf7
- 2.Qh7#
- 1...c2
- 2.Sxd2#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 5
- Sets
- Q(a);N_GUARD::R(E),XB(e)
- B(g);OGATEB::B(J),XB(g)
- S(h);OGATE::QAB(D)
- S(h);SBLOCK::QAB(D),XP(c)
- Tries
- Try
- S(H);
- Threat
- DUALS(2)
- Vars
- S(h);OGATE::QAB(D)
- P(i);::S(H)
- Refutation
- P(d);
- Try
- S(H);
- Threat
- QAR2(D)
- Vars
- S(h);OGATE,XS(H)::QAB(D)
- S(h);OGATE::QAB(D)
- S(h);SBLOCK::QAB(D),XP(c)
- P(i);N_GUARD::S(H)
- Refutation
- P(d);
- Try
- Q(D);
- Threat
- DUALS(8)
- Vars
- P(d);::B(J),XB(g)
- Refutation
- P(i);
- Try
- P(C);
- Threat
- DUALS(2)
- Vars
- K(f);P-FLIGHT,XP(F)::QAB1(D)
- B(g);XB(J)::QAB1(D)
- B(g);::QAB1(D)
- P(b);::QAB1(D)
- P(c);::QAR1(D)
- S(h);::QAB1(D)
- Refutation
- S(h);XP(C)
- Try
- Actual
- S(H);N_PINB(e),P_PINB(g)
- Threat
- QAR2(D)
- Vars
- B(e);CHECK,XP(G)::R(E)+S(H),DCHECK
- S(h);OGATE::QAB(D)
- P(i);N_GUARD,N_SPINB(g)::S(H)
- S(h);SBLOCK::QAB(D),XP(c)
- P(d);N_GUARD,S_CUTQ(a)::S(H),XP(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).