MESON Chess Problem Database
Problem Display
PID: 71875 (qbb3Br/1p2Q2p/1pP1n3/2P1kpPn/p6N/K4P2/2P5/2BRN3 w - - 0 1)
Murarasu, Ion
23rd Place, 08. WCCT, 2006-2008
#2
12 + 12
| 14561 | 08. WCCT Award | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bd6
- 2.Qxd6#
- 1...Ba7
- 2.Qd6#
- 1...Sg3
- 2.Qf6#
- 1...Sf4
- 2.Bb2#
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Sg7
- 2.Qf6#
- 1...f4
- 2.Bb2#
- 1...h6
- 2.Sg6#
- 1...Bd6
- Tries
- 1.Bf4+?
- 1...Sxf4
- 2.Qf6#
- 1...Kxf4!
- 1...Sxf4
- 1.Bxe6?
- threat
- 2.Bd7#
- 2.Bxc8#
- 2.Rd5#
- 1...bxc6
- 2.Bd7#
- 2.Bxc8#
- 1...Rd8
- 2.Bd7#
- 2.Bxc8#
- 1...Re8
- 2.Rd5#
- 1...Bd6
- 2.Rd5#
- 2.Qxd6#
- 1...Bd7
- 2.Bxd7#
- 2.Rd5#
- 1...Sf4
- 2.Bb2#
- 2.Qf6#
- 1...Sf6
- 2.Bd7#
- 2.Bxc8#
- 2.Qxf6#
- 1...Sg7
- 2.Rd5#
- 2.Qf6#
- 1...Bxe6!
- threat
- 1.Bxh7?
- threat
- 2.Sg6#
- 1...Sf4
- 2.Bb2#
- 2.Qf6#
- 1...f4
- 2.Bb2#
- 1...Rg8!
- threat
- 1.Rd6?
- threat
- 2.Sd3#
- 1...Bxd6
- 2.Qxd6#
- 1...Sf4
- 2.Bb2#
- 2.Qf6#
- 1...Qa6!
- threat
- 1.Rd7?
- threat
- 2.Sd3#
- 2.Qxe6#
- 1...Rxg8
- 2.Sd3#
- 1...Bd6
- 2.Qxd6#
- 1...Qa6
- 2.Qxe6#
- 1...Sf4
- 2.Bb2#
- 2.Qf6#
- 1...Sg7
- 2.Sd3#
- 2.Qf6#
- 1...Bxd7!
- threat
- 1.Qd8?
- threat
- 2.Sd3#
- 2.Rd5#
- 2.Qd5#
- 1...Sxc5
- 2.Rd5#
- 2.Qd4#
- 2.Qd5#
- 1...Sxg5
- 2.Sd3#
- 2.Rd5#
- 2.Qd4#
- 1...Sxd8
- 2.Rd5#
- 1...bxc6
- 2.Sd3#
- 1...Qa6
- 2.Rd5#
- 2.Qd5#
- 1...Bd6
- 2.Qxd6#
- 1...Shf4
- 2.Qf6#
- 1...Sf6
- 2.Sd3#
- 2.Qxf6#
- 1...Sd4
- 2.Sd3#
- 2.Qxd4#
- 2.Qd5#
- 1...Sef4
- 2.Bb2#
- 2.Qd4#
- 1...Sc7
- 2.Sd3#
- 2.Qd4#
- 2.Qd6#
- 1...Bd7!
- threat
- 1.Qf7?
- threat
- 2.Qxf5#
- 1...Sxc5
- 2.Rd5#
- 2.Qd5#
- 1...Sxg5
- 2.Rd5#
- 1...Sg3
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Shg7
- 2.Qf6#
- 1...Sd4
- 2.Sd3#
- 2.Qd5#
- 1...Sef4
- 2.Bb2#
- 1...Seg7
- 2.Rd5#
- 2.Qd5#
- 1...Sd8
- 2.Rd5#
- 2.Qd5#
- 1...Sf8
- 2.Rd5#
- 2.Qd5#
- 1...f4
- 2.Qf5#
- 1...Sc7!
- threat
- 1.Qg7+?
- 1...Sf6
- 2.Qxf6#
- 1...Sexg7
- 2.Rd5#
- 1...Shxg7!
- 1...Sf6
- 1.Qxh7?
- threat
- 2.Sg6#
- 2.Qxf5#
- 1...Rxh7
- 2.Sg6#
- 1...Rxg8
- 2.Qxf5#
- 1...Sxc5
- 2.Sg6#
- 2.Rd5#
- 1...Sg3
- 2.Sg6#
- 1...Shf4
- 2.Qxf5#
- 1...Shg7
- 2.Sg6#
- 1...Sd4
- 2.Sd3#
- 2.Sg6#
- 1...Sef4
- 2.Bb2#
- 1...Sc7
- 2.Sg6#
- 1...Seg7
- 2.Sg6#
- 2.Rd5#
- 1...Sd8
- 2.Sg6#
- 2.Rd5#
- 1...Sf8
- 2.Rd5#
- 1...f4
- 2.Qe4#
- 2.Qf5#
- 1...Sxg5!
- threat
- 1.c4?
- threat
- 2.Rd5#
- 1...Sf4
- 2.Bb2#
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...bxc6!
- threat
- 1.Bf4+?
- Keys
- 1.Qf8!
- threat
- 2.Qxf5#
- 1...Sxc5
- 2.Rd5#
- 1...Sxg5
- 2.Rd5#
- 1...Sxf8
- 2.Rd5#
- 1...Sg3
- 2.Qf6#
- 1...Sf6
- 2.Qxf6#
- 1...Shg7
- 2.Qf6#
- 1...Sd4
- 2.Sd3#
- 1...Sef4
- 2.Bb2#
- 1...Sc7
- 2.Qd6#
- 1...Seg7
- 2.Rd5#
- 1...Sd8
- 2.Rd5#
- 1...f4
- 2.Qf5#
- threat
- 1.Qf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 8
- REMOVED MATES = 3
- Sets
- B(j);N_GUARD,P_PINP(H)::QAB1(K),XB(j)
- B(j);N_GUARD::QAB1(K)
- S(d);N_GUARD::QAB1(K)
- S(d);N_GUARD::QAB1(K),XS(d)
- P(c);SBLOCK::B(A)
- P(h);N_GUARD::S(G)
- Tries
- Try
- B(A);CHECK
- Vars
- S(d);SBLOCK,XB(A)::QAB1(K)
- Refutation
- K(b);N_SPINS(f),S_FLIGHT,XB(A)
- Try
- B(L);XS(f)
- Threat
- DUALS(3)
- Vars
- R(l);::R1(B)
- Refutation
- B(k);P_SPINB(k),XB(L)
- Try
- B(L);XP(h)
- Threat
- S(G)
- Vars
- P(c);SBLOCK::B(A)
- Refutation
- R(l);
- Try
- R(B);
- Threat
- S(C)
- Vars
- B(j);OGATE,P_PINP(H),XR(B)::QAB1(K),XB(j)
- Refutation
- Q(i);
- Try
- R(B);
- Threat
- DUALS(2)
- Vars
- R(l);XB(L)::S(C)
- B(j);N_GUARD,P_PINP(H)::QAB1(K),XB(j)
- Q(i);::QAR1(K),XS(f)
- Refutation
- B(k);XR(B)
- Try
- Q(K);N_PINS(f)
- Threat
- DUALS(3)
- Vars
- S(f);XQ(K)::R1(B)
- P(g);XP(J)::S(C)
- B(j);N_GUARD,P_PINP(H)::QAB1(K),XB(j)
- S(d);N_GUARD::QAB1(K)
- Refutation
- B(k);
- Try
- Q(K);N_PINS(f)
- Threat
- QAR1(K),XP(c)
- Vars
- S(f);XP(I)::R1(B)
- S(d);N_GUARD::QAB1(K)
- S(d);N_GUARD::QAB1(K),XS(d)
- S(f);N_GUARD,SBLOCK::B(A)
- P(c);::QAR1(K)
- Refutation
- S(f);
- Try
- Q(K);CHECK,N_PINS(f)
- Vars
- S(d);N_GUARD,P_SPINS(d)::QAB1(K),XS(d)
- S(f);XQ(K)::R1(B)
- Refutation
- S(d);XQ(K)
- Try
- Q(K);N_PINS(f),XP(h)
- Threat
- DUALS(2)
- Vars
- R(l);XQ(K)::S(G)
- R(l);XB(L)::QAR1(K),XP(c)
- S(d);::S(G)
- S(d);::QAR1(K),XP(c)
- S(f);N_GUARD,SBLOCK::B(A)
- S(f);::S(G)
- S(f);::R1(B)
- Refutation
- S(f);XP(I)
- Try
- P(D);
- Threat
- R1(B)
- Vars
- S(d);N_GUARD::QAB1(K),XS(d)
- Refutation
- P(g);XP(J)
- Try
- Actual
- Q(K);N_PINS(f)
- Threat
- QAR1(K),XP(c)
- Vars
- S(f);XP(H)::R1(B)
- S(f);XP(I)::R1(B)
- S(f);XQ(K)::R1(B)
- S(d);N_GUARD::QAB1(K)
- S(d);N_GUARD::QAB1(K),XS(d)
- S(f);SBLOCK::S(C)
- S(f);N_GUARD,SBLOCK::B(A)
- S(f);S_CUTB(j)::QAB1(K)
- S(f);::R1(B)
- P(c);::QAR1(K)
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).