MESON Chess Problem Database
Problem Display
PID: 149273 (3rRB1K/Np1k1P1n/1P3P2/3N3R/6p1/3P1Qnb/B1p2r2/1q6 w - - 0 1)
Burda, Josef
Comm., Mariani-50 JT, 2011
#2
12 + 10
| 4901 | Best Problems | 2011 |
| 15148 | Sadier Collection | 2013 |
SOLUTION
- SOUND
- Sets
- 1...Sxf6
- 2.Sxf6#
- 1...Sxf6
- Tries
- 1.Sc3?
- threat
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 2.Qxb7#
- 1...Qxa2
- 2.Qxb7#
- 1...Rxf3
- 2.Be6#
- 2.Rd5#
- 1...Rxe8
- 2.Qd5#
- 1...Sxh5
- 2.Be6#
- 2.Qd5#
- 2.Qxb7#
- 1...Sxf6
- 2.Be6#
- 2.Qxb7#
- 1...Sxf8
- 2.Rd5#
- 2.Qd5#
- 1...gxf3
- 2.Rd5#
- 1...Qe1
- 2.Rd5#
- 2.Qd5#
- 2.Qxb7#
- 1...Qh1
- 2.Be6#
- 2.Rd5#
- 1...Qb3
- 2.Qxb7#
- 1...Qb4
- 2.Be6#
- 2.Qxb7#
- 1...Qb5
- 2.Be6#
- 2.Qxb7#
- 1...Re2
- 2.Rd5#
- 2.Qd5#
- 2.Qxb7#
- 1...Rb8
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...Rc8
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...Bg2
- 2.Be6#
- 2.Rd5#
- 1...Se4
- 2.Be6#
- 1...Sf5
- 2.Be6#
- 2.Qxb7#
- 1...Sg5
- 2.Qd5#
- 2.Qxb7#
- 1...Qxb6!
- threat
- 1.Se3?
- threat
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 2.Qxb7#
- 1...Qxa2
- 2.Qxb7#
- 1...Rxf3
- 2.Be6#
- 2.Rd5#
- 1...Rxe8
- 2.Qd5#
- 1...Sxh5
- 2.Be6#
- 2.Qd5#
- 2.Qxb7#
- 1...Sxf6
- 2.Be6#
- 2.Qxb7#
- 1...Sxf8
- 2.Rd5#
- 2.Qd5#
- 1...gxf3
- 2.Rd5#
- 1...c1Q
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...c1R
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...Qh1
- 2.Be6#
- 2.Rd5#
- 1...Qb3
- 2.Qxb7#
- 1...Qb4
- 2.Be6#
- 2.Qxb7#
- 1...Qb5
- 2.Be6#
- 2.Qxb7#
- 1...Rb8
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...Rc8
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...Bg2
- 2.Be6#
- 2.Rd5#
- 1...Se4
- 2.Be6#
- 1...Sf5
- 2.Be6#
- 2.Qxb7#
- 1...Sg5
- 2.Qd5#
- 2.Qxb7#
- 1...Qxb6!
- threat
- 1.Sf4?
- threat
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 2.Qxb7#
- 1...Qxa2
- 2.Qxb7#
- 1...Rxf3
- 2.Be6#
- 2.Rd5#
- 1...Rxe8
- 2.Rd5#
- 2.Qd5#
- 1...Sxh5
- 2.Be6#
- 2.Qd5#
- 2.Qxb7#
- 1...Sxf6
- 2.Be6#
- 2.Qxb7#
- 1...Sxf8
- 2.Rd5#
- 2.Qd5#
- 1...gxf3
- 2.Rd5#
- 1...c1Q
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...c1R
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...Qe1
- 2.Rd5#
- 2.Qd5#
- 2.Qxb7#
- 1...Qh1
- 2.Be6#
- 2.Rd5#
- 1...Qb3
- 2.Qxb7#
- 1...Qb4
- 2.Be6#
- 2.Qxb7#
- 1...Qb5
- 2.Be6#
- 2.Qxb7#
- 1...Re2
- 2.Rd5#
- 2.Qd5#
- 2.Qxb7#
- 1...Rb8
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...Rc8
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...Bg2
- 2.Be6#
- 2.Rd5#
- 1...Se4
- 2.Be6#
- 1...Sf5
- 2.Be6#
- 2.Qxb7#
- 1...Sg5
- 2.Qd5#
- 2.Qxb7#
- 1...Qxb6!
- threat
- 1.Rxd8+?
- 1...Ke6
- 2.Sc7#
- 1...Kxd8!
- 1...Ke6
- 1.Qxg3?
- threat
- 2.Re7#
- 2.Qd6#
- 2.Qc7#
- 1...Qxb6
- 2.Sxb6#
- 2.Re7#
- 1...Rxf6
- 2.Re7#
- 2.Qc7#
- 1...Rxe8
- 2.Qd6#
- 1...Sxf8
- 2.Re7#
- 2.Qc7#
- 1...c1Q
- 2.Re7#
- 2.Qd6#
- 1...c1R
- 2.Re7#
- 2.Qd6#
- 1...Re2
- 2.Qd6#
- 2.Qc7#
- 1...Qe1
- 2.Qd6#
- 2.Qc7#
- 1...Qb4
- 2.Qc7#
- 1...Ra8
- 2.Qd6#
- 2.Qc7#
- 1...Rb8
- 2.Qd6#
- 2.Qc7#
- 1...Rc8
- 2.Qd6#
- 1...Rf4!
- threat
- 1.Qf4?
- threat
- 2.Re7#
- 2.Qd6#
- 2.Qc7#
- 1...Qxb6
- 2.Sxb6#
- 2.Re7#
- 1...Rxe8
- 2.Qd6#
- 1...Sxf8
- 2.Re7#
- 2.Qc7#
- 1...c1Q
- 2.Re7#
- 2.Qd6#
- 1...c1R
- 2.Re7#
- 2.Qd6#
- 1...Re2
- 2.Qd6#
- 2.Qc7#
- 1...Qe1
- 2.Qd6#
- 2.Qc7#
- 2.Qa4#
- 1...Qb4
- 2.Qc7#
- 1...Ra8
- 2.Qd6#
- 2.Qc7#
- 1...Rb8
- 2.Qd6#
- 2.Qc7#
- 1...Rc8
- 2.Qd6#
- 1...Se4
- 2.Re7#
- 2.Qc7#
- 1...Sf5
- 2.Qc7#
- 1...Rxf4!
- threat
- 1.Sc3?
- Keys
- 1.Sb4!
- threat
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 2.Qxb7#
- 1...Qxa2
- 2.Qxb7#
- 1...Qxb4
- 2.Be6#
- 2.Qxb7#
- 1...Rxf3
- 2.Be6#
- 2.Rd5#
- 1...Rxe8
- 2.Qd5#
- 1...Sxh5
- 2.Be6#
- 2.Qd5#
- 2.Qxb7#
- 1...Sxf6
- 2.Be6#
- 2.Qxb7#
- 1...Sxf8
- 2.Rd5#
- 2.Qd5#
- 1...gxf3
- 2.Rd5#
- 1...c1Q
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...c1R
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...Qe1
- 2.Rd5#
- 2.Qd5#
- 2.Qxb7#
- 1...Qh1
- 2.Be6#
- 2.Rd5#
- 1...Qb3
- 2.Qxb7#
- 1...Re2
- 2.Rd5#
- 2.Qd5#
- 2.Qxb7#
- 1...Rb8
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...Rc8
- 2.Be6#
- 2.Rd5#
- 2.Qd5#
- 1...Bg2
- 2.Be6#
- 2.Rd5#
- 1...Se4
- 2.Be6#
- 1...Sf5
- 2.Be6#
- 2.Qxb7#
- 1...Sg5
- 2.Qd5#
- 2.Qxb7#
- threat
- 1.Sb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
- Sets
- S(i);XP(G)::S(D),XS(i)
- Tries
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- Q(a);XB(A)::QAR2(C),XP(g)
- R(j);P_PINB(K),XR(J)::QAR2(C)
- P(f);XQ(C)::R(E)
- Q(a);::QAR2(C),XP(g)
- S(d);::B(A)
- Refutation
- Q(a);XP(F)
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- Q(a);XB(A)::QAR2(C),XP(g)
- R(j);P_PINB(K),XR(J)::QAR2(C)
- P(f);XQ(C)::R(E)
- Q(a);::QAR2(C),XP(g)
- S(d);::B(A)
- Refutation
- Q(a);XP(F)
- Try
- S(D);
- Threat
- DUALS(4)
- Vars
- Q(a);XB(A)::QAR2(C),XP(g)
- P(f);XQ(C)::R(E)
- Q(a);::QAR2(C),XP(g)
- S(d);::B(A)
- Refutation
- Q(a);XP(F)
- Try
- R(J);CHECK,XR(j)
- Vars
- K(h);S_FLIGHT::B(A)+S(D),DCHECK
- Refutation
- K(h);P-FLIGHT,XR(J)
- Try
- Q(C);XS(d)
- Threat
- DUALS(3)
- Vars
- R(j);P_PINB(K),XR(J)::QAR1(C)
- Q(a);::QAR1(C)
- R(j);::QAR1(C)
- Refutation
- R(c);
- Try
- Q(C);
- Threat
- DUALS(3)
- Vars
- R(j);P_PINB(K),XR(J)::QAR1(C)
- Q(a);::QAR1(C)
- R(j);::QAR1(C)
- S(d);::QAR1(C)
- Refutation
- R(c);XQ(C)
- Try
- Actual
- S(D);
- Threat
- DUALS(4)
- Vars
- Q(a);XB(A)::QAR2(C),XP(g)
- R(j);P_PINB(K),XR(J)::QAR2(C)
- P(f);XQ(C)::R(E)
- Q(a);::QAR2(C),XP(g)
- S(d);::B(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).