MESON Chess Problem Database
Problem Display
PID: 255032 (8/P3R3/1B1p2N1/1B1k4/2Nr2P1/r2b1R1K/6P1/3Qn1b1 w - - 0 1)
Guida, Marco
Sinfonie Scacchistiche, 1983
#2
11 + 7
| 15601 | Albrecht-Leiss-Degener Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rb3
- 2.a8Q#
- 2.a8B#
- 1...Rc3
- 2.a8Q#
- 2.a8B#
- 1...Rxc4
- 2.Rf5#
- 1...Rf4
- 2.Sxf4#
- 1...Rxg4
- 2.Rf5#
- 1...Bh2
- 2.Se3#
- 1...Be3
- 2.Sxe3#
- 1...Bb1
- 2.Sf4#
- 1...Bf1
- 2.Sf4#
- 1...Bc2
- 2.Sf4#
- 1...Be2
- 2.Sf4#
- 1...Bxc4
- 2.Sf4#
- 1...Be4
- 2.Sf4#
- 1...Bf5
- 2.Sf4#
- 1...Rb3
- Tries
- 1.Sxa3?
- threat
- 2.a8Q#
- 2.a8B#
- 1...Rxg4
- 2.Rf5#
- 2.a8Q#
- 2.a8B#
- 1...Bxg6
- 2.a8Q#
- 2.a8B#
- 1...Sxg2
- 2.a8Q#
- 2.a8B#
- 1...Sxf3
- 2.a8Q#
- 2.a8B#
- 1...Ra4
- 2.Rf5#
- 1...Rb4
- 2.Rf5#
- 2.a8Q#
- 2.a8B#
- 1...Rc4
- 2.Rf5#
- 1...Re4
- 2.a8Q#
- 2.a8B#
- 1...Rf4
- 2.Sxf4#
- 2.a8Q#
- 2.a8B#
- 1...Bf2
- 2.a8Q#
- 2.a8B#
- 1...Bh2
- 2.a8Q#
- 2.a8B#
- 1...Be3
- 2.a8Q#
- 2.a8B#
- 1...Bb1
- 2.Sf4#
- 2.a8Q#
- 2.a8B#
- 1...Bf1
- 2.Sf4#
- 2.Rf5#
- 2.a8Q#
- 2.a8B#
- 1...Bc2
- 2.Sf4#
- 2.a8Q#
- 2.a8B#
- 1...Be2
- 2.Sf4#
- 2.Rf5#
- 2.a8Q#
- 2.a8B#
- 1...Bc4
- 2.Sf4#
- 2.Rf5#
- 2.a8Q#
- 2.a8B#
- 1...Be4
- 2.Sf4#
- 2.a8Q#
- 2.a8B#
- 1...Bf5
- 2.Sf4#
- 2.Rxf5#
- 2.a8Q#
- 2.a8B#
- 1...Sc2
- 2.a8Q#
- 2.a8B#
- 1...Bxb5!
- threat
- 1.Qxd3?
- threat
- 2.Sf4#
- 2.Rf5#
- 2.Qf5#
- 1...Raxd3
- 2.a8Q#
- 2.a8B#
- 1...Rdxd3
- 2.Sf4#
- 1...Sxg2
- 2.Rf5#
- 2.Qf5#
- 1...Sxf3
- 2.Sf4#
- 1...Bh2
- 2.Se3#
- 2.Qxd4#
- 1...Be3
- 2.Sxe3#
- 2.Rf5#
- 2.Qf5#
- 1...Sxd3!
- threat
- 1.Sxa3?
- Keys
- 1.Qb3!
- threat
- 2.Se3#
- 1...Rxb3
- 2.a8Q#
- 2.a8B#
- 1...Rxc4
- 2.Sf4#
- 1...Bxc4
- 2.Rf5#
- 1...Be3
- 2.Sxe3#
- threat
- 1.Qb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 9
- Sets
- R(c);N_GUARD::P=Q
- R(e);P_SPINB(d),XS(E)::R(C)
- R(e);N_GUARD,P_SPINB(d)::S(I),XR(e)
- R(e);P_SPINB(d),XP(F)::R(C)
- B(b);N_GUARD::S(E)
- B(b);N_GUARD::S(E),XB(b)
- B(d);P_PINR(C),P_SPINR(e)::S(I)
- B(d);P_PINP(B),P_PINR(C),P_SPINR(e)::S(I)
- B(d);P_PINR(C),P_SPINR(e),XS(E)::S(I)
- B(d);P_PINP(F),P_PINR(C),P_SPINR(e)::S(I)
- Tries
- Try
- S(E);XR(c)
- Threat
- P=Q
- Vars
- B(d);P_SPINR(e),XS(I)::P=Q
- S(a);XP(B)::P=Q
- S(a);XR(C)::P=Q
- R(e);P_SPINB(d)::R(C)
- R(e);P_SPINB(d)::P=Q
- B(b);::P=Q
- S(a);::P=Q
- Refutation
- B(d);P_SPINR(e),XB(G)
- Try
- Q(A);P_PINR(e),XB(d)
- Threat
- DUALS(3)
- Vars
- R(c);N_GUARD,N_SPINR(e),P_PINR(C),XQ(A)::P=Q
- R(e);N_SPINR(e),P_PINR(C),XQ(A)::S(I)
- S(a);XR(C)::S(I)
- Refutation
- S(a);N_SPINR(e),XQ(A)
- Try
- Actual
- Q(A);
- Threat
- QAB(A)+S(E),DCHECK
- Vars
- R(c);N_GUARD,XQ(A)::P=Q
- R(e);N_GUARD,P_SPINR(e),XS(E)::S(I)
- B(d);N_GUARD,P_SPINB(d),XS(E)::R(C)
- B(b);::QAB(A)+S(E),DCHECK,XB(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).