MESON Chess Problem Database
Problem Display
PID: 146078 (5NR1/r1p5/Rb2P3/P3kp1P/K3N1B1/4BP2/5p1r/3Q4 w - - 0 1)
Guida, Marco
The Problemist, 2011
#2
12 + 7
SOLUTION
- SOUND
- Sets
- 1...Bxe3
- 2.Sg6#
- 1...Bd4
- 2.Qxd4#
- 1...Bxa5
- 2.Sg6#
- 2.Sd7#
- 2.Qd4#
- 1...Bc5
- 2.Sg6#
- 2.Sd7#
- 1...fxe4
- 2.Sd7#
- 1...fxg4
- 2.Rg5#
- 1...f4
- 2.Sg6#
- 2.Sd7#
- 2.Rg5#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...Bxe3
- Tries
- 1.Rxb6?
- threat
- 2.Sg6#
- 2.Sd7#
- 2.Qd4#
- 1...fxe4
- 2.Sd7#
- 2.Qd4#
- 1...fxg4
- 2.Rg5#
- 1...cxb6
- 2.Qd4#
- 2.Qd6#
- 1...c5
- 2.Sg6#
- 2.Qd6#
- 1...c6
- 2.Qd4#
- 2.Qd6#
- 1...Rxa5+!
- threat
- 1.Rg6?
- threat
- 2.Sd7#
- 1...fxg4
- 2.Rg5#
- 1...Bd4
- 2.Qxd4#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...Bxe3!
- threat
- 1.Qa1+?
- 1...Bd4
- 2.Qxd4#
- 1...Kd5!
- 1...Bd4
- 1.Qd7?
- threat
- 2.Sg6#
- 1...fxg4
- 2.Rg5#
- 1...fxe4!
- threat
- 1.axb6?
- threat
- 2.Qd4#
- 1...fxg4
- 2.Rg5#
- 1...c5
- 2.Qd6#
- 1...Rxa6+!
- threat
- 1.e7?
- threat
- 2.e8Q#
- 2.e8R#
- 1...Rxh5
- 2.e8Q#
- 2.e8R#
- 1...Rxa6
- 2.e8Q#
- 2.e8R#
- 1...Bxe3
- 2.Sg6#
- 1...Bxa5
- 2.Sg6#
- 2.Sd7#
- 2.Re6#
- 2.Qd4#
- 2.e8Q#
- 2.e8R#
- 1...fxe4
- 2.Sd7#
- 1...fxg4
- 2.Rg5#
- 1...Bd4
- 2.Qxd4#
- 1...f1Q
- 2.e8Q#
- 2.e8R#
- 1...f1S
- 2.e8Q#
- 2.e8R#
- 1...f1B
- 2.e8Q#
- 2.e8R#
- 1...f1R
- 2.e8Q#
- 2.e8R#
- 1...Rh1
- 2.e8Q#
- 2.e8R#
- 1...Rg2
- 2.e8Q#
- 2.e8R#
- 1...Rh3
- 2.e8Q#
- 2.e8R#
- 1...Rh4
- 2.e8Q#
- 2.e8R#
- 1...Rb7
- 2.e8Q#
- 2.e8R#
- 1...Bc5
- 2.Sg6#
- 2.Sd7#
- 2.Re6#
- 1...f4
- 2.Sg6#
- 2.Sd7#
- 2.Rg5#
- 2.e8Q#
- 2.e8R#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...Ra8!
- threat
- 1.Rxb6?
- Keys
- 1.Qd2!
- threat
- 2.Bf4#
- 1...Bxe3
- 2.Sg6#
- 1...fxe4
- 2.Sd7#
- 1...fxg4
- 2.Rg5#
- 1...Bd4
- 2.Qxd4#
- 1...f4
- 2.Sg6#
- 2.Sd7#
- 2.Bxf4#
- 2.Rg5#
- threat
- 1.Qd2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- B(e);XB(B)::S(K)
- B(e);N_GUARD::QAB1(A),XB(e)
- P(d);XS(E)::S(K)
- P(d);OGATEB,XB(F)::R(L)
- P(g);N_GUARD::QAB1(A)
- Tries
- Try
- R(I);P_SPINP(G),XB(e)
- Threat
- DUALS(3)
- Vars
- P(d);OGATEB,XB(F)::R(L)
- Refutation
- R(f);CHECK,XP(G)
- Try
- R(L);
- Threat
- S(K)
- Vars
- P(d);OGATEB,XB(F)::R(L)
- B(e);N_GUARD::QAB1(A),XB(e)
- P(g);N_GUARD::QAB1(A)
- Refutation
- B(e);XB(B)
- Try
- Q(A);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e)::QAB1(A),XB(e)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(A);
- Threat
- S(K)
- Vars
- P(d);OGATEB,XB(F)::R(L)
- Refutation
- P(d);XS(E)
- Try
- P(G);P_SPINR(I),XB(e)
- Threat
- QAB1(A)
- Vars
- P(d);OGATEB,XB(F)::R(L)
- P(g);N_GUARD::QAB1(A)
- Refutation
- R(f);CHECK,XR(I)
- Try
- P(J);
- Threat
- P=Q
- Vars
- R(b);XP(H)::P=Q
- R(f);P_PINP(G),XR(I)::P=Q
- B(e);XB(B)::S(K)
- P(d);XS(E)::S(K)
- P(d);OGATEB,XB(F)::R(L)
- B(e);N_GUARD::QAB1(A),XB(e)
- P(a);::P=Q
- R(b);::P=Q
- R(f);::P=Q
- P(g);N_GUARD::QAB1(A)
- Refutation
- R(f);
- Try
- Actual
- Q(A);
- Threat
- B(B)
- Vars
- B(e);XB(B)::S(K)
- P(d);XS(E)::S(K)
- P(d);OGATEB,XB(F)::R(L)
- B(e);N_GUARD::QAB1(A),XB(e)
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).