MESON Chess Problem Database
Problem Display
PID: 87819 (3r4/2p5/4R2p/n1pkN1NQ/B3RB2/8/4P1b1/3K4 w - - 0 1)
Stan, Mihail
Buletin Problemistic, 1973
#2
9 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sb3
- 2.Bc6#
- 1...Sc4
- 2.Bc6#
- 1...Sc6
- 2.Bxc6#
- 1...Sb7
- 2.Bc6#
- 1...Sb3
- Tries
- 1.Sef3?
- threat
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...Bxf3
- 2.Sxf3#
- 1...hxg5
- 2.Qxg5#
- 1...Rf8
- 2.Sf7#
- 1...Bh3
- 2.Sxh3#
- 1...Sc4
- 2.Bc6#
- 1...Sc6
- 2.Bxc6#
- 1...Rg8!
- threat
- 1.Sc4?
- threat
- 2.Se3#
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 2.R6e5#
- 1...Sxc4
- 2.Bc6#
- 1...hxg5
- 2.Se3#
- 2.R6e5#
- 2.Qxg5#
- 1...Rg8
- 2.Se3#
- 2.R6e5#
- 1...Re8
- 2.Se3#
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...Rf8
- 2.Se3#
- 2.Sf7#
- 2.R6e5#
- 1...Bf3
- 2.Se3#
- 2.Sxf3#
- 2.R6e5#
- 1...Bh3
- 2.Se3#
- 2.Sxh3#
- 2.R6e5#
- 1...Sc6
- 2.Se3#
- 2.Bxc6#
- 1...Bxe4!
- threat
- 1.Sg4?
- threat
- 2.Se3#
- 2.Sf6#
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...hxg5
- 2.Se3#
- 2.Sf6#
- 2.Qxg5#
- 1...c4
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...Rg8
- 2.Se3#
- 2.Sf6#
- 1...Rf8
- 2.Se3#
- 2.Sf7#
- 1...Bf3
- 2.Se3#
- 2.Sf6#
- 2.Sxf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...Bh3
- 2.Se3#
- 2.Sf6#
- 2.Sf3#
- 2.Sxh3#
- 2.Sf7#
- 2.Sh7#
- 1...Sc4
- 2.Sf6#
- 2.Bc6#
- 1...Sc6
- 2.Se3#
- 2.Sf6#
- 2.Bxc6#
- 1...Bxe4!
- threat
- 1.Sc6?
- threat
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 2.Se7#
- 1...Sxc6
- 2.Bxc6#
- 1...hxg5
- 2.Se7#
- 2.Qxg5#
- 1...c4
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 2.R4e5#
- 1...Rg8
- 2.Se7#
- 1...Rd7
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...Re8
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...Rf8
- 2.Sf7#
- 2.Se7#
- 1...Bf3
- 2.Sxf3#
- 2.Se7#
- 1...Bh3
- 2.Sxh3#
- 2.Se7#
- 1...Sc4
- 2.Se7#
- 1...Bxe4!
- threat
- 1.Sg6?
- threat
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 2.Se7#
- 1...hxg5
- 2.Se7#
- 2.Qxg5#
- 1...c4
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...Rd7
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...Re8
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...Rf8
- 2.Sf7#
- 2.Se7#
- 1...Bf3
- 2.Sxf3#
- 2.Se7#
- 1...Bh3
- 2.Sxh3#
- 2.Se7#
- 1...Sc4
- 2.Se7#
- 2.Bc6#
- 1...Sc6
- 2.Bxc6#
- 1...Bxe4!
- threat
- 1.Sd7?
- threat
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 2.Sf6#
- 1...Rxd7
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...hxg5
- 2.Sf6#
- 2.Qxg5#
- 1...Rg8
- 2.Sf6#
- 1...Rf8
- 2.Sf7#
- 1...Bf3
- 2.Sxf3#
- 2.Sf6#
- 1...Bh3
- 2.Sxh3#
- 2.Sf6#
- 1...Sc4
- 2.Sf6#
- 2.Bc6#
- 1...Sc6
- 2.Sf6#
- 2.Bxc6#
- 1...c4
- 2.Sf3#
- 2.Sh3#
- 2.Sf7#
- 2.Sh7#
- 1...Bxe4!
- threat
- 1.Sef7?
- threat
- 2.Sf3#
- 2.Sh3#
- 2.Sh7#
- 2.R6e5#
- 1...hxg5
- 2.R6e5#
- 2.Qxg5#
- 1...Rg8
- 2.R6e5#
- 1...Re8
- 2.Sf3#
- 2.Sh3#
- 2.Sh7#
- 1...Bf3
- 2.Sxf3#
- 2.R6e5#
- 1...Bh3
- 2.Sxh3#
- 2.R6e5#
- 1...Sc4
- 2.Bc6#
- 1...Sc6
- 2.Bxc6#
- 1...Bxe4!
- threat
- 1.Sef3?
- Keys
- 1.Sgf3!
- threat
- 2.Sd3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Kxe4+
- 2.Sd3#
- 1...Kxe6+
- 2.Sd7#
- 1...Bxf3
- 2.Sxf3#
- 2.Sg4#
- 1...c4
- 2.Sd3#
- 2.Sxc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Rg8
- 2.Sg6#
- 1...Rd7
- 2.Sd3#
- 2.Sc4#
- 2.Sg4#
- 2.Sc6#
- 2.Sg6#
- 2.Sxd7#
- 2.Sf7#
- 1...Rf8
- 2.Sf7#
- 1...Bh3
- 2.Sg4#
- 1...Sc4
- 2.Sxc4#
- 1...Sc6
- 2.Sxc6#
- 1...c6
- 2.Sd3#
- 2.Sc4#
- 2.Sg4#
- 2.Sxc6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- threat
- 1.Sgf3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 2
- Sets
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(a);P_PINP(B),XS(F)::QAR(H)+S(G),XB(a)
- P(e);OGATE,P_SPINP(e),XS(G)::QAR(H),XP(e)
- R(g);::QAR(H)+S(G)
- B(a);::QAR(H)+S(G),XB(a)
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- Refutation
- R(g);
- Try
- S(F);
- Threat
- DUALS(6)
- Vars
- S(b);N_GUARD,XS(F)::B(C)
- Refutation
- B(a);XR(D)
- Try
- S(F);
- Threat
- DUALS(6)
- Refutation
- B(a);XR(D)
- Try
- S(F);
- Threat
- DUALS(5)
- Vars
- S(b);OGATE,XS(F)::B(C),XS(b)
- R(g);::S(F)
- S(b);::S(F)
- Refutation
- B(a);XR(D)
- Try
- S(F);
- Threat
- DUALS(5)
- Vars
- S(b);N_GUARD::B(C),XS(b)
- Refutation
- B(a);XR(D)
- Try
- S(F);
- Threat
- DUALS(5)
- Vars
- R(g);::S(F)
- R(g);::QAR(H)+S(G)
- Refutation
- B(a);XR(D)
- Try
- S(F);
- Threat
- DUALS(4)
- Vars
- R(g);::R1(I)
- S(b);N_GUARD::B(C)
- S(b);N_GUARD::B(C),XS(b)
- Refutation
- B(a);XR(D)
- Try
- Actual
- S(G);
- Threat
- DUALS(7)
- Vars
- K(d);CHECK,S_FLIGHT,XR(D)::R(I)+S(F)
- K(d);CHECK,S_FLIGHT,XR(I)::R(D)+S(F)
- R(g);::QAR(H)+S(F)
- B(a);::QAR(H)+S(F)
- S(b);::QAR(H)+S(F),XS(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).