MESON Chess Problem Database
Problem Display
PID: 135222 (6q1/1P1RB2B/5r2/3pN2R/N1Pk2P1/Knp5/p3Q3/rb2b3 w - - 0 1)
Gross, Erwin
Schach-Echo, 1970
#2
11 + 10
| 56 | The Problemist | 2009 |
| 23 | Die Schwalbe | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Qxh7
- 2.Rxd5#
- 1...Qxg4
- 2.Rxd5#
- 1...Qg5
- 2.Rxd5#
- 1...Qg6
- 2.Rxd5#
- 1...Qg7
- 2.Rxd5#
- 1...Qa8
- 2.Rxd5#
- 1...Qb8
- 2.Rxd5#
- 1...Qc8
- 2.Rxd5#
- 1...Qe8
- 2.Rxd5#
- 1...Qf8
- 2.Rxd5#
- 1...Qh8
- 2.Rxd5#
- 1...Rf1
- 2.Sc6#
- 1...Rf2
- 2.Sc6#
- 1...Rf3
- 2.Sxf3#
- 2.Sc6#
- 1...Rf4
- 2.Sc6#
- 1...Rf5
- 2.Sc6#
- 1...Ra6
- 2.Sf3#
- 1...Rb6
- 2.Sf3#
- 1...Rc6
- 2.Sf3#
- 2.Sxc6#
- 1...Rd6
- 2.Sf3#
- 1...Re6
- 2.Sf3#
- 2.Rxd5#
- 1...Rg6
- 2.Sf3#
- 1...Rh6
- 2.Sf3#
- 1...Rf7
- 2.Sc6#
- 2.Rxd5#
- 1...Rf8
- 2.Sc6#
- 1...Bd3
- 2.Qxd3#
- 1...Be4
- 2.Qxe4#
- 1...Bf5
- 2.Sf3#
- 1...Sc1
- 2.Bc5#
- 1...Sd2
- 2.Bc5#
- 1...Sa5
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- 1...c2
- 2.Qd3#
- 2.Qe4#
- 1...Qxh7
- Tries
- 1.Bd6?
- threat
- 2.Sc6#
- 1...Rxd6
- 2.Sf3#
- 1...Bd3
- 2.Qxd3#
- 1...Sa5
- 2.Bc5#
- 1...Qc8!
- threat
- 1.Bxf6?
- threat
- 2.Sf3#
- 2.Sc6#
- 2.Sg6#
- 2.Sf7#
- 1...Qe6
- 2.Sf3#
- 2.Sc6#
- 1...Qf7
- 2.Sf3#
- 2.Sc6#
- 2.Sxf7#
- 1...Qg5
- 2.Sf3#
- 2.Sc6#
- 2.Rxd5#
- 1...Qg6
- 2.Sf3#
- 2.Sc6#
- 2.Sxg6#
- 2.Rxd5#
- 1...Qg7
- 2.Sf3#
- 2.Sc6#
- 2.Rxd5#
- 1...Qb8
- 2.Sf3#
- 2.Sc6#
- 2.Rxd5#
- 1...Qd8
- 2.Sf3#
- 2.Sc6#
- 1...Qe8
- 2.Sf3#
- 2.Sc6#
- 2.Rxd5#
- 1...Qh8
- 2.Sf3#
- 2.Sc6#
- 2.Rxd5#
- 1...Bd3
- 2.Qxd3#
- 1...Bg6
- 2.Sf3#
- 2.Sc6#
- 2.Sxg6#
- 2.Sf7#
- 1...Bg3
- 2.Sf3#
- 2.Sc6#
- 1...Bh4
- 2.Sf3#
- 2.Sc6#
- 1...Qf8+!
- threat
- 1.Bc2?
- threat
- 2.Qd3#
- 2.Qe4#
- 1...Qxg4
- 2.Rxd5#
- 2.Qd3#
- 1...Qh7
- 2.Rxd5#
- 1...Qg5
- 2.Rxd5#
- 2.Qe4#
- 1...Qg6
- 2.Rxd5#
- 1...Rf3
- 2.Sxf3#
- 2.Sc6#
- 2.Qe4#
- 1...Rf4
- 2.Sc6#
- 2.Qd3#
- 1...Rf5
- 2.Sc6#
- 2.Qe4#
- 1...Rd6
- 2.Sf3#
- 2.Qd3#
- 1...Sc1
- 2.Bc5#
- 2.Qe4#
- 1...Sd2
- 2.Bc5#
- 2.Qd3#
- 1...Sc5
- 2.Bxc5#
- 1...Bxc2!
- threat
- 1.Bf5?
- threat
- 2.Sf3#
- 1...Qxg4
- 2.Rxd5#
- 1...Rxf5
- 2.Sc6#
- 1...Be4
- 2.Qxe4#
- 1...Sd2
- 2.Bc5#
- 1...Bd3!
- threat
- 1.Bxg8?
- threat
- 2.Rxd5#
- 1...Rd6
- 2.Sf3#
- 1...Be4!
- threat
- 1.Rf5?
- threat
- 2.Sf3#
- 1...Qxg4
- 2.Rxd5#
- 1...Rxf5
- 2.Sc6#
- 1...Bd3
- 2.Qxd3#
- 1...Sd2
- 2.Bc5#
- 1...Be4!
- threat
- 1.Rd6?
- threat
- 2.Sc6#
- 1...Rxd6
- 2.Sf3#
- 1...Qc8
- 2.Rxd5#
- 1...Qe8
- 2.Rxd5#
- 1...Bd3
- 2.Qxd3#
- 1...Sa5!
- threat
- 1.Bd6?
- Keys
- 1.Bd3!
- threat
- 2.Qe4#
- 1...Qxg4
- 2.Rxd5#
- 1...Bxd3
- 2.Qxd3#
- 1...Qh7
- 2.Rxd5#
- 1...Qg6
- 2.Rxd5#
- 1...Rf4
- 2.Sc6#
- 1...Rd6
- 2.Sf3#
- 1...Sd2
- 2.Bc5#
- 1...Sc5
- 2.Bxc5#
- threat
- 1.Bd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 0
- REMOVED MATES = 20
- Sets
- Q(j);N_GUARD,XB(K)::R1(I),XP(h)
- Q(j);N_GUARD,XP(E)::R1(I),XP(h)
- Q(j);N_GUARD::R1(I),XP(h)
- Q(j);N_GUARD,P_PINS(C)::R1(I),XP(h)
- Q(j);N_GUARD,P_PINB(J)::R1(I),XP(h)
- R(i);N_GUARD::S(F)
- R(i);N_GUARD,P_PINS(C)::S(F)
- R(i);N_GUARD,N_SPINP(h)::S(F)
- B(b);N_GUARD::QAR1(A),XB(b)
- B(b);S_CUTR(i)::S(F)
- S(e);N_GUARD::B(J)
- S(e);N_GUARD::B(J),XS(e)
- Tries
- Try
- B(J);N_PINP(h)
- Threat
- S(F)
- Vars
- R(i);N_GUARD,XB(J)::S(F)
- B(b);N_GUARD::QAR1(A),XB(b)
- S(e);N_GUARD::B(J)
- Refutation
- Q(j);
- Try
- B(J);XR(i)
- Threat
- DUALS(4)
- Vars
- B(b);N_GUARD::QAR1(A),XB(b)
- Refutation
- Q(j);CHECK
- Try
- B(K);
- Threat
- DUALS(2)
- Vars
- Q(j);N_GUARD::R1(I),XP(h)
- S(e);N_GUARD::B(J),XS(e)
- Refutation
- B(b);XB(K)
- Try
- B(K);
- Threat
- S(F)
- Vars
- Q(j);N_GUARD,XP(E)::R1(I),XP(h)
- R(i);N_GUARD,XB(K)::S(F)
- B(b);N_GUARD::QAR1(A),XB(b)
- S(e);N_GUARD::B(J)
- Refutation
- B(b);
- Try
- B(K);XQ(j)
- Threat
- R1(I),XP(h)
- Vars
- R(i);N_GUARD,N_SPINP(h)::S(F)
- Refutation
- B(b);
- Try
- R(G);
- Threat
- S(F)
- Vars
- Q(j);N_GUARD,XP(E)::R1(I),XP(h)
- R(i);N_GUARD,XR(G)::S(F)
- B(b);N_GUARD::QAR1(A),XB(b)
- S(e);N_GUARD::B(J)
- Refutation
- B(b);
- Try
- R(I);
- Threat
- S(F)
- Vars
- R(i);N_GUARD,N_SPINP(h),XR(I)::S(F)
- Q(j);N_GUARD::R1(I),XP(h)
- B(b);N_GUARD::QAR1(A),XB(b)
- Refutation
- S(e);
- Try
- Actual
- B(K);
- Threat
- QAR1(A)
- Vars
- Q(j);N_GUARD,XP(E)::R1(I),XP(h)
- B(b);OGATE,XB(K)::QAR1(A),XB(b)
- Q(j);N_GUARD::R1(I),XP(h)
- R(i);N_GUARD::S(F)
- R(i);N_GUARD,N_SPINP(h)::S(F)
- S(e);N_GUARD::B(J)
- S(e);N_GUARD::B(J),XS(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).