MESON Chess Problem Database
Problem Display
PID: 32169 (8/b1Bp1Q1r/4nP2/6R1/1P1kr3/K1RN4/2bP1PB1/8 w - - 0 1)
Biedermann, Walter
Basler Zeitung, 1989
#2
11 + 7
| 3454 | kunstschach (1987-1996) (Hoffmann) | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Rd5#
- 1...Re2
- 2.Rd5#
- 1...Re3
- 2.Rd5#
- 2.fxe3#
- 1...Rf4
- 2.Be5#
- 2.Rd5#
- 1...Rg4
- 2.Be5#
- 2.Rd5#
- 1...Reh4
- 2.Be5#
- 2.Rd5#
- 1...Re5
- 2.Bxe5#
- 1...Rh1
- 2.Qxd7#
- 1...Rh2
- 2.Qxd7#
- 1...Rh3
- 2.Qxd7#
- 1...Rhh4
- 2.Qxd7#
- 1...Rh5
- 2.Qxd7#
- 1...Rh6
- 2.Qxd7#
- 1...Rh8
- 2.Qxd7#
- 1...Sf4
- 2.Qc4#
- 1...Sc5
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 1...Sxg5
- 2.Qc4#
- 1...Sxc7
- 2.Qc4#
- 1...Sg7
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qxd7#
- 1...Sd8
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 1...Sf8
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 1...Re1
- Tries
- 1.Se1?
- threat
- 2.Sxc2#
- 2.Sf3#
- 1...Rxe1
- 2.Rd5#
- 1...Sxg5
- 2.Sxc2#
- 2.Rc4#
- 2.Qc4#
- 1...Re2
- 2.Sxc2#
- 2.Rd5#
- 1...Re3
- 2.Sxc2#
- 2.Rd5#
- 2.fxe3#
- 1...Rf4
- 2.Sxc2#
- 2.Be5#
- 2.Rd5#
- 1...Rg4
- 2.Sxc2#
- 2.Be5#
- 2.Rd5#
- 1...Reh4
- 2.Sxc2#
- 2.Be5#
- 2.Rd5#
- 1...Re5
- 2.Sxc2#
- 2.Bxe5#
- 1...Rh3
- 2.Sxc2#
- 2.Qxd7#
- 1...Bb1
- 2.Sf3#
- 1...Bb3
- 2.Sf3#
- 1...Bd3
- 2.Sf3#
- 1...Ba4
- 2.Sf3#
- 1...Bd1!
- threat
- 1.Sb2?
- threat
- 2.Rc4#
- 1...Re3
- 2.Rd5#
- 2.fxe3#
- 1...Rh3
- 2.Qxd7#
- 1...Bb3
- 2.Rd3#
- 1...Bd3
- 2.Rxd3#
- 1...d5!
- threat
- 1.Sf4?
- threat
- 2.Rd5#
- 1...Sxf4
- 2.Qc4#
- 1...Sxg5
- 2.Rc4#
- 2.Qc4#
- 2.Qd5#
- 1...Sxc7
- 2.Rc4#
- 2.Qc4#
- 1...Re5
- 2.Bxe5#
- 1...Rh5
- 2.Qxd7#
- 1...d5
- 2.Rxd5#
- 1...Bb3!
- threat
- 1.Be5+?
- 1...Kd5
- 2.Sf4#
- 1...Rxe5!
- 1...Kd5
- 1.Bb6+?
- 1...Sc5
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 1...Bxb6!
- 1...Sc5
- 1.Qxe6?
- threat
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qxe4#
- 2.Qd6#
- 1...Rxe6
- 2.Rd5#
- 1...Bxd3
- 2.Rd5#
- 2.Qd5#
- 2.Qd6#
- 1...Re1
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qd6#
- 1...Re2
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qd6#
- 1...Re3
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qxe3#
- 2.Qd6#
- 2.fxe3#
- 1...Rf4
- 2.Be5#
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qe3#
- 2.Qe5#
- 2.Qd6#
- 1...Rg4
- 2.Be5#
- 2.Rxg4#
- 2.Rd5#
- 2.Qc4#
- 2.Qxg4#
- 2.Qd5#
- 2.Qe3#
- 2.Qe5#
- 2.Qd6#
- 1...Reh4
- 2.Be5#
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qe3#
- 2.Qe5#
- 2.Qd6#
- 1...Re5
- 2.Bxe5#
- 2.Qc4#
- 2.Qxe5#
- 1...Rhh4
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qxd7#
- 2.Qd6#
- 1...Rh5
- 2.Qc4#
- 2.Qd5#
- 2.Qxd7#
- 2.Qxe4#
- 2.Qd6#
- 1...Re7
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qd6#
- 1...Bb3
- 2.Qxe4#
- 1...Bc5
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qxe4#
- 1...d5
- 2.Rxd5#
- 2.Qxd5#
- 1...d6
- 2.Rd5#
- 2.Qc4#
- 2.Qd5#
- 2.Qxe4#
- 2.Qxd6#
- 1...dxe6!
- threat
- 1.Se1?
- Keys
- 1.Se5!
- threat
- 2.Sf3#
- 1...Kd5
- 2.Sc6#
- 1...Rxe5
- 2.Bxe5#
- 1...Sxg5
- 2.Rc4#
- 2.Qc4#
- 1...Re1
- 2.Rc4#
- 1...Re2
- 2.Rc4#
- 1...Re3
- 2.fxe3#
- 1...Rf4
- 2.Rc4#
- 1...Rg4
- 2.Rc4#
- 1...Reh4
- 2.Rc4#
- 1...Rh3
- 2.Qxd7#
- 1...Bd1
- 2.Rd3#
- threat
- 1.Se5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 6
- REMOVED MATES = 9
- Sets
- R(c);::R1(H)
- R(c);N_GUARD::B(J),XR(c)
- R(g);N_GUARD::QAR(K),XP(f)
- S(d);OGATE::QAR1(K)
- S(d);OGATE,XR(H)::QAR1(K)
- S(d);OGATE,XB(J)::QAR1(K)
- Tries
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- R(c);XS(F)::R1(H)
- B(a);::S(F)
- Refutation
- B(a);
- Try
- S(F);
- Threat
- R1(E)
- Vars
- R(g);N_GUARD,P_PINR(E)::QAR(K),XP(f)
- B(a);N_GUARD::R1(E)
- B(a);N_GUARD::R1(E),XB(a)
- Refutation
- P(f);
- Try
- S(F);
- Threat
- R1(H)
- Vars
- S(d);OGATE,XS(F)::QAR1(K)
- R(c);N_GUARD::B(J),XR(c)
- R(g);N_GUARD::QAR(K),XP(f)
- P(f);::R1(H),XP(f)
- Refutation
- B(a);
- Try
- B(J);CHECK
- Vars
- K(b);P-FLIGHT,P_SPINR(c),P_SPINS(d)::S(F)
- Refutation
- R(c);XB(J)
- Try
- B(J);CHECK
- Refutation
- B(e);XB(J)
- Try
- Q(K);XS(d)
- Threat
- DUALS(5)
- Vars
- R(c);XQ(K)::R1(H)
- B(a);::QAR1(K),XR(c)
- Refutation
- P(f);XQ(K)
- Try
- Actual
- S(F);
- Threat
- S(F)
- Vars
- K(b);P-FLIGHT,P_SPINR(c),P_SPINS(d)::R(H)+S(F)
- R(c);OGATE,XS(F)::B(J),XR(c)
- R(c);::R1(E)
- R(c);OGATE,P_PINR(E)::P(B),XR(c)
- R(g);N_GUARD,P_PINR(E)::QAR(K),XP(f)
- B(a);N_GUARD::R1(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).