MESON Chess Problem Database
Problem Display
PID: 170175 (1Bb2K2/2p1P1Qp/3p3P/R4Np1/r4k2/1r2pPp1/5PP1/4bN2 w - - 0 1)
Machler, Emil
Tages-Anzeiger, 1985
#2
11 + 11
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Rb1
- 2.fxe3#
- 1...Rb2
- 2.fxe3#
- 1...Rbb4
- 2.fxe3#
- 1...Rb6
- 2.fxe3#
- 1...Rb7
- 2.fxe3#
- 1...Rxb8
- 2.fxe3#
- 1...Ra1
- 2.Qd4#
- 1...Ra2
- 2.Qd4#
- 1...Ra3
- 2.Qd4#
- 1...Rd4
- 2.Qxd4#
- 1...Bd2
- 2.fxg3#
- 1...Bc3
- 2.fxe3#
- 2.fxg3#
- 1...Bb4
- 2.Qd4#
- 2.fxg3#
- 1...g4
- 2.Qxg4#
- 1...c6
- 2.Bxd6#
- 1...Rb1
- Tries
- 1.S1xg3?
- threat
- 2.Se2#
- 2.Sh5#
- 1...Rxa5
- 2.Qd4#
- 1...Rb2
- 2.Sh5#
- 2.fxe3#
- 1...Rb5
- 2.fxe3#
- 1...Ra2
- 2.Sh5#
- 2.Qd4#
- 1...Ba6
- 2.Sh5#
- 1...e2
- 2.Sxe2#
- 2.Sh5#
- 1...d5
- 2.Bxc7#
- 1...c5
- 2.Bxd6#
- 1...Bxa5!
- threat
- 1.S5xe3?
- threat
- 2.Qxg5#
- 1...Rxa5
- 2.Qd4#
- 1...Bxa5
- 2.fxg3#
- 1...Bf5
- 2.Sd5#
- 2.Rxf5#
- 1...g4
- 2.Qg5#
- 1...d5
- 2.Bxc7#
- 1...c5
- 2.Bxd6#
- 1...Rb5!
- threat
- 1.S5xg3?
- threat
- 2.Se2#
- 2.Sh5#
- 2.Qxg5#
- 1...Rxa5
- 2.Qd4#
- 1...Rb2
- 2.Sh5#
- 2.Qxg5#
- 2.fxe3#
- 1...Rb5
- 2.fxe3#
- 1...Ra2
- 2.Sh5#
- 2.Qd4#
- 2.Qxg5#
- 1...Bg4
- 2.Se2#
- 2.Qxg5#
- 1...Bf5
- 2.Se2#
- 2.Sh5#
- 2.Rxf5#
- 1...Ba6
- 2.Sh5#
- 2.Rf5#
- 2.Qf6#
- 2.Qxg5#
- 2.Qf7#
- 1...e2
- 2.Sxe2#
- 2.Sh5#
- 2.Qxg5#
- 1...g4
- 2.Se2#
- 2.Sh5#
- 2.Qg5#
- 1...d5
- 2.Bxc7#
- 1...c5
- 2.Bxd6#
- 1...Bxa5!
- threat
- 1.Sd4?
- threat
- 2.Se2#
- 2.Qxg5#
- 1...Rxd4
- 2.Qxd4#
- 2.Qxg5#
- 1...Bxa5
- 2.fxg3#
- 1...Rb2
- 2.Qxg5#
- 2.fxe3#
- 1...Rb5
- 2.fxe3#
- 1...Ra2
- 2.Qxg5#
- 1...Bf5
- 2.Se2#
- 2.Rxf5#
- 1...Ba6
- 2.Se6#
- 2.Rf5#
- 2.Qf6#
- 2.Qxg5#
- 2.Qf7#
- 1...e2
- 2.Sxe2#
- 2.Qxg5#
- 1...g4
- 2.Se2#
- 2.Qg5#
- 1...d5
- 2.Bxc7#
- 1...c5
- 2.Bxd6#
- 1...Rxa5!
- threat
- 1.Sxd6?
- threat
- 2.Qe5#
- 2.Qxg5#
- 1...Rxa5
- 2.Qd4#
- 1...Bxa5
- 2.fxg3#
- 1...cxd6
- 2.Bxd6#
- 2.Qxg5#
- 1...Rb5
- 2.fxe3#
- 1...Re4
- 2.Qxg5#
- 1...Bc3
- 2.Qxg5#
- 2.fxe3#
- 2.fxg3#
- 1...Bf5
- 2.Rxf5#
- 2.Qe5#
- 1...g4
- 2.Qe5#
- 2.Qg5#
- 1...c5!
- threat
- 1.S1xg3?
- Keys
- 1.Sh4!
- threat
- 2.Qxg5#
- 1...Rxa5
- 2.Qd4#
- 1...Bxa5
- 2.fxg3#
- 1...gxh4
- 2.Qg5#
- 1...Rb5
- 2.fxe3#
- 1...Bf5
- 2.Rxf5#
- 1...g4
- 2.Qg5#
- 1...d5
- 2.Bxc7#
- 1...c5
- 2.Bxd6#
- threat
- 1.Sh4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 7
- REMOVED MATES = 12
- Sets
- R(b);N_GUARD::P(B),XP(c)
- R(b);N_GUARD,XB(J)::P(B),XP(c)
- R(e);N_GUARD::QAR2(I)
- R(e);N_GUARD::QAR2(I),XR(e)
- B(a);N_GUARD::P(B),XP(d)
- P(g);OGATE::QAR1(I),XP(g)
- P(i);OGATE,P_SPINP(h)::B(J),XP(h)
- Tries
- Try
- S(A);XP(d)
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD,XR(E)::QAR2(I)
- R(b);N_GUARD::P(B),XP(c)
- B(k);::S(A)
- P(h);OGATEB,P_SPINP(i)::B(J),XP(i)
- P(i);OGATE,P_SPINP(h)::B(J),XP(h)
- Refutation
- B(a);XR(E)
- Try
- S(F);XP(c)
- Threat
- QAB1(I),XP(g)
- Vars
- R(e);N_GUARD,XR(E)::QAR2(I)
- B(a);N_GUARD,XR(E)::P(B),XP(d)
- P(g);::QAB1(I)
- P(h);OGATEB,P_SPINP(i)::B(J),XP(i)
- P(i);OGATE,P_SPINP(h)::B(J),XP(h)
- Refutation
- R(b);
- Try
- S(F);XP(d)
- Threat
- DUALS(3)
- Vars
- R(e);N_GUARD,XR(E)::QAR2(I)
- R(b);N_GUARD::P(B),XP(c)
- P(h);OGATEB,P_SPINP(i)::B(J),XP(i)
- P(i);OGATE,P_SPINP(h)::B(J),XP(h)
- Refutation
- B(a);XR(E)
- Try
- S(F);
- Threat
- DUALS(2)
- Vars
- B(a);N_GUARD,XR(E)::P(B),XP(d)
- R(b);N_GUARD::P(B),XP(c)
- R(e);::QAB1(I),XP(g)
- P(h);OGATEB,P_SPINP(i)::B(J),XP(i)
- P(i);OGATE,P_SPINP(h)::B(J),XP(h)
- Refutation
- R(e);XR(E)
- Try
- S(F);XP(h)
- Threat
- DUALS(2)
- Vars
- R(e);N_GUARD,XR(E)::QAR2(I)
- B(a);N_GUARD,XR(E)::P(B),XP(d)
- R(b);N_GUARD::P(B),XP(c)
- R(e);::QAB1(I),XP(g)
- Refutation
- P(i);
- Try
- Actual
- S(F);
- Threat
- QAB1(I),XP(g)
- Vars
- R(e);N_GUARD,XR(E)::QAR2(I)
- B(a);N_GUARD,XR(E)::P(B),XP(d)
- P(g);XS(F)::QAB1(I)
- R(b);N_GUARD::P(B),XP(c)
- B(k);N_GUARD::R1(E),XB(k)
- P(g);::QAB1(I)
- P(h);OGATEB,P_SPINP(i)::B(J),XP(i)
- P(i);OGATE,P_SPINP(h)::B(J),XP(h)
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).