MESON Chess Problem Database
Problem Display
PID: 188317 (4n2Q/R7/1b4b1/4BNpn/2B1k3/1r2P3/1p6/1K1N1R2 w - - 0 1)
Fischli, Albert
Schweizerische Schachzeitung, 1969
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Sxc3#
- 1...Rb4
- 2.Sc3#
- 1...Rb5
- 2.Sc3#
- 1...Sg3
- 2.Sxg3#
- 1...Sf4
- 2.Sg3#
- 1...Sd6
- 2.Sxd6#
- 1...Sc7
- 2.Sd6#
- 1...Rc3
- Tries
- 1.Sf2+?
- 1...Kxf5
- 2.e4#
- 1...Kf3!
- 1...Kxf5
- 1.Bxb2?
- threat
- 2.Re7#
- 2.Qe5#
- 1...Bxa7
- 2.Qe5#
- 1...Bxf5
- 2.Qe5#
- 1...Sf4
- 2.Sg3#
- 2.Qe5#
- 1...Rc3
- 2.Sxc3#
- 2.Re7#
- 1...Rb5
- 2.Sc3#
- 1...Bd4
- 2.Qxd4#
- 1...Bc5
- 2.Qe5#
- 1...Bc7
- 2.Qd4#
- 1...Bd8
- 2.Qd4#
- 2.Qe5#
- 1...Bf7
- 2.Qe5#
- 1...Shf6
- 2.Sg3#
- 2.Re7#
- 2.Qh1#
- 1...Shg7
- 2.Sg3#
- 2.Qh1#
- 1...Sef6
- 2.Sd6#
- 2.Re7#
- 1...Sc7
- 2.Sd6#
- 2.Qe5#
- 1...Seg7
- 2.Sd6#
- 2.Qa8#
- 1...Rxb2+!
- threat
- 1.Bh2?
- threat
- 2.Re7#
- 2.Qe5#
- 1...Bxa7
- 2.Qe5#
- 1...Bxf5
- 2.Qe5#
- 1...Sf4
- 2.Sg3#
- 1...Rb5
- 2.Sc3#
- 1...Bd4
- 2.Qxd4#
- 1...Bc5
- 2.Qe5#
- 1...Bc7
- 2.Qd4#
- 1...Bd8
- 2.Qd4#
- 2.Qe5#
- 1...Bf7
- 2.Qe5#
- 1...Sg3
- 2.Sxg3#
- 2.Re7#
- 1...Shf6
- 2.Re7#
- 1...Sef6
- 2.Sd6#
- 2.Re7#
- 1...Sc7
- 2.Sd6#
- 2.Qe5#
- 1...Seg7
- 2.Sd6#
- 2.Qa8#
- 1...Shg7!
- threat
- 1.Bc3?
- threat
- 2.Re7#
- 2.Qe5#
- 1...Rxc3
- 2.Sxc3#
- 2.Re7#
- 1...Bxa7
- 2.Qe5#
- 1...Bxf5
- 2.Qe5#
- 1...Sf4
- 2.Sg3#
- 2.Qe5#
- 1...Bd4
- 2.Qxd4#
- 1...Bc5
- 2.Qe5#
- 1...Bc7
- 2.Qd4#
- 1...Bd8
- 2.Qd4#
- 2.Qe5#
- 1...Bf7
- 2.Qe5#
- 1...Shf6
- 2.Sg3#
- 2.Re7#
- 2.Qh1#
- 1...Shg7
- 2.Sg3#
- 2.Qh1#
- 1...Sef6
- 2.Sd6#
- 2.Re7#
- 1...Sc7
- 2.Sd6#
- 2.Qe5#
- 1...Seg7
- 2.Sd6#
- 2.Qa8#
- 1...Rb5!
- threat
- 1.Bg3?
- threat
- 2.Re7#
- 2.Qe5#
- 1...Bxa7
- 2.Qe5#
- 1...Bxf5
- 2.Qe5#
- 1...Sxg3
- 2.Sxg3#
- 2.Re7#
- 1...Rb5
- 2.Sc3#
- 1...Bd4
- 2.Qxd4#
- 1...Bc5
- 2.Qe5#
- 1...Bc7
- 2.Qd4#
- 1...Bd8
- 2.Qd4#
- 2.Qe5#
- 1...Bf7
- 2.Qe5#
- 1...Shf6
- 2.Re7#
- 2.Qh1#
- 1...Shg7
- 2.Qh1#
- 1...Sef6
- 2.Sd6#
- 2.Re7#
- 1...Sc7
- 2.Sd6#
- 2.Qe5#
- 1...Seg7
- 2.Sd6#
- 2.Qa8#
- 1...Sf4!
- threat
- 1.Bd4?
- threat
- 2.Re7#
- 2.Qe5#
- 1...Bxd4
- 2.Qxd4#
- 1...Bxa7
- 2.Qe5#
- 1...Bxf5
- 2.Qe5#
- 1...Sf4
- 2.Sg3#
- 2.Qe5#
- 1...Rb5
- 2.Sc3#
- 1...Bc5
- 2.Qe5#
- 1...Bd8
- 2.Qe5#
- 1...Bf7
- 2.Qe5#
- 1...Shf6
- 2.Sg3#
- 2.Re7#
- 2.Qh1#
- 1...Shg7
- 2.Sg3#
- 2.Qh1#
- 1...Sef6
- 2.Sd6#
- 2.Re7#
- 1...Sc7
- 2.Sd6#
- 2.Qe5#
- 1...Seg7
- 2.Sd6#
- 2.Qa8#
- 1...Bc7!
- threat
- 1.Bc7?
- threat
- 2.Qe5#
- 1...Bxc7
- 2.Qd4#
- 1...Sxc7
- 2.Sd6#
- 1...Rb5
- 2.Sc3#
- 1...Bd4
- 2.Qxd4#
- 1...Shf6
- 2.Sg3#
- 2.Qh1#
- 1...Shg7
- 2.Sg3#
- 2.Qh1#
- 1...Sd6
- 2.Sxd6#
- 1...Seg7
- 2.Qa8#
- 1...Sef6!
- threat
- 1.Bb8?
- threat
- 2.Re7#
- 2.Qe5#
- 1...Bxa7
- 2.Qe5#
- 1...Bxf5
- 2.Qe5#
- 1...Sf4
- 2.Sg3#
- 2.Qe5#
- 1...Rb5
- 2.Sc3#
- 1...Bd4
- 2.Qxd4#
- 1...Bc5
- 2.Qe5#
- 1...Bc7
- 2.Qd4#
- 1...Bd8
- 2.Qd4#
- 2.Qe5#
- 1...Bf7
- 2.Qe5#
- 1...Shf6
- 2.Sg3#
- 2.Re7#
- 2.Qh1#
- 1...Shg7
- 2.Sg3#
- 2.Qh1#
- 1...Sd6
- 2.Sxd6#
- 2.Re7#
- 1...Sef6
- 2.Re7#
- 1...Sc7
- 2.Sd6#
- 1...Seg7!
- threat
- 1.Sf2+?
- Keys
- 1.Bd6!
- threat
- 2.Re7#
- 2.Qe5#
- 1...Bxa7
- 2.Qe5#
- 1...Bxf5
- 2.Qe5#
- 1...Sxd6
- 2.Sxd6#
- 2.Re7#
- 1...Sf4
- 2.Sg3#
- 2.Qe5#
- 1...Rb5
- 2.Sc3#
- 1...Bd4
- 2.Qxd4#
- 1...Bc7
- 2.Qd4#
- 2.Qe5#
- 1...Bd8
- 2.Qd4#
- 2.Qe5#
- 1...Bf7
- 2.Qe5#
- 1...Shf6
- 2.Sg3#
- 2.Re7#
- 2.Qh1#
- 1...Shg7
- 2.Sg3#
- 2.Qh1#
- 1...Sef6
- 2.Re7#
- 1...Sc7
- 2.Qe5#
- 1...Seg7
- 2.Qa8#
- threat
- 1.Bd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 5
- Sets
- R(b);N_GUARD::S(B),XR(b)
- R(b);N_GUARD::S(B)
- S(e);N_GUARD::S(G),XS(e)
- S(e);N_GUARD::S(G)
- S(h);N_GUARD::S(G),XS(h)
- S(h);N_GUARD::S(G)
- Tries
- Try
- S(B);CHECK
- Vars
- K(c);OGATE,S_FLIGHT,XS(G)::P(D)
- Refutation
- K(c);P_PINS(G),S_FLIGHT
- Try
- B(F);P_SPINB(F),XP(a)
- Threat
- DUALS(2)
- Vars
- B(f);XR(H)::QAR1(I)
- B(g);XS(G)::QAR1(I)
- R(b);N_GUARD::S(B)
- B(f);N_GUARD::QAR1(I),XB(f)
- B(f);::QAR1(I)
- B(f);N_GUARD::QAR1(I)
- B(g);::QAR1(I)
- Refutation
- R(b);CHECK,XB(F)
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- B(f);XR(H)::QAR1(I)
- B(g);XS(G)::QAR1(I)
- S(e);N_GUARD::S(G)
- R(b);N_GUARD::S(B)
- B(f);N_GUARD::QAR1(I),XB(f)
- B(f);::QAR1(I)
- B(f);N_GUARD::QAR1(I)
- B(g);::QAR1(I)
- S(e);::R(H)
- Refutation
- S(e);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- B(f);XR(H)::QAR1(I)
- B(g);XS(G)::QAR1(I)
- B(f);N_GUARD::QAR1(I),XB(f)
- B(f);::QAR1(I)
- B(f);N_GUARD::QAR1(I)
- B(g);::QAR1(I)
- Refutation
- R(b);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- B(f);XR(H)::QAR1(I)
- B(g);XS(G)::QAR1(I)
- R(b);N_GUARD::S(B)
- B(f);N_GUARD::QAR1(I),XB(f)
- B(f);::QAR1(I)
- B(f);N_GUARD::QAR1(I)
- B(g);::QAR1(I)
- S(e);OGATE::QAB(I)
- Refutation
- S(e);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- B(f);OGATE,XB(F)::QAR1(I),XB(f)
- B(f);XR(H)::QAR1(I)
- B(g);XS(G)::QAR1(I)
- R(b);N_GUARD::S(B)
- B(f);::QAR1(I)
- B(g);::QAR1(I)
- Refutation
- B(f);
- Try
- B(F);
- Threat
- QAR1(I)
- Vars
- B(f);N_GUARD,XB(F)::QAR1(I)
- S(h);N_GUARD,XB(F)::S(G)
- R(b);N_GUARD::S(B)
- B(f);N_GUARD::QAR1(I),XB(f)
- S(h);N_GUARD::S(G),XS(h)
- S(h);OGATE::QAB(I)
- Refutation
- S(h);
- Try
- B(F);
- Threat
- DUALS(2)
- Vars
- B(f);XR(H)::QAR1(I)
- B(g);XS(G)::QAR1(I)
- R(b);N_GUARD::S(B)
- B(f);N_GUARD::QAR1(I),XB(f)
- B(f);::QAR1(I)
- B(f);N_GUARD::QAR1(I)
- B(g);::QAR1(I)
- S(h);::R(H)
- S(h);N_GUARD::S(G)
- Refutation
- S(h);
- Try
- Actual
- B(F);
- Threat
- DUALS(2)
- Vars
- B(f);XR(H)::QAR1(I)
- B(g);XS(G)::QAR1(I)
- R(b);N_GUARD::S(B)
- B(f);N_GUARD::QAR1(I),XB(f)
- B(g);::QAR1(I)
- S(h);::R(H)
- S(h);::QAR1(I)
- S(h);OGATE::QAB(I)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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