MESON Chess Problem Database
Problem Display
PID: 159712 (8/N3p3/1BRp3p/2n2RnK/bp1k4/1p1P1p2/1P3P2/4NQ2 w - - 0 1)
Anonymous
BCPJ (June), 1919
#2
10 + 10
SOLUTION
- SOUND
- Sets
- 1...Bb5
- 2.Sxb5#
- 1...Bxc6
- 2.Sxc6#
- 1...Sh3
- 2.Sxf3#
- 1...Se4
- 2.Sxf3#
- 1...Se6
- 2.Sxf3#
- 1...Sf7
- 2.Sxf3#
- 1...Sh7
- 2.Sxf3#
- 1...d5
- 2.Bxc5#
- 1...e5
- 2.Rxd6#
- 1...e6
- 2.Rxd6#
- 1...Bb5
- Tries
- 1.Kg4?
- 1...Bxc6
- 2.Sxc6#
- 1...e5
- 2.Rxd6#
- 1...Bb5
- 2.Sxb5#
- 1...Sh3
- 2.Sxf3#
- 1...Se4
- 2.Sxf3#
- 1...Se6
- 2.Sxf3#
- 1...Sf7
- 2.Sxf3#
- 1...Sh7
- 2.Sxf3#
- 1...d5
- 2.Bxc5#
- 1...e6
- 2.Rxd6#
- 1...h5+!
- 1...Bxc6
- 1.Kh4?
- 1...Bxc6
- 2.Sxc6#
- 1...e5
- 2.Rxd6#
- 1...Bb5
- 2.Sxb5#
- 1...Sh3
- 2.Sxf3#
- 1...Se4
- 2.Sxf3#
- 1...Se6
- 2.Sxf3#
- 1...Sf7
- 2.Sxf3#
- 1...Sh7
- 2.Sxf3#
- 1...d5
- 2.Bxc5#
- 1...e6
- 2.Rxd6#
- 1...h5!
- 1...Bxc6
- 1.Kg6?
- 1...Bxc6
- 2.Sxc6#
- 1...e5
- 2.Rxd6#
- 1...Bb5
- 2.Sxb5#
- 1...Sh3
- 2.Sxf3#
- 1...Se4
- 2.Sxf3#
- 1...Se6
- 2.Sxf3#
- 1...Sf7
- 2.Sxf3#
- 1...Sh7
- 2.Sxf3#
- 1...d5
- 2.Bxc5#
- 1...e6
- 2.Rxd6#
- 1...h5!
- 1...Bxc6
- 1.Kxh6?
- 1...Bxc6
- 2.Sxc6#
- 1...e5
- 2.Rxd6#
- 1...Bb5
- 2.Sxb5#
- 1...Sh3
- 2.Sxf3#
- 1...Se4
- 2.Sxf3#
- 1...Se6
- 2.Sxf3#
- 1...Sh7
- 2.Sxf3#
- 1...d5
- 2.Bxc5#
- 1...e6
- 2.Rxd6#
- 1...Sf7+!
- 1...Bxc6
- 1.Ba5?
- 1...Bxc6
- 2.Sxc6#
- 1...Sxd3
- 2.Qxd3#
- 1...e5
- 2.Rxd6#
- 1...Bb5
- 2.Sxb5#
- 1...Sce4
- 2.Rc4#
- 1...Sa6
- 2.Rc4#
- 1...Sce6
- 2.Rc4#
- 1...Sb7
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sh3
- 2.Sxf3#
- 1...Sge4
- 2.Sxf3#
- 1...Sge6
- 2.Sxf3#
- 1...Sf7
- 2.Sxf3#
- 1...Sh7
- 2.Sxf3#
- 1...e6
- 2.Rxd6#
- 1...d5!
- 1...Bxc6
- 1.Bd8?
- 1...Bxc6
- 2.Sxc6#
- 1...Sxd3
- 2.Qxd3#
- 1...e5
- 2.Rxd6#
- 1...Bb5
- 2.Sxb5#
- 1...Sce4
- 2.Rc4#
- 1...Sa6
- 2.Rc4#
- 1...Sce6
- 2.Rc4#
- 1...Sb7
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sh3
- 2.Sxf3#
- 1...Sge4
- 2.Sxf3#
- 1...Sge6
- 2.Sxf3#
- 1...Sf7
- 2.Sxf3#
- 1...Sh7
- 2.Sxf3#
- 1...e6
- 2.Rxd6#
- 1...d5!
- 1...Bxc6
- 1.Rxg5?
- threat
- 2.Sxf3#
- 1...Bxc6
- 2.Sxc6#
- 1...e5
- 2.Rxd6#
- 1...hxg5!
- threat
- 1.Rcxc5?
- threat
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rcd5#
- 2.Rce5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 2.Rfd5#
- 1...dxc5
- 2.Bxc5#
- 1...Bb5
- 2.Sxb5#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Rxb5#
- 2.Rcd5#
- 2.Rce5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 2.Rfd5#
- 1...Bc6
- 2.Sxc6#
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rcd5#
- 2.Rce5#
- 2.Rxc6#
- 1...Se4
- 2.Sxf3#
- 2.Rc4#
- 2.Rcd5#
- 2.Rfd5#
- 1...Se6
- 2.Sxf3#
- 2.Rc4#
- 2.Rcd5#
- 2.Rfd5#
- 1...d5
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rcxd5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 2.Rfxd5#
- 1...e5
- 2.Ra5#
- 2.Rb5#
- 2.Rcxe5#
- 1...e6
- 2.Rc1#
- 2.Rc2#
- 2.Rc3#
- 2.Rc4#
- 2.Ra5#
- 2.Rb5#
- 2.Rcd5#
- 2.Rce5#
- 2.Rc6#
- 2.Rc7#
- 2.Rc8#
- 1...Be8+!
- threat
- 1.Qe2?
- threat
- 2.Qe3#
- 1...e5
- 2.Rxd6#
- 1...fxe2!
- threat
- 1.Kg4?
- Keys
- 1.Bc7!
- 1...Bxc6
- 2.Sxc6#
- 1...Sxd3
- 2.Qxd3#
- 1...e5
- 2.Rxd6#
- 1...Bb5
- 2.Sxb5#
- 1...Sce4
- 2.Rc4#
- 1...Sa6
- 2.Rc4#
- 1...Sce6
- 2.Rc4#
- 1...Sb7
- 2.Rc4#
- 1...Sd7
- 2.Rc4#
- 1...Sh3
- 2.Sxf3#
- 1...Sge4
- 2.Sxf3#
- 1...Sge6
- 2.Sxf3#
- 1...Sf7
- 2.Sxf3#
- 1...Sh7
- 2.Sxf3#
- 1...d5
- 2.Be5#
- 1...e6
- 2.Rxd6#
- 1...Bxc6
- 1.Bc7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- B(c);N_GUARD::S(J),XB(c)
- B(c);XR(I)::S(J),XB(c)
- S(g);N_GUARD::S(A),XP(b)
- P(h);N_GUARD::B(H),XS(f)
- P(j);N_GUARD::R(I),XP(h)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- B(c);XR(I)::S(J),XB(c)
- P(j);N_GUARD::R(I),XP(h)
- B(c);N_GUARD::S(J),XB(c)
- S(g);N_GUARD::S(A),XP(b)
- P(h);N_GUARD::B(H),XS(f)
- Refutation
- P(i);CHECK
- Try
- K(G);P-FLIGHT
- Vars
- B(c);XR(I)::S(J),XB(c)
- P(j);N_GUARD::R(I),XP(h)
- B(c);N_GUARD::S(J),XB(c)
- S(g);N_GUARD::S(A),XP(b)
- P(h);N_GUARD::B(H),XS(f)
- Refutation
- P(i);
- Try
- K(G);S_FLIGHT
- Vars
- B(c);XR(I)::S(J),XB(c)
- P(j);N_GUARD::R(I),XP(h)
- B(c);N_GUARD::S(J),XB(c)
- S(g);N_GUARD::S(A),XP(b)
- P(h);N_GUARD::B(H),XS(f)
- Refutation
- P(i);
- Try
- K(G);P-FLIGHT,XP(i)
- Vars
- B(c);XR(I)::S(J),XB(c)
- P(j);N_GUARD::R(I),XP(h)
- B(c);N_GUARD::S(J),XB(c)
- S(g);N_GUARD::S(A),XP(b)
- P(h);N_GUARD::B(H),XS(f)
- Refutation
- S(g);CHECK
- Try
- B(H);N_PINS(f)
- Vars
- B(c);XR(I)::S(J),XB(c)
- S(f);OGATE,XP(E)::QAR1(B),XS(f)
- P(j);N_GUARD::R(I),XP(h)
- B(c);N_GUARD::S(J),XB(c)
- S(f);OGATE::R1(I)
- S(g);N_GUARD::S(A),XP(b)
- Refutation
- P(h);
- Try
- B(H);N_PINS(f)
- Vars
- B(c);XR(I)::S(J),XB(c)
- S(f);OGATE,XP(E)::QAR1(B),XS(f)
- P(j);N_GUARD::R(I),XP(h)
- B(c);N_GUARD::S(J),XB(c)
- S(f);OGATE::R1(I)
- S(g);N_GUARD::S(A),XP(b)
- Refutation
- P(h);
- Try
- R(F);XS(g)
- Threat
- S(A),XP(b)
- Vars
- B(c);XR(I)::S(J),XB(c)
- P(j);N_GUARD::R(I),XP(h)
- Refutation
- P(i);XR(F)
- Try
- R(I);XS(f)
- Threat
- DUALS(12)
- Vars
- P(h);OGATE,P_SPINP(h),XR(I)::B(H),XP(h)
- Refutation
- B(c);CHECK
- Try
- Q(B);
- Threat
- QAB1(B)
- Vars
- P(j);N_GUARD::R(I),XP(h)
- Refutation
- P(b);XQ(B)
- Try
- Actual
- B(H);N_PINS(f)
- Vars
- B(c);XR(I)::S(J),XB(c)
- S(f);OGATE,XP(E)::QAR1(B),XS(f)
- P(j);N_GUARD::R(I),XP(h)
- B(c);N_GUARD::S(J),XB(c)
- S(f);OGATE::R1(I)
- S(g);N_GUARD::S(A),XP(b)
- P(h);OGATE,SBLOCK::B(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).