MESON Chess Problem Database
Problem Display
PID: 141938 (6K1/1pR5/bp2pPQ1/4p1n1/3k1p2/2N1NR2/3PP3/2r5 w - - 0 1)
Ros, Johan August
4th Prize, British Chess Magazine 06. Ty., 1890
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sc2#
- 1...Rb1
- 2.Sc2#
- 1...Rd1
- 2.Sc2#
- 1...Re1
- 2.Sc2#
- 1...Rf1
- 2.Sc2#
- 1...Rg1
- 2.Sc2#
- 1...Rh1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Rxc3
- 2.dxc3#
- 1...Bxe2
- 2.Sxe2#
- 1...Bd3
- 2.Qxd3#
- 1...Bc4
- 2.Rxc4#
- 1...Bb5
- 2.Sxb5#
- 1...Sxf3
- 2.Qe4#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sf7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...fxe3
- 2.dxe3#
- 1...b5
- 2.Qd3#
- 1...Ra1
- Tries
- 1.Kg7?
- 1...Rxc3
- 2.dxc3#
- 1...Bxe2
- 2.Sxe2#
- 1...Sxf3
- 2.Qe4#
- 1...fxe3
- 2.dxe3#
- 1...Ra1
- 2.Sc2#
- 1...Rb1
- 2.Sc2#
- 1...Rd1
- 2.Sc2#
- 1...Re1
- 2.Sc2#
- 1...Rf1
- 2.Sc2#
- 1...Rg1
- 2.Sc2#
- 1...Rh1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Bc4
- 2.Rxc4#
- 1...Bb5
- 2.Sxb5#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sf7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...b5
- 2.Qd3#
- 1...e4!
- 1...Rxc3
- 1.Rc8?
- 1...Rxc3
- 2.dxc3#
- 1...Bxe2
- 2.Sxe2#
- 1...Sxf3
- 2.Qe4#
- 1...fxe3
- 2.dxe3#
- 1...Ra1
- 2.Sc2#
- 1...Rb1
- 2.Sc2#
- 1...Rd1
- 2.Sc2#
- 1...Re1
- 2.Sc2#
- 1...Rf1
- 2.Sc2#
- 1...Rg1
- 2.Sc2#
- 1...Rh1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Bc4
- 2.Rxc4#
- 1...Bb5
- 2.Sxb5#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sf7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...b5
- 2.Qd3#
- 1...e4!
- 1...Rxc3
- 1.Qb1?
- threat
- 2.Qxb6#
- 1...Rxb1
- 2.Sc2#
- 1...Rxc3
- 2.dxc3#
- 1...Bxe2
- 2.Sxe2#
- 1...Bb5
- 2.Sxb5#
- 1...Se4
- 2.Qxe4#
- 1...b5
- 2.Qd3#
- 2.Qb4#
- 1...e4!
- threat
- 1.f7?
- 1...Rxc3
- 2.dxc3#
- 1...Bxe2
- 2.Sxe2#
- 1...Sxf3
- 2.Qe4#
- 1...Sxf7
- 2.Qe4#
- 1...fxe3
- 2.dxe3#
- 1...Ra1
- 2.Sc2#
- 1...Rb1
- 2.Sc2#
- 1...Rd1
- 2.Sc2#
- 1...Re1
- 2.Sc2#
- 1...Rf1
- 2.Sc2#
- 1...Rg1
- 2.Sc2#
- 1...Rh1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Bc4
- 2.Rxc4#
- 1...Bb5
- 2.Sxb5#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sh7
- 2.Qe4#
- 1...b5
- 2.Qd3#
- 1...e4!
- 1...Rxc3
- 1.Kg7?
- Keys
- 1.Qf5!
- 1...Rxc3
- 2.dxc3#
- 1...Bxe2
- 2.Sxe2#
- 1...Sxf3
- 2.Qe4#
- 1...fxe3
- 2.dxe3#
- 1...exf5
- 2.Sxf5#
- 1...Ra1
- 2.Sc2#
- 1...Rb1
- 2.Sc2#
- 1...Rd1
- 2.Sc2#
- 1...Re1
- 2.Sc2#
- 1...Rf1
- 2.Sc2#
- 1...Rg1
- 2.Sc2#
- 1...Rh1
- 2.Sc2#
- 1...Rc2
- 2.Sxc2#
- 1...Bd3
- 2.Qxd3#
- 1...Bc4
- 2.Rxc4#
- 1...Bb5
- 2.Sxb5#
- 1...Sh3
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sf7
- 2.Qe4#
- 1...Sh7
- 2.Qe4#
- 1...e4
- 2.Rd7#
- 1...b5
- 2.Qd3#
- 1...Rxc3
- 1.Qf5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::S(D)
- R(a);N_GUARD::S(D),XR(a)
- R(a);OGATE,XS(C)::P(A),XR(a)
- B(f);XP(B)::S(C),XB(f)
- B(f);N_GUARD::QAR1(G),XB(f)
- B(f);N_GUARD::R1(H),XB(f)
- B(f);N_GUARD::S(C),XB(f)
- S(e);N_GUARD,XR(E)::QAR1(G)
- S(e);N_GUARD::QAR1(G)
- S(e);N_GUARD::QAR1(G),XS(e)
- P(c);OGATE,XS(D)::P(A),XP(c)
- P(g);S_CUTB(f)::QAR1(G)
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- R(a);OGATE,XS(C)::P(A),XR(a)
- B(f);XP(B)::S(C),XB(f)
- S(e);N_GUARD,XR(E)::QAR1(G)
- P(c);OGATE,XS(D)::P(A),XP(c)
- R(a);N_GUARD::S(D)
- R(a);N_GUARD::S(D),XR(a)
- B(f);N_GUARD::QAR1(G),XB(f)
- B(f);N_GUARD::R1(H),XB(f)
- B(f);N_GUARD::S(C),XB(f)
- S(e);N_GUARD::QAR1(G)
- S(e);N_GUARD::QAR1(G),XS(e)
- P(g);S_CUTB(f)::QAR1(G)
- Refutation
- P(d);
- Try
- R(H);
- Vars
- R(a);OGATE,XS(C)::P(A),XR(a)
- B(f);XP(B)::S(C),XB(f)
- S(e);N_GUARD,XR(E)::QAR1(G)
- P(c);OGATE,XS(D)::P(A),XP(c)
- R(a);N_GUARD::S(D)
- R(a);N_GUARD::S(D),XR(a)
- B(f);N_GUARD::QAR1(G),XB(f)
- B(f);N_GUARD::R1(H),XB(f)
- B(f);N_GUARD::S(C),XB(f)
- S(e);N_GUARD::QAR1(G)
- S(e);N_GUARD::QAR1(G),XS(e)
- P(g);S_CUTB(f)::QAR1(G)
- Refutation
- P(d);
- Try
- Q(G);
- Threat
- QAB(G),XP(g)
- Vars
- R(a);N_GUARD,XQ(G)::S(D)
- R(a);OGATE,XS(C)::P(A),XR(a)
- B(f);XP(B)::S(C),XB(f)
- B(f);N_GUARD::S(C),XB(f)
- S(e);N_GUARD::QAR1(G),XS(e)
- Refutation
- P(d);
- Try
- P(F);
- Vars
- R(a);OGATE,XS(C)::P(A),XR(a)
- B(f);XP(B)::S(C),XB(f)
- S(e);N_GUARD,XR(E)::QAR1(G)
- S(e);N_GUARD,XP(F)::QAR1(G)
- P(c);OGATE,XS(D)::P(A),XP(c)
- R(a);N_GUARD::S(D)
- R(a);N_GUARD::S(D),XR(a)
- B(f);N_GUARD::QAR1(G),XB(f)
- B(f);N_GUARD::R1(H),XB(f)
- B(f);N_GUARD::S(C),XB(f)
- S(e);N_GUARD::QAR1(G)
- S(e);N_GUARD::QAR1(G),XS(e)
- P(g);S_CUTB(f)::QAR1(G)
- Refutation
- P(d);
- Try
- Actual
- Q(G);
- Vars
- R(a);OGATE,XS(C)::P(A),XR(a)
- B(f);XP(B)::S(C),XB(f)
- S(e);N_GUARD,XR(E)::QAR1(G)
- P(c);OGATE,XS(D)::P(A),XP(c)
- P(h);XQ(G)::S(D),XP(h)
- R(a);N_GUARD::S(D)
- R(a);N_GUARD::S(D),XR(a)
- B(f);N_GUARD::QAR1(G),XB(f)
- B(f);N_GUARD::R1(H),XB(f)
- B(f);N_GUARD::S(C),XB(f)
- S(e);N_GUARD::QAR1(G)
- S(e);N_GUARD::QAR1(G),XS(e)
- P(d);::R(H)
- P(g);S_CUTB(f)::QAR1(G)
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).