MESON Chess Problem Database
Problem Display
PID: 227603 (8/1p3n1N/1K6/2p1P2n/p1Qb2R1/Rb1Np2k/4B1pP/6B1 w - - 0 1)
Hartong, Jan
2nd HM., Allgemeine Zeitung Chemnitz, 1926
#2
10 + 10
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Sf2#
- 1...Ba2
- 2.Sf2#
- 1...Bc2
- 2.Sf2#
- 1...Bxc4
- 2.Sf2#
- 1...Ba1
- 2.Rh4#
- 1...Bb2
- 2.Rh4#
- 1...Bc3
- 2.Rh4#
- 1...Bxe5
- 2.Rh4#
- 1...Sg3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...Sxe5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...Bd1
- Tries
- 1.Bd1?
- 1...Bxd1
- 2.Sf2#
- 1...Bxc4
- 2.Sf2#
- 1...Bxe5
- 2.Rh4#
- 1...Sxe5
- 2.Sg5#
- 1...Ba2
- 2.Sf2#
- 1...Bc2
- 2.Sf2#
- 1...Ba1
- 2.Rh4#
- 1...Bb2
- 2.Rh4#
- 1...Bc3
- 2.Rh4#
- 1...Sg3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...e2!
- 1...Bxd1
- 1.Rxb3?
- threat
- 2.Sf2#
- 1...Bc3
- 2.Rh4#
- 1...Sg3
- 2.Sf4#
- 1...axb3!
- threat
- 1.Qd5?
- threat
- 2.Qxg2#
- 1...Bxd5
- 2.Sf2#
- 1...Sg3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 2.Qf3#
- 1...c4+!
- threat
- 1.Qxf7?
- threat
- 2.Sg5#
- 2.Qxh5#
- 1...Bxf7
- 2.Sf2#
- 2.Sg5#
- 1...Sg3
- 2.Sf4#
- 2.Sg5#
- 1...Sf4
- 2.Sxf4#
- 2.Sg5#
- 1...Sf6
- 2.Sf4#
- 2.Sg5#
- 1...Sg7
- 2.Sf4#
- 2.Sg5#
- 2.Qf3#
- 1...c4+!
- threat
- 1.Qxa4?
- 1...Bxa4
- 2.Sf2#
- 1...Bxe5
- 2.Rh4#
- 1...Sxe5
- 2.Sg5#
- 1...Bd1
- 2.Sf2#
- 1...Ba2
- 2.Sf2#
- 1...Bc2
- 2.Sf2#
- 1...Bc4
- 2.Sf2#
- 1...Bd5
- 2.Sf2#
- 1...Be6
- 2.Sf2#
- 1...Ba1
- 2.Rh4#
- 1...Bb2
- 2.Rh4#
- 1...Bc3
- 2.Rh4#
- 1...Sg3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...c4+!
- 1...Bxa4
- 1.Qxd4?
- threat
- 2.Rh4#
- 1...Sf4
- 2.Sxf4#
- 2.Qxe3#
- 1...cxd4!
- threat
- 1.e6?
- 1...Bxc4
- 2.Sf2#
- 1...Bd1
- 2.Sf2#
- 1...Ba2
- 2.Sf2#
- 1...Bc2
- 2.Sf2#
- 1...Ba1
- 2.Rh4#
- 1...Bb2
- 2.Rh4#
- 1...Bc3
- 2.Rh4#
- 1...Be5
- 2.Rh4#
- 1...Bg7
- 2.Rh4#
- 1...Bh8
- 2.Rh4#
- 1...Sg3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...Se5
- 2.Sg5#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...Bf6!
- 1...Bxc4
- 1.Bd1?
- Keys
- 1.Qe6!
- 1...c4+
- 2.Rxd4#
- 1...Bxe6
- 2.Sf2#
- 1...Bxe5
- 2.Rc4#
- 1...Sxe5
- 2.Sg5#
- 1...Bd1
- 2.Sf2#
- 2.Rxd4#
- 2.Re4#
- 2.Rf4#
- 1...Ba2
- 2.Sf2#
- 1...Bc2
- 2.Sf2#
- 2.Rxd4#
- 2.Re4#
- 2.Rf4#
- 1...Bc4
- 2.Sf2#
- 1...Bd5
- 2.Sf2#
- 1...Ba1
- 2.Rc4#
- 1...Bb2
- 2.Rc4#
- 1...Bc3
- 2.Rc4#
- 1...Sg3
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sf6
- 2.Sf4#
- 1...Sg7
- 2.Sf4#
- 1...Sg5
- 2.Sxg5#
- 1...Sd6
- 2.Sg5#
- 1...Sh6
- 2.Sg5#
- 1...Sd8
- 2.Sg5#
- 1...Sh8
- 2.Sg5#
- 1...c4+
- 1.Qe6!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 3
- REMOVED MATES = 2
- Sets
- B(b);S_CUTP(c)::S(E)
- B(b);S_CUTP(c),XQ(F)::S(E)
- B(f);::R1(G)
- B(f);XP(H)::R1(G)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- S(j);N_GUARD,XP(H)::S(J)
- S(j);N_GUARD::S(J),XS(j)
- S(j);N_GUARD::S(J)
- Tries
- Try
- B(B);
- Vars
- B(b);S_CUTP(c),XB(B)::S(E)
- B(b);S_CUTP(c),XQ(F)::S(E)
- B(f);XP(H)::R1(G)
- S(j);N_GUARD,XP(H)::S(J)
- B(b);S_CUTP(c)::S(E)
- B(f);::R1(G)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- S(j);N_GUARD::S(J),XS(j)
- S(j);N_GUARD::S(J)
- Refutation
- P(c);
- Try
- R(D);XB(b)
- Threat
- S(E)
- Vars
- B(f);::R1(G)
- S(h);N_GUARD::S(E)
- Refutation
- P(e);XR(D)
- Try
- Q(F);
- Threat
- QAB1(F),XP(a)
- Vars
- B(b);S_CUTP(c),XQ(F)::S(E)
- S(h);N_GUARD::S(E)
- Refutation
- P(g);CHECK
- Try
- Q(F);XS(j)
- Threat
- DUALS(2)
- Refutation
- P(g);CHECK
- Try
- Q(F);XP(e)
- Vars
- B(b);S_CUTP(c),XQ(F)::S(E)
- B(f);XP(H)::R1(G)
- S(j);N_GUARD,XP(H)::S(J)
- B(b);S_CUTP(c)::S(E)
- B(f);::R1(G)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- S(j);N_GUARD::S(J),XS(j)
- S(j);N_GUARD::S(J)
- Refutation
- P(g);CHECK
- Try
- Q(F);XB(f)
- Threat
- R1(G)
- Refutation
- P(g);XQ(F)
- Try
- P(H);
- Vars
- B(b);S_CUTP(c),XQ(F)::S(E)
- B(b);S_CUTP(c)::S(E)
- B(f);::R1(G)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- S(j);N_GUARD::S(J)
- S(j);N_GUARD::S(J),XS(j)
- Refutation
- B(f);
- Try
- Actual
- Q(F);
- Vars
- P(g);CHECK,S_CUTB(b)::QAB(F)+R(G),XB(f)
- B(b);S_CUTP(c),XQ(F)::S(E)
- B(f);OGATE,XP(H)::QAB(F)+R(G)
- S(j);N_GUARD,XP(H)::S(J)
- B(b);S_CUTP(c)::S(E)
- B(f);OGATE::QAB(F)+R(G)
- S(h);N_GUARD::S(E)
- S(h);N_GUARD::S(E),XS(h)
- S(j);N_GUARD::S(J),XS(j)
- S(j);N_GUARD::S(J)
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).