MESON Chess Problem Database
Problem Display
PID: 242691 (K2bR3/1n3r1N/8/4P2R/N1P1kp1p/1Q2B2B/4P2n/1br5 w - - 0 1)
Hartong, Jan
Szachy, 1951
#2
11 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Rc2
- 2.Qd3#
- 1...Rf5
- 2.Bxf5#
- 1...Rf6
- 2.Sg5#
- 1...Rc7
- 2.Bf5#
- 1...Rd7
- 2.Bf5#
- 1...Re7
- 2.Sf6#
- 1...Rg7
- 2.Bf5#
- 1...Rxh7
- 2.Bf5#
- 1...Ba2
- 2.Qd3#
- 1...Bd3
- 2.Qxd3#
- 1...Ba5
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 1...Bb6
- 2.Sg5#
- 1...Bf6
- 2.Bf5#
- 1...Bc7
- 2.Sg5#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Rc2
- Tries
- 1.Sf6+?
- 1...Bxf6
- 2.Bf5#
- 1...Rxf6!
- 1...Bxf6
- 1.Bg1?
- 1...Rxc4
- 2.Qxc4#
- 1...Rxh7
- 2.Bf5#
- 1...f3
- 2.Qe3#
- 1...Rd1
- 2.Sc3#
- 1...Re1
- 2.Sc3#
- 1...Rf1
- 2.Sc3#
- 1...Rc2
- 2.Qd3#
- 1...Rc3
- 2.Sxc3#
- 1...Rf5
- 2.Bxf5#
- 2.Qxb7#
- 1...Rf6
- 2.Sg5#
- 1...Rc7
- 2.Bf5#
- 1...Rd7
- 2.Bf5#
- 1...Re7
- 2.Sf6#
- 1...Rg7
- 2.Bf5#
- 1...Rf8
- 2.Qxb7#
- 1...Ba2
- 2.Qd3#
- 1...Bc2
- 2.Sc3#
- 1...Bd3
- 2.Qxd3#
- 1...Ba5
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 1...Bb6
- 2.Sg5#
- 1...Bf6
- 2.Bf5#
- 1...Bc7
- 2.Sg5#
- 2.Qxb7#
- 1...Be7
- 2.Qxb7#
- 1...Sf1
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 2.exf3#
- 1...Sg4
- 2.Qf3#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Rxg1!
- 1...Rxc4
- 1.Bg2+?
- 1...Sf3
- 2.Bxf3#
- 2.exf3#
- 1...f3!
- 1...Sf3
- 1.Sf6+?
- Keys
- 1.Bf2!
- 1...Rxc4
- 2.Qxc4#
- 1...Rxh7
- 2.Bf5#
- 1...f3
- 2.Qe3#
- 1...Rd1
- 2.Sc3#
- 1...Re1
- 2.Sc3#
- 1...Rf1
- 2.Sc3#
- 1...Rg1
- 2.Sc3#
- 1...Rh1
- 2.Sc3#
- 1...Rc2
- 2.Qd3#
- 1...Rc3
- 2.Sxc3#
- 1...Rf5
- 2.Bxf5#
- 2.Qxb7#
- 1...Rf6
- 2.Sg5#
- 1...Rc7
- 2.Bf5#
- 1...Rd7
- 2.Bf5#
- 1...Re7
- 2.Sf6#
- 1...Rg7
- 2.Bf5#
- 1...Rf8
- 2.Qxb7#
- 1...Ba2
- 2.Qd3#
- 1...Bc2
- 2.Sc3#
- 1...Bd3
- 2.Qxd3#
- 1...Ba5
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 1...Bb6
- 2.Sg5#
- 1...Bf6
- 2.Bf5#
- 1...Bc7
- 2.Sg5#
- 2.Qxb7#
- 1...Be7
- 2.Qxb7#
- 1...Sf1
- 2.Qf3#
- 1...Sf3
- 2.Qxf3#
- 2.exf3#
- 1...Sg4
- 2.Qf3#
- 1...Sa5
- 2.Sc5#
- 1...Sc5
- 2.Sxc5#
- 1...Sd6
- 2.Sc5#
- 1...Rxc4
- 1.Bf2!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 2
- Sets
- R(b);S_CUTB(a)::QAB1(B)
- R(h);N_GUARD::B(D),XR(h)
- R(h);S_CUTB(i)::S(I)
- R(h);N_GUARD::B(D)
- R(h);N_GUARD,S_CUTB(i)::S(I)
- R(h);N_GUARD,XS(I)::B(D)
- B(a);N_GUARD::QAB1(B)
- B(a);N_GUARD::QAB1(B),XB(a)
- B(i);N_GUARD::S(I)
- B(i);N_GUARD::S(I),XB(i)
- B(i);S_CUTR(h)::B(D)
- S(g);N_GUARD::S(E)
- S(g);N_GUARD::S(E),XS(g)
- Tries
- Try
- S(I);CHECK
- Vars
- B(i);XS(I)::B(D)
- Refutation
- R(h);XS(I)
- Try
- B(C);
- Vars
- R(b);OGATE,XP(F)::QAR2(B),XR(b)
- R(h);N_GUARD,XS(I)::B(D)
- P(e);N_GUARD::QAR1(B)
- R(b);N_GUARD::S(E)
- R(b);S_CUTB(a)::QAB1(B)
- R(b);N_GUARD::S(E),XR(b)
- R(h);S_CUTB(i)::S(I)
- R(h);N_GUARD::B(D)
- R(h);N_GUARD,S_CUTB(i)::S(I)
- R(h);N_GUARD::QAB(B),XS(g)
- B(a);N_GUARD::QAB1(B)
- B(a);S_CUTR(b)::S(E)
- B(a);N_GUARD::QAB1(B),XB(a)
- B(i);N_GUARD::S(I)
- B(i);N_GUARD::S(I),XB(i)
- B(i);S_CUTR(h)::B(D)
- B(i);S_CUTR(h)::QAB(B),XS(g)
- S(c);N_GUARD::QAB1(B)
- S(g);N_GUARD::S(E)
- S(g);N_GUARD::S(E),XS(g)
- Refutation
- R(b);XB(C)
- Try
- B(D);CHECK
- Refutation
- P(e);P_SPINP(e)
- Try
- Actual
- B(C);
- Vars
- R(b);OGATE,XP(F)::QAR2(B),XR(b)
- R(h);N_GUARD,XS(I)::B(D)
- P(e);N_GUARD::QAR1(B)
- R(b);N_GUARD::S(E)
- R(b);S_CUTB(a)::QAB1(B)
- R(b);N_GUARD::S(E),XR(b)
- R(h);S_CUTB(i)::S(I)
- R(h);N_GUARD::B(D)
- R(h);N_GUARD,S_CUTB(i)::S(I)
- R(h);N_GUARD::QAB(B),XS(g)
- B(a);N_GUARD::QAB1(B)
- B(a);S_CUTR(b)::S(E)
- B(a);N_GUARD::QAB1(B),XB(a)
- B(i);N_GUARD::S(I)
- B(i);N_GUARD::S(I),XB(i)
- B(i);S_CUTR(h)::B(D)
- B(i);S_CUTR(h)::QAB(B),XS(g)
- S(c);N_GUARD::QAB1(B)
- S(g);N_GUARD::S(E)
- S(g);N_GUARD::S(E),XS(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).