MESON Chess Problem Database
Problem Display
PID: 243404 (4R3/4N3/4p3/4bp2/2PR2p1/B1p1k1p1/2B1n1P1/4K2Q w - - 0 1)
Bata, Lorinc
Shakhmaty v SSSR, 1948
#2
9 + 8
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Bxd4
- 2.Sd5#
- 1...Bf4
- 2.Sxf5#
- 1...Bd6
- 2.Sxf5#
- 1...Bf6
- 2.Sxf5#
- 1...Bc7
- 2.Sxf5#
- 1...Bg7
- 2.Sxf5#
- 1...Bb8
- 2.Sxf5#
- 1...Bh8
- 2.Sxf5#
- 1...Sc1
- 2.Qg1#
- 1...Sg1
- 2.Qxg1#
- 1...Sxd4
- 2.Bc1#
- 1...Sf4
- 2.Qg1#
- 1...f4
- 2.Re4#
- 1...Bxd4
- Tries
- 1.Bc1+?
- 1...Sxc1
- 2.Qg1#
- 1...Kxd4!
- 1...Sxc1
- 1.Bc5?
- threat
- 2.Re4#
- 1...Bxd4
- 2.Sd5#
- 1...Sxd4!
- threat
- 1.Rd1?
- 1...Kf4
- 2.Qh6#
- 1...Bd4
- 2.Sd5#
- 1...Bf4
- 2.Sd5#
- 2.Sxf5#
- 1...Bd6
- 2.Sd5#
- 1...Bf6
- 2.Sd5#
- 1...Bc7
- 2.Sd5#
- 1...Bg7
- 2.Sd5#
- 1...Bb8
- 2.Sd5#
- 1...Bh8
- 2.Sd5#
- 1...Sc1
- 2.Bxc1#
- 1...Sg1
- 2.Bc1#
- 1...Sd4
- 2.Bc1#
- 1...Sf4
- 2.Bc1#
- 2.Qg1#
- 1...f4!
- 1...Kf4
- 1.Qf1?
- 1...Bxd4
- 2.Sd5#
- 2.Sxf5#
- 1...Sxd4
- 2.Bc1#
- 1...Bf6
- 2.Sxf5#
- 1...Bf4
- 2.Sxf5#
- 1...Bd6
- 2.Sxf5#
- 1...Bc7
- 2.Sxf5#
- 1...Bg7
- 2.Sxf5#
- 1...Bb8
- 2.Sxf5#
- 1...Bh8
- 2.Sxf5#
- 1...Sc1
- 2.Qg1#
- 1...Sg1
- 2.Qd3#
- 2.Qxg1#
- 1...Sf4
- 2.Qg1#
- 1...f4
- 2.Re4#
- 1...Kxd4!
- 1...Bxd4
- 1.Qh8?
- threat
- 2.Qxe5#
- 1...Bxd4
- 2.Sd5#
- 1...Bxh8
- 2.Sxf5#
- 1...Bf4
- 2.Sd5#
- 2.Sxf5#
- 1...Bd6
- 2.Sd5#
- 2.Sxf5#
- 1...Bf6
- 2.Sxf5#
- 1...Bc7
- 2.Sd5#
- 2.Sxf5#
- 1...Bg7
- 2.Sxf5#
- 1...Bb8
- 2.Sd5#
- 2.Sxf5#
- 1...Kxd4!
- threat
- 1.c5?
- 1...Bxd4
- 2.Sd5#
- 1...Sxd4
- 2.Bc1#
- 1...Sc1
- 2.Qg1#
- 1...Bf4
- 2.Sxf5#
- 1...Bd6
- 2.Sxf5#
- 1...Bf6
- 2.Sxf5#
- 1...Bc7
- 2.Sxf5#
- 1...Bg7
- 2.Sxf5#
- 1...Bb8
- 2.Sxf5#
- 1...Bh8
- 2.Sxf5#
- 1...Sg1
- 2.Qxg1#
- 1...Sf4
- 2.Qg1#
- 1...f4
- 2.Re4#
- 1...Kxd4!
- 1...Bxd4
- 1.Bc1+?
- Keys
- 1.Rf4!
- 1...Kxf4
- 2.Qh6#
- 1...Bxf4
- 2.Sxf5#
- 1...Sxf4
- 2.Qg1#
- 1...Bd4
- 2.Sd5#
- 1...Bd6
- 2.Sd5#
- 1...Bf6
- 2.Sd5#
- 1...Bc7
- 2.Sd5#
- 1...Bg7
- 2.Sd5#
- 1...Bb8
- 2.Sd5#
- 1...Bh8
- 2.Sd5#
- 1...Sc1
- 2.Bxc1#
- 1...Sg1
- 2.Bc1#
- 1...Sd4
- 2.Bc1#
- 1...Kxf4
- 1.Rf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 8
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(f);SBLOCK,S_CUTP(h),XR(G)::S(H)
- B(f);S_CUTP(h)::S(H),XP(g)
- S(a);N_GUARD::QAB(B)
- S(a);N_GUARD::QAB(B),XS(a)
- S(a);N_GUARD,SBLOCK,XR(G)::B(E)
- P(g);N_GUARD::R1(G)
- Tries
- Try
- B(E);CHECK
- Vars
- S(a);XB(E)::QAB(B)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- B(E);
- Threat
- B(E)+R(G),DCHECK
- Vars
- B(f);P_SPINB(f),S_CUTP(h),XR(G)::S(H)
- Refutation
- S(a);P_SPINS(a),XR(G)
- Try
- R(G);
- Vars
- K(c);S_FLIGHT::QAB(B)
- B(f);S_CUTP(h)::S(H)
- S(a);N_GUARD::B(E),XS(a)
- S(a);N_GUARD::B(E)
- Refutation
- P(g);
- Try
- Q(B);
- Vars
- S(a);N_GUARD,SBLOCK,XR(G)::B(E)
- B(f);S_CUTP(h)::S(H),XP(g)
- S(a);N_GUARD::QAB(B)
- P(g);N_GUARD::R1(G)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Q(B);
- Threat
- QAR2(B),XB(f)
- Vars
- B(f);S_CUTP(h),XR(G)::S(H)
- B(f);S_CUTP(h),XQ(B)::S(H),XP(g)
- B(f);S_CUTP(h)::S(H),XP(g)
- Refutation
- K(c);P_SPINB(f),S_FLIGHT,XR(G)
- Try
- P(F);
- Vars
- B(f);SBLOCK,S_CUTP(h),XR(G)::S(H)
- S(a);N_GUARD,SBLOCK,XR(G)::B(E)
- S(a);N_GUARD::QAB(B)
- B(f);S_CUTP(h)::S(H),XP(g)
- S(a);N_GUARD::QAB(B),XS(a)
- P(g);N_GUARD::R1(G)
- Refutation
- K(c);S_FLIGHT,XR(G)
- Try
- Actual
- R(G);
- Vars
- K(c);OGATEB,S_FLIGHT,XR(G)::QAB(B)
- B(f);SBLOCK,S_CUTP(h),XR(G)::S(H),XP(g)
- S(a);N_GUARD,SBLOCK,XR(G)::QAB(B)
- B(f);S_CUTP(h)::S(H)
- S(a);N_GUARD::B(E),XS(a)
- S(a);N_GUARD::B(E)
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).