MESON Chess Problem Database
Problem Display
PID: 225836 (B1KbNR2/2R1p3/4k3/4Bbr1/1p3Q2/4n3/4r3/8 w - - 0 1)
Belik, Nikolai Ivanovich
2nd Prize, Praca, 1957
#2
7 + 8
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rh5
- 2.Sg7#
- 1...Rg7
- 2.Sxg7#
- 1...Bg6
- 2.Sg7#
- 1...Bxc7
- 2.Sxc7#
- 1...Sd5
- 2.Rc6#
- 1...Rh5
- Tries
- 1.Kxd8?
- threat
- 2.Rxe7#
- 1...Rg7
- 2.Sxg7#
- 1...Sd5
- 2.Rc6#
- 1...Rd2+!
- threat
- 1.Ba1?
- threat
- 2.Qe5#
- 1...Bxc7
- 2.Sxc7#
- 1...Bb1
- 2.Qf7#
- 1...Bc2
- 2.Qf7#
- 1...Bd3
- 2.Qf7#
- 1...Bh3
- 2.Qf7#
- 1...Be4
- 2.Qf7#
- 1...Bg4
- 2.Qf7#
- 1...Bg6
- 2.Sg7#
- 1...Bh7
- 2.Qf7#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Rc6#
- 1...Rb2!
- threat
- 1.Bb2?
- threat
- 2.Qe5#
- 1...Bxc7
- 2.Sxc7#
- 1...Bb1
- 2.Qf7#
- 1...Bc2
- 2.Qf7#
- 1...Bd3
- 2.Qf7#
- 1...Bh3
- 2.Qf7#
- 1...Be4
- 2.Qf7#
- 1...Bg4
- 2.Qf7#
- 1...Bg6
- 2.Sg7#
- 1...Bh7
- 2.Qf7#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Rc6#
- 1...Rxb2!
- threat
- 1.Bc3?
- threat
- 2.Qe5#
- 1...Bxc7
- 2.Sxc7#
- 1...Bb1
- 2.Qf7#
- 1...Bc2
- 2.Qf7#
- 1...Bd3
- 2.Qf7#
- 1...Bh3
- 2.Qf7#
- 1...Be4
- 2.Qf7#
- 1...Bg4
- 2.Qf7#
- 1...Bg6
- 2.Sg7#
- 1...Bh7
- 2.Qf7#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Rc6#
- 1...bxc3!
- threat
- 1.Bd6?
- threat
- 2.Qe5#
- 1...exd6
- 2.Qxd6#
- 1...Bb1
- 2.Qf7#
- 1...Bc2
- 2.Qf7#
- 1...Bd3
- 2.Qf7#
- 1...Bh3
- 2.Qf7#
- 1...Be4
- 2.Qf7#
- 1...Bg4
- 2.Qf7#
- 1...Bg6
- 2.Sg7#
- 1...Bh7
- 2.Qf7#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5!
- threat
- 1.Bg7?
- threat
- 2.Qe5#
- 1...Rxg7
- 2.Sxg7#
- 1...Bxc7
- 2.Sxc7#
- 1...Bb1
- 2.Qf7#
- 1...Bc2
- 2.Qf7#
- 1...Bd3
- 2.Qf7#
- 1...Bh3
- 2.Qf7#
- 1...Be4
- 2.Qf7#
- 1...Bg4
- 2.Qf7#
- 1...Bh7
- 2.Qf7#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Rc6#
- 1...Bg6!
- threat
- 1.Bd5+?
- 1...Sxd5
- 2.Rc6#
- 1...Kxd5+!
- 1...Sxd5
- 1.Rxe7+?
- 1...Bxe7
- 2.Sc7#
- 1...Kxe7+!
- 1...Bxe7
- 1.Kxd8?
- Keys
- 1.Bh8!
- threat
- 2.Qe5#
- 1...Bxc7
- 2.Sxc7#
- 1...Rg7
- 2.Sxg7#
- 1...Bb1
- 2.Qf7#
- 1...Bc2
- 2.Qf7#
- 1...Bd3
- 2.Qf7#
- 1...Bh3
- 2.Qf7#
- 1...Be4
- 2.Qf7#
- 1...Bg4
- 2.Qf7#
- 1...Bg6
- 2.Sg7#
- 1...Bh7
- 2.Qf7#
- 1...Sd1
- 2.Qc4#
- 1...Sf1
- 2.Qc4#
- 1...Sc2
- 2.Qc4#
- 1...Sg2
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Sg4
- 2.Qc4#
- 1...Sd5
- 2.Rc6#
- threat
- 1.Bh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 13
- REMOVED MATES = 1
- Sets
- R(e);N_GUARD::S(F)
- R(e);N_GUARD::S(F),XR(e)
- B(d);S_CUTR(e)::S(F)
- B(h);XR(C)::S(F),XB(h)
- S(b);SBLOCK::R(C)
- Tries
- Try
- K(E);P-FLIGHT,XB(h)
- Threat
- R1(C),XP(g)
- Vars
- R(e);N_GUARD::S(F),XR(e)
- S(b);SBLOCK::R(C)
- Refutation
- R(a);CHECK
- Try
- B(B);
- Threat
- QAR1(A)
- Vars
- B(h);XR(C)::S(F),XB(h)
- B(d);OGATE::QAB1(A)
- B(d);S_CUTR(e)::S(F)
- S(b);N_GUARD::QAB(A)
- S(b);N_GUARD::QAB(A),XS(b)
- S(b);SBLOCK::R(C)
- Refutation
- R(a);
- Try
- B(B);
- Threat
- QAR1(A)
- Vars
- B(h);XR(C)::S(F),XB(h)
- B(d);OGATE::QAB1(A)
- B(d);S_CUTR(e)::S(F)
- S(b);N_GUARD::QAB(A)
- S(b);N_GUARD::QAB(A),XS(b)
- S(b);SBLOCK::R(C)
- Refutation
- R(a);XB(B)
- Try
- B(B);
- Threat
- QAR1(A)
- Vars
- B(h);XR(C)::S(F),XB(h)
- B(d);OGATE::QAB1(A)
- B(d);S_CUTR(e)::S(F)
- S(b);N_GUARD::QAB(A)
- S(b);N_GUARD::QAB(A),XS(b)
- S(b);SBLOCK::R(C)
- Refutation
- P(c);XB(B)
- Try
- B(B);
- Threat
- QAR1(A)
- Vars
- P(g);OGATE,XB(B)::QAR1(A),XP(g)
- B(d);OGATE::QAB1(A)
- B(d);S_CUTR(e)::S(F)
- S(b);N_GUARD::QAB(A)
- S(b);N_GUARD::QAB(A),XS(b)
- Refutation
- S(b);
- Try
- B(B);
- Threat
- QAR1(A)
- Vars
- R(e);XB(B)::S(F),XR(e)
- B(h);XR(C)::S(F),XB(h)
- B(d);OGATE::QAB1(A)
- S(b);N_GUARD::QAB(A)
- S(b);N_GUARD::QAB(A),XS(b)
- S(b);SBLOCK::R(C)
- Refutation
- B(d);
- Try
- B(D);CHECK
- Vars
- S(b);SBLOCK,XB(D)::R(C)
- Refutation
- K(f);CHECK,S_FLIGHT,XB(D)
- Try
- R(C);CHECK,XP(g)
- Vars
- B(h);SBLOCK,XR(C)::S(F)
- Refutation
- K(f);CHECK,P-FLIGHT,XR(C)
- Try
- Actual
- B(B);
- Threat
- QAR1(A)
- Vars
- B(h);XR(C)::S(F),XB(h)
- R(e);N_GUARD::S(F),XR(e)
- B(d);OGATE::QAB1(A)
- B(d);S_CUTR(e)::S(F)
- S(b);N_GUARD::QAB(A)
- S(b);N_GUARD::QAB(A),XS(b)
- S(b);SBLOCK::R(C)
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).