MESON Chess Problem Database
Problem Display
PID: 183968 (k2BB2R/3N4/1Kp5/4P3/1p6/5r2/N1P5/R5r1 w - - 0 1)
Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)
Suomen Shakki, 1980
#2
9 + 5
| 3713 | Snap | 2018 |
| 5454 | Near Snap | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Rg2
- 2.Sc3#
- 1...Rgg3
- 2.Sc3#
- 1...Rg4
- 2.Sc3#
- 1...Rg5
- 2.Sc3#
- 1...Rg6
- 2.Sc3#
- 1...Rg7
- 2.Sc3#
- 1...Rg8
- 2.Sc3#
- 1...Rf1
- 2.Sc1#
- 1...Rf2
- 2.Sc1#
- 1...Rf4
- 2.Sc1#
- 1...Rf5
- 2.Sc1#
- 1...Rf6
- 2.Sc1#
- 1...Rf7
- 2.Sc1#
- 1...Rf8
- 2.Sc1#
- 1...b3
- 2.Sc1#
- 1...Rg2
- Tries
- 1.Sxb4+?
- 1...Ra3
- 2.Rxa3#
- 1...Rxa1!
- 1...Ra3
- 1.Bh4?
- 1...Rxa1
- 2.Bf7#
- 1...Rb1
- 2.Bf7#
- 1...Rc1
- 2.Bf7#
- 1...Rd1
- 2.Bf7#
- 1...Re1
- 2.Bf7#
- 1...Rgf1
- 2.Bf7#
- 1...Rh1
- 2.Bf7#
- 1...Rg2
- 2.Sc3#
- 1...Rgg3
- 2.Sc3#
- 1...Rg4
- 2.Sc3#
- 1...Rg5
- 2.Sc3#
- 1...Rg6
- 2.Sc3#
- 1...Rg7
- 2.Sc3#
- 1...Rg8
- 2.Sc3#
- 1...Rff1
- 2.Sc1#
- 1...Rf2
- 2.Sc1#
- 1...Ra3
- 2.Bg6#
- 1...Rb3
- 2.Bg6#
- 1...Rc3
- 2.Bg6#
- 1...Rd3
- 2.Bg6#
- 1...Re3
- 2.Bg6#
- 1...Rfg3
- 2.Bg6#
- 1...Rh3
- 2.Bg6#
- 1...Rf4
- 2.Sc1#
- 1...Rf5
- 2.Sc1#
- 1...Rf6
- 2.Sc1#
- 1...Rf7
- 2.Sc1#
- 1...Rf8
- 2.Sc1#
- 1...b3
- 2.Sc1#
- 1...c5!
- 1...Rxa1
- 1.Bg5?
- threat
- 2.Bf7#
- 1...Rxg5
- 2.Sc3#
- 1...Rh3
- 2.Bh5#
- 1...Rf7
- 2.Sc1#
- 2.Bxf7#
- 1...Rf8
- 2.Sc1#
- 1...Rh1!
- threat
- 1.Bf6?
- threat
- 2.Bg6#
- 1...Rxf6
- 2.Sc1#
- 1...Rh1
- 2.Bh5#
- 1...Rg6
- 2.Sc3#
- 2.Bxg6#
- 1...Rg7
- 2.Sc3#
- 1...Rg8
- 2.Sc3#
- 1...Rh3!
- threat
- 1.Bg6?
- threat
- 2.Bf6#
- 1...Rxg6
- 2.Sc3#
- 1...Rh3
- 2.Bh4#
- 1...Rf6
- 2.Sc1#
- 2.Bxf6#
- 1...Rf7
- 2.Sc1#
- 1...Rf8
- 2.Sc1#
- 1...Rh1!
- threat
- 1.Bf7?
- threat
- 2.Bg5#
- 1...Rxf7
- 2.Sc1#
- 1...Rh1
- 2.Bh4#
- 1...Rg5
- 2.Sc3#
- 2.Bxg5#
- 1...Rg6
- 2.Sc3#
- 1...Rg7
- 2.Sc3#
- 1...Rg8
- 2.Sc3#
- 1...Rf6
- 2.Sc1#
- 1...Rh3!
- threat
- 1.Sxb4+?
- Keys
- 1.Bh5!
- 1...Rxa1
- 2.Bf6#
- 1...Rh1
- 2.Bf6#
- 1...Rb1
- 2.Bf6#
- 1...Rc1
- 2.Bf6#
- 1...Rd1
- 2.Bf6#
- 1...Re1
- 2.Bf6#
- 1...Rgf1
- 2.Bf6#
- 1...Rg2
- 2.Sc3#
- 1...Rgg3
- 2.Sc3#
- 1...Rg4
- 2.Sc3#
- 1...Rg5
- 2.Sc3#
- 1...Rg6
- 2.Sc3#
- 1...Rg7
- 2.Sc3#
- 1...Rg8
- 2.Sc3#
- 1...Rff1
- 2.Sc1#
- 1...Rf2
- 2.Sc1#
- 1...Ra3
- 2.Bg5#
- 1...Rb3
- 2.Bg5#
- 1...Rc3
- 2.Bg5#
- 1...Rd3
- 2.Bg5#
- 1...Re3
- 2.Bg5#
- 1...Rfg3
- 2.Bg5#
- 1...Rh3
- 2.Bg5#
- 1...Rf4
- 2.Sc1#
- 1...Rf5
- 2.Sc1#
- 1...Rf6
- 2.Sc1#
- 1...Rf7
- 2.Sc1#
- 1...Rf8
- 2.Sc1#
- 1...b3
- 2.Sc1#
- 1...c5
- 2.Bxf3#
- 1...Rxa1
- 1.Bh5!
Anticipated by 109563(1964)
This anticipates 68835(1981)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 15
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD::R(A)+S(B)
- R(b);N_GUARD::R(A)+S(B)
- P(c);S_CUTR(b)::R(A)+S(B)
- Tries
- Try
- S(B);CHECK,XP(c)
- Vars
- R(b);N_GUARD,P_SPINR(b)::R(A),XR(b)
- Refutation
- R(a);XR(A)
- Try
- B(G);
- Vars
- R(a);N_GUARD,XR(A)::R(I)+B(H)
- R(a);N_GUARD::R(I)+B(H)
- R(a);N_GUARD::R(A)+S(B)
- R(b);N_GUARD::R(A)+S(B)
- R(b);N_GUARD::R(I)+B(H)
- P(c);S_CUTR(b)::R(A)+S(B)
- Refutation
- P(d);
- Try
- B(G);
- Threat
- R(I)+B(H)
- Vars
- R(a);N_GUARD,XB(G)::R(A)+S(B)
- R(b);N_GUARD::R(I)+B(H)
- R(b);N_GUARD::R(A)+S(B)
- Refutation
- R(a);
- Try
- B(G);
- Threat
- R(I)+B(H)
- Vars
- R(b);N_GUARD,XB(G)::R(A)+S(B)
- R(a);N_GUARD::R(I)+B(H)
- R(a);N_GUARD::R(A)+S(B)
- Refutation
- R(b);
- Try
- B(H);
- Threat
- R(I)+B(G)
- Vars
- R(a);N_GUARD,XB(H)::R(A)+S(B)
- R(b);N_GUARD::R(I)+B(G)
- R(b);N_GUARD::R(A)+S(B)
- Refutation
- R(a);
- Try
- B(H);
- Threat
- R(I)+B(G)
- Vars
- R(b);N_GUARD,XB(H)::R(A)+S(B)
- R(a);N_GUARD::R(I)+B(G)
- R(a);N_GUARD::R(A)+S(B)
- R(b);N_GUARD::R(A)+S(B)
- Refutation
- R(b);
- Try
- Actual
- B(H);
- Vars
- R(a);N_GUARD,XR(A)::R(I)+B(G)
- R(a);N_GUARD::R(I)+B(G)
- R(a);N_GUARD::R(A)+S(B)
- R(b);N_GUARD::R(A)+S(B)
- R(b);N_GUARD::R(I)+B(G)
- P(c);S_CUTR(b)::R(A)+S(B)
- P(d);OGATEB::B(H),XR(b)
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).