MESON Chess Problem Database
Problem Display
PID: 214080 (k1K5/rp6/8/1B6/8/8/8/RR6 w - - 0 1)
Zalokotsky, Roman Fedorovich (aka Fedorovich, Roman)
Land og Folk, 1977
#2
4 + 3
| 15148 | Sadier Collection | 2020 |
| 5454 | Near Snap | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b6
- 2.Bc6#
- 1...Rxa1
- Tries
- 1.Bf1?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b5
- 2.Bg2#
- 1...b6
- 2.Bg2#
- 1...Ra6!
- 1...Rxa1
- 1.Be2?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b5
- 2.Bf3#
- 1...b6
- 2.Bf3#
- 1...Ra6!
- 1...Rxa1
- 1.Bd3?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b5
- 2.Be4#
- 1...b6
- 2.Be4#
- 1...Ra6!
- 1...Rxa1
- 1.Bc4?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b5
- 2.Bd5#
- 1...b6
- 2.Bd5#
- 1...Ra6!
- 1...Rxa1
- 1.Ba6?
- threat
- 2.Bxb7#
- 1...bxa6
- 2.Rb8#
- 1...b5
- 2.Bb7#
- 1...b6
- 2.Bb7#
- 1...Rxa6!
- threat
- 1.Bd7?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b5
- 2.Bc6#
- 1...b6
- 2.Bc6#
- 1...Ra6!
- 1...Rxa1
- 1.Be8?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b5
- 2.Bc6#
- 1...b6
- 2.Bc6#
- 1...Ra6!
- 1...Rxa1
- 1.Rc1?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b6
- 2.Bc6#
- 1...Ra6!
- 1...Rxa1
- 1.Rd1?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b6
- 2.Bc6#
- 1...Ra6!
- 1...Rxa1
- 1.Re1?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b6
- 2.Bc6#
- 1...Ra6!
- 1...Rxa1
- 1.Rf1?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b6
- 2.Bc6#
- 1...Ra6!
- 1...Rxa1
- 1.Rg1?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b6
- 2.Bc6#
- 1...Ra6!
- 1...Rxa1
- 1.Rh1?
- 1...Rxa1
- 2.Rxa1#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...b6
- 2.Bc6#
- 1...Ra6!
- 1...Rxa1
- 1.Bf1?
- Keys
- 1.Bc6!
- threat
- 2.Bxb7#
- 1...Rxa1
- 2.Rxa1#
- 1...bxc6
- 2.Rb8#
- 1...Ra2
- 2.Rxa2#
- 1...Ra3
- 2.Rxa3#
- 1...Ra4
- 2.Rxa4#
- 1...Ra5
- 2.Rxa5#
- 1...Ra6
- 2.Rxa6#
- threat
- 1.Bc6!
Anticipated by 94993(1961)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Tries
- Try
- B(C);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- B(C);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- B(C);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- B(C);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- B(C);N_PINR(a)
- Threat
- B(C),XP(b)
- Vars
- P(b);OGATE,XB(C)::R1(B)
- P(b);::B(C)
- Refutation
- R(a);P_SPINR(a),XB(C)
- Try
- B(C);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- B(C);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- R(B);
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- R(a);OGATEB::R(A),XR(a)
- P(b);OGATEB::B(C)
- Refutation
- R(a);
- Try
- Actual
- B(C);P_PINP(b)
- Threat
- B(C),XP(b)
- Vars
- R(a);N_SPINR(a),OGATE,XR(A)::R(B),XR(a)
- P(b);N_SPINP(b),OGATE,XB(C)::R1(B)
- R(a);OGATEB::R(A),XR(a)
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).