MESON Chess Problem Database
Problem Display
PID: 234755 (k1q5/2p5/B2Q4/R7/8/8/3K4/8 w - - 0 1)
Lincoln, Robert A
Kudesnik, 2015
#2
4 + 3
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...c5
- 2.Bxc8#
- 1...c6
- 2.Bxc8#
- 1...c5
- Tries
- 1.Qxc7?
- threat
- 2.Bb7#
- 2.Bxc8#
- 1...Qd7+
- 2.Bd3#
- 1...Qd8+
- 2.Bd3#
- 1...Qxa6
- 2.Rxa6#
- 1...Qb7
- 2.Bxb7#
- 2.Qxb7#
- 1...Qh3
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bb7#
- 2.Bc8#
- 2.Qb7#
- 1...Qg4
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bb7#
- 2.Bc8#
- 2.Qb7#
- 1...Qf5
- 2.Bb5#
- 2.Bb7#
- 2.Qb7#
- 1...Qe6
- 2.Bb7#
- 2.Qb7#
- 1...Qb8
- 2.Bb7#
- 1...Qe8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bb7#
- 2.Bc8#
- 2.Qb7#
- 1...Qf8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bb7#
- 2.Bc8#
- 2.Qb7#
- 1...Qg8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bb7#
- 2.Bc8#
- 2.Qb7#
- 1...Qh8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bb7#
- 2.Bc8#
- 2.Qb7#
- 1...Qxc7!
- threat
- 1.Qb6?
- threat
- 2.Bxc8#
- 1...Qd7+
- 2.Bd3#
- 1...Qd8+
- 2.Bd3#
- 1...Qxa6
- 2.Rxa6#
- 1...Qb7
- 2.Qxb7#
- 1...Qh3
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bc8#
- 2.Qb7#
- 1...Qg4
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bc8#
- 2.Qb7#
- 1...Qf5
- 2.Bb5#
- 2.Qb7#
- 1...Qe6
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bc8#
- 2.Qb7#
- 1...Qb8
- 2.Bb7#
- 1...Qe8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bc8#
- 2.Qb7#
- 1...Qf8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bc8#
- 2.Qb7#
- 1...Qg8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bc8#
- 2.Qb7#
- 1...Qh8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bb5#
- 2.Bc8#
- 2.Qb7#
- 1...cxb6!
- threat
- 1.Qxc7?
- Keys
- 1.Qb4!
- threat
- 2.Bxc8#
- 1...Qd7+
- 2.Bd3#
- 1...Qd8+
- 2.Bd3#
- 1...Ka7
- 2.Bxc8#
- 1...Qxa6
- 2.Rxa6#
- 1...Qb7
- 2.Qxb7#
- 1...Qh3
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bc8#
- 2.Qb7#
- 1...Qg4
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bc8#
- 2.Qb7#
- 1...Qf5
- 2.Qb7#
- 1...Qe6
- 2.Qb7#
- 1...Qb8
- 2.Bb7#
- 1...Qe8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bc8#
- 2.Qb7#
- 1...Qf8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bc8#
- 2.Qb7#
- 1...Qg8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bc8#
- 2.Qb7#
- 1...Qh8
- 2.Bf1#
- 2.Be2#
- 2.Bd3#
- 2.Bc4#
- 2.Bc8#
- 2.Qb7#
- threat
- 1.Qb4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 2
- Sets
- P(a);::R(B)+B(C),XQ(c)
- Tries
- Try
- Q(D);XP(a)
- Threat
- DUALS(2)
- Vars
- Q(c);CHECK,N_GUARD::R(B)+B(C)
- Q(c);OGATE,P_SPINQ(c),XB(C)::R(B),XQ(c)
- Q(c);::R(B)+B(C),DCHECK
- Refutation
- Q(c);XQ(D)
- Try
- Q(D);
- Threat
- R(B)+B(C),XQ(c)
- Vars
- Q(c);CHECK,N_GUARD::R(B)+B(C)
- Q(c);OGATE,P_SPINQ(c),XB(C)::R(B),XQ(c)
- Q(c);N_GUARD::QAB1(D),XQ(c)
- Q(c);SBLOCK::R(B)+B(C),DCHECK
- Refutation
- P(a);XQ(D)
- Try
- Actual
- Q(D);
- Threat
- R(B)+B(C),XQ(c)
- Vars
- Q(c);CHECK,N_GUARD::R(B)+B(C)
- K(b);P-FLIGHT::R(B)+B(C),XQ(c)
- Q(c);OGATE,P_SPINQ(c),XB(C)::R(B),XQ(c)
- Q(c);N_GUARD::QAB1(D),XQ(c)
- Q(c);N_GUARD::QAB1(D)
- Q(c);SBLOCK::R(B)+B(C),DCHECK
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).