MESON Chess Problem Database
Problem Display
PID: 19164 (R7/8/8/b7/b1Q5/k7/2P5/K7 w - - 0 1)
Massmann, Wilhelm Karl Heinrich
Kieler Neueste Nachrichten, 1934
#2
4 + 3
| 2838 | Fun with Chess Miniatures | 1996 |
| 56 | The Problemist | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bb3
- 2.Qxb3#
- 1...Bb5
- 2.Qb3#
- 1...Bc6
- 2.Qb3#
- 1...Bd7
- 2.Qb3#
- 1...Be8
- 2.Qb3#
- 1...Be1
- 2.Rxa4#
- 2.Qb3#
- 2.Qxa4#
- 1...Bd2
- 2.Rxa4#
- 2.Qb3#
- 2.Qxa4#
- 1...Bc3+
- 2.Qxc3#
- 1...Bb4
- 2.Qa2#
- 2.Qb3#
- 1...Bb6
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 1...Bc7
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 2.Qc5#
- 1...Bd8
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 2.Qc5#
- 1...Bb3
- Tries
- 1.Kb1?
- 1...Bb3
- 2.Qxb3#
- 1...Bb5
- 2.Qb3#
- 1...Bc6
- 2.Qb3#
- 1...Bd7
- 2.Qb3#
- 1...Be8
- 2.Qb3#
- 1...Be1
- 2.Rxa4#
- 2.Qb3#
- 2.Qxa4#
- 1...Bd2
- 2.Rxa4#
- 2.Qb3#
- 2.Qxa4#
- 1...Bc3
- 2.Rxa4#
- 2.Qb3#
- 2.Qxc3#
- 2.Qxa4#
- 1...Bb4
- 2.Qa2#
- 2.Qb3#
- 1...Bb6
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 1...Bc7
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 2.Qc5#
- 1...Bd8
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 2.Qc5#
- 1...Bxc2+!
- 1...Bb3
- 1.Ra6?
- 1...Bc3+
- 2.Qxc3#
- 1...Bb3
- 2.Qxb3#
- 1...Bb5
- 2.Qb3#
- 1...Bc6
- 2.Qb3#
- 1...Bd7
- 2.Qb3#
- 1...Be8
- 2.Qb3#
- 1...Be1
- 2.Rxa4#
- 2.Qb3#
- 2.Qxa4#
- 1...Bd2
- 2.Rxa4#
- 2.Qb3#
- 2.Qxa4#
- 1...Bb4
- 2.Qa2#
- 2.Qb3#
- 1...Bb6
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 1...Bc7
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 2.Qc5#
- 1...Bd8
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 2.Qc5#
- 1...Bxc2!
- 1...Bc3+
- 1.Ra7?
- 1...Bc3+
- 2.Qxc3#
- 1...Bb3
- 2.Qxb3#
- 1...Bb5
- 2.Qb3#
- 1...Bc6
- 2.Qb3#
- 1...Bd7
- 2.Qb3#
- 1...Be8
- 2.Qb3#
- 1...Be1
- 2.Rxa4#
- 2.Qb3#
- 2.Qxa4#
- 1...Bd2
- 2.Rxa4#
- 2.Qb3#
- 2.Qxa4#
- 1...Bb4
- 2.Qa2#
- 2.Qb3#
- 1...Bb6
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 1...Bc7
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 2.Qc5#
- 1...Bd8
- 2.Rxa4#
- 2.Qb3#
- 2.Qc3#
- 2.Qxa4#
- 2.Qc5#
- 1...Bxc2!
- 1...Bc3+
- 1.Qd3+?
- 1...Bb3
- 2.Qxb3#
- 1...Bc3+
- 2.Qxc3#
- 1...Kb4!
- 1...Bb3
- 1.Qc3+?
- 1...Bb3
- 2.Rxa5#
- 2.Qxb3#
- 1...Bxc3+!
- 1...Bb3
- 1.Kb1?
- Keys
- 1.c3!
- threat
- 2.Qa2#
- 1...Bxc3+
- 2.Qxc3#
- 1...Bb3
- 2.Qb4#
- threat
- 1.c3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 4
- Sets
- B(b);N_GUARD,P_SPINB(c)::QAR1(C),XB(b)
- B(b);N_GUARD,P_SPINB(c)::QAR1(C)
- B(c);CHECK,N_GUARD,P_SPINB(b)::QAR2(C),XB(c)
- Tries
- Try
- K(A);P-FLIGHT
- Vars
- B(b);N_GUARD,P_SPINB(c)::QAR1(C),XB(b)
- B(b);N_GUARD,P_SPINB(c)::QAR1(C)
- Refutation
- B(b);CHECK,P_SPINB(c),XP(B)
- Try
- R(D);
- Vars
- B(c);CHECK,N_GUARD,P_SPINB(b)::QAR2(C),XB(c)
- B(b);N_GUARD,P_SPINB(c)::QAR1(C),XB(b)
- B(b);N_GUARD,P_SPINB(c)::QAR1(C)
- Refutation
- B(b);P_SPINB(c),XP(B)
- Try
- R(D);
- Vars
- B(c);CHECK,N_GUARD,P_SPINB(b)::QAR2(C),XB(c)
- B(b);N_GUARD,P_SPINB(c)::QAR1(C),XB(b)
- B(b);N_GUARD,P_SPINB(c)::QAR1(C)
- Refutation
- B(b);P_SPINB(c),XP(B)
- Try
- Q(C);CHECK
- Vars
- B(b);N_GUARD,P_SPINB(b)::QAR1(C),XB(b)
- B(c);CHECK,N_GUARD,P_SPINB(c),S_CUTB(b)::QAR2(C),XB(c)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(C);CHECK
- Refutation
- B(c);CHECK,P_SPINB(b),XQ(C)
- Try
- Actual
- P(B);
- Threat
- QAR1(C)
- Vars
- B(c);CHECK,OGATE,P_SPINB(b),XP(B)::QAR2(C),XB(c)
- B(b);P_SPINB(c)::QAB1(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).