MESON Chess Problem Database
Problem Display
PID: 180056 (4N3/3N4/p7/p2k3P/K2b3R/1p4PB/1PnQ4/8 w - - 0 1)
Servais, Albert
Bulletin Ouvrier des Echecs, 1952
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Be6#
- 1...Kc6
- 2.Qg2#
- 1...Kc4
- Tries
- 1.Bg2+?
- 1...Kc4
- 2.Sd6#
- 2.Qc3#
- 2.Qe2#
- 1...Ke6!
- 1...Kc4
- 1.Be6+?
- 1...Kc6
- 2.Qg2#
- 1...Kxe6!
- 1...Kc6
- 1.Rxd4+?
- 1...Kc6
- 2.Bg2#
- 2.Qg2#
- 1...Sxd4!
- 1...Kc6
- 1.Qc3?
- 1...Bc5
- 2.Qf3#
- 2.Qxc5#
- 1...Sa1
- 2.Rxd4#
- 1...Bg1
- 2.Sdf6#
- 2.Qf3#
- 2.Qc4#
- 1...Bf2
- 2.Sdf6#
- 2.Qf3#
- 2.Qc4#
- 1...Be3
- 2.Sdf6#
- 2.Qc4#
- 1...Be5
- 2.Sb6#
- 2.Qf3#
- 2.Qc4#
- 2.Qc5#
- 1...Bb6
- 2.Sxb6#
- 2.Sdf6#
- 2.Qf3#
- 2.Qc4#
- 1...Bf6
- 2.Sb6#
- 2.Sdxf6#
- 2.Qf3#
- 2.Qc4#
- 2.Qc5#
- 1...Ba7
- 2.Sdf6#
- 2.Qf3#
- 2.Qc4#
- 1...Bg7
- 2.Sb6#
- 2.Qf3#
- 2.Qc4#
- 2.Qc5#
- 1...Bh8
- 2.Sb6#
- 2.Qf3#
- 2.Qc4#
- 2.Qc5#
- 1...Se1
- 2.Rxd4#
- 1...Sa3
- 2.Rxd4#
- 1...Se3
- 2.Rxd4#
- 1...Sb4
- 2.Rxd4#
- 1...Bxc3!
- 1...Bc5
- 1.Qxa5+?
- 1...Kc4
- 2.Se5#
- 2.Bf1#
- 1...Bc5
- 2.Qxc5#
- 1...Kc6!
- 1...Kc4
- 1.Qxc2?
- 1...Bxb2
- 2.Qe4#
- 2.Qg2#
- 2.Qc4#
- 2.Qc5#
- 1...Bc3
- 2.Qe4#
- 2.Qg2#
- 1...Bc5
- 2.Qe4#
- 2.Qg2#
- 2.Qxc5#
- 1...Bg1
- 2.Qe4#
- 2.Qg2#
- 2.Qc4#
- 1...Bf2
- 2.Qe4#
- 2.Qc4#
- 1...Be3
- 2.Qe4#
- 2.Qg2#
- 2.Qc4#
- 1...Be5
- 2.Sb6#
- 2.Qe4#
- 2.Qg2#
- 2.Qc4#
- 2.Qc5#
- 1...Bb6
- 2.Qe4#
- 2.Qg2#
- 2.Qc4#
- 1...Bf6
- 2.Qe4#
- 2.Qg2#
- 2.Qc4#
- 2.Qc5#
- 1...Ba7
- 2.Qe4#
- 2.Qg2#
- 2.Qc4#
- 1...Bg7
- 2.Qe4#
- 2.Qg2#
- 2.Qc4#
- 2.Qc5#
- 1...Bh8
- 2.Qe4#
- 2.Qg2#
- 2.Qc4#
- 2.Qc5#
- 1...bxc2!
- 1...Bxb2
- 1.Qe2?
- threat
- 2.Bg2#
- 2.Qe6#
- 1...Kc6
- 2.Qf3#
- 2.Qg2#
- 2.Qe4#
- 1...Be3
- 2.Qf3#
- 2.Qc4#
- 2.Qg2#
- 1...Be5
- 2.Qf3#
- 2.Qc4#
- 2.Qg2#
- 2.Qe4#
- 1...Se1
- 2.Qe6#
- 1...Se3!
- threat
- 1.Qxd4+?
- 1...Kc6
- 2.Bg2#
- 2.Qe4#
- 1...Sxd4!
- 1...Kc6
- 1.Bg2+?
- Keys
- 1.Se5!
- 1...Kc5
- 2.Qxa5#
- 1...Kxe5
- 2.Qg5#
- 1...Sa1
- 2.Qxd4#
- 1...Se1
- 2.Qxd4#
- 1...Sa3
- 2.Qxd4#
- 1...Se3
- 2.Qxd4#
- 1...Sb4
- 2.Qxd4#
- 1...Kc5
- 1.Se5!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 2
- Sets
- K(e);S_FLIGHT::B(D)
- K(e);N_SPINB(c),S_FLIGHT::QAB(B)
- Tries
- Try
- B(D);CHECK
- Refutation
- K(e);N_SPINB(c),S_FLIGHT
- Try
- B(D);CHECK
- Vars
- K(e);N_SPINB(c),S_FLIGHT::QAB(B)
- Refutation
- K(e);N_SPINB(c),S_FLIGHT,XB(D)
- Try
- R(F);CHECK,XB(c)
- Refutation
- S(a);P_SPINS(a),XR(F)
- Try
- Q(B);N_PINB(c)
- Vars
- S(a);N_GUARD::R1(F),XB(c)
- Refutation
- B(c);XQ(B)
- Try
- Q(B);CHECK,N_PINB(c),XP(d)
- Vars
- B(c);N_GUARD,P_SPINB(c)::QAR1(B),XB(c)
- Refutation
- K(e);S_FLIGHT
- Try
- Q(B);N_PINB(c),XS(a)
- Refutation
- P(b);XQ(B)
- Try
- Q(B);N_PINB(c)
- Threat
- DUALS(2)
- Vars
- S(a);::QAB1(B)
- Refutation
- S(a);
- Try
- Q(B);CHECK,XB(c)
- Refutation
- S(a);XQ(B)
- Try
- Actual
- S(H);
- Vars
- K(e);N_SPINB(c),P-FLIGHT::QAR2(B),XP(d)
- K(e);N_SPINB(c),OGATEB,P-FLIGHT,XS(H)::QAR2(B)
- S(a);N_GUARD::QAR1(B),XB(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).