MESON Chess Problem Database
Problem Display
PID: 227951 (8/8/5n2/2p1R1B1/4b1RN/2pk4/P1N4Q/K7 w - - 0 1)
Groza, Stefan
Schweizerische Schachzeitung, 1985
#2
8 + 5
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Qe2#
- 1...Bh1
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Bg2
- 2.Se1#
- 1...Bf3
- 2.Se1#
- 2.Re3#
- 1...Bd5
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Bf5
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Bc6
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Bg6
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Bb7
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Bh7
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Ba8
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Kc4
- Tries
- 1.Rg3+?
- 1...Bf3
- 2.Qe2#
- 1...Kc4!
- 1...Bf3
- 1.Rexe4?
- threat
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Sxg4
- 2.Qe2#
- 1...Sd5
- 2.Se1#
- 2.Qe2#
- 1...Sxe4!
- threat
- 1.Qd2+?
- 1...Kc4
- 2.Qe2#
- 1...cxd2!
- 1...Kc4
- 1.Qg2?
- 1...Kc4
- 2.Qf1#
- 2.Qe2#
- 1...Bxg2
- 2.Se1#
- 1...Sxg4
- 2.Qxe4#
- 1...Sd5
- 2.Qxe4#
- 1...Bf3
- 2.Se1#
- 2.Re3#
- 1...Bd5
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Bf5
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Bc6
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Bg6
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Bb7
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Bh7
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Ba8
- 2.Se1#
- 2.Re3#
- 2.Qe2#
- 1...Sh5
- 2.Qxe4#
- 1...Sd7
- 2.Qxe4#
- 1...Sh7
- 2.Qxe4#
- 1...Se8
- 2.Qxe4#
- 1...Sg8
- 2.Qxe4#
- 1...c4!
- 1...Kc4
- 1.Qh3+?
- 1...Ke2
- 2.Qf3#
- 1...Kc4
- 2.Qf1#
- 1...Bf3
- 2.Se1#
- 1...Kxc2!
- 1...Ke2
- 1.Rg3+?
- Keys
- 1.Qh1!
- 1...Kxc2
- 2.Qb1#
- 1...Ke2
- 2.Qf3#
- 1...Kc4
- 2.Qf1#
- 1...Bxh1
- 2.Se1#
- 1...Sxg4
- 2.Qxe4#
- 1...Sd5
- 2.Qxe4#
- 1...Bg2
- 2.Se1#
- 2.Qd1#
- 1...Bf3
- 2.Se1#
- 1...Bd5
- 2.Se1#
- 2.Qd1#
- 1...Bf5
- 2.Se1#
- 2.Qd1#
- 1...Bc6
- 2.Se1#
- 2.Qd1#
- 1...Bg6
- 2.Se1#
- 2.Qd1#
- 1...Bb7
- 2.Se1#
- 2.Qd1#
- 1...Bh7
- 2.Se1#
- 2.Qd1#
- 1...Ba8
- 2.Se1#
- 2.Qd1#
- 1...Sh5
- 2.Qxe4#
- 1...Sd7
- 2.Qxe4#
- 1...Sh7
- 2.Qxe4#
- 1...Se8
- 2.Qxe4#
- 1...Sg8
- 2.Qxe4#
- 1...c4
- 2.Qd1#
- 1...Kxc2
- 1.Qh1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 12
- REMOVED MATES = 1
- Sets
- K(b);P_SPINB(c),S_FLIGHT::QAB(D)
- B(c);::S(C)
- Tries
- Try
- R(E);CHECK
- Vars
- B(c);P_SPINB(c)::QAB1(D)
- Refutation
- K(b);S_FLIGHT
- Try
- R(G);XB(c)
- Threat
- DUALS(3)
- Vars
- S(e);XR(E)::QAB1(D)
- Refutation
- S(e);XR(G)
- Try
- Q(D);CHECK
- Vars
- K(b);P_SPINB(c),S_FLIGHT::QAB(D)
- Refutation
- P(a);XQ(D)
- Try
- Q(D);
- Vars
- B(c);XQ(D)::S(C)
- S(e);N_GUARD,XR(E)::QAB1(D),XB(c)
- S(e);N_GUARD::QAB1(D),XB(c)
- Refutation
- P(d);
- Try
- Q(D);CHECK
- Vars
- K(b);P_SPINB(c),S_FLIGHT::QAB1(D)
- K(b);P_SPINB(c),S_FLIGHT::QAB(D)
- B(c);P_SPINB(c)::S(C)
- Refutation
- K(b);S_FLIGHT,XS(C)
- Try
- Actual
- Q(D);
- Vars
- K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(D)
- K(b);P_SPINB(c),S_FLIGHT::QAB1(D)
- K(b);P_SPINB(c),S_FLIGHT::QAB(D)
- B(c);XQ(D)::S(C)
- S(e);N_GUARD,XR(E)::QAB1(D),XB(c)
- S(e);N_GUARD::QAB1(D),XB(c)
- B(c);::S(C)
- P(d);SBLOCK::QAR2(D)
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).