MESON Chess Problem Database
Problem Display
PID: 242927 (4q1B1/5n2/N7/3P4/R1Nk1p2/5QPR/1P2p3/4K3 w - - 0 1)
Zajic, Helmut
Schweizerische Schachzeitung, 1991
#2
10 + 5
SOLUTION
- SOUND
- Sets
- 1...Qe5
- 2.Sd2#
- 2.Sa3#
- 2.Sa5#
- 2.Sb6#
- 2.Sd6#
- 1...Qe5
- Tries
- 1.Sd2+?
- 1...Qxa4
- 2.Qe4#
- 1...Ke5!
- 1...Qxa4
- 1.Se3+?
- 1...Kd3
- 2.Sc5#
- 2.Qxe2#
- 1...Ke5
- 2.Qxf4#
- 1...Qxa4!
- 1...Kd3
- 1.Sb6+?
- 1...Ke5
- 2.Qxf4#
- 1...Qxa4!
- 1...Ke5
- 1.Sd6+?
- 1...Qxa4
- 2.Qe4#
- 1...Ke5!
- 1...Qxa4
- 1.Bh7?
- threat
- 2.Qd3#
- 1...Qe4
- 2.Qxe4#
- 1...Se5
- 2.Qe4#
- 1...Qe3!
- threat
- 1.Sd2+?
- Keys
- 1.gxf4!
- threat
- 2.Qd3#
- 1...Qe3
- 2.Se5#
- 1...Qe4
- 2.Sb6#
- 1...Se5
- 2.Qe3#
- threat
- 1.gxf4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(G);CHECK
- Vars
- Q(e);XR(F)::QAR1(C)
- Refutation
- K(b);S_FLIGHT
- Try
- S(G);CHECK
- Vars
- K(b);S_FLIGHT::QAB1(C),XP(c)
- Refutation
- Q(e);XR(F)
- Try
- S(G);CHECK
- Vars
- K(b);S_FLIGHT::QAB1(C),XP(c)
- Refutation
- Q(e);XR(F)
- Try
- S(G);CHECK
- Vars
- Q(e);XR(F)::QAR1(C)
- Refutation
- K(b);S_FLIGHT
- Try
- B(J);
- Threat
- QAR1(C)
- Vars
- Q(e);N_GUARD::QAR1(C),XQ(e)
- S(d);S_CUTQ(e)::QAR1(C)
- Refutation
- Q(e);
- Try
- Actual
- P(D);XP(c)
- Threat
- QAR1(C)
- Vars
- Q(e);N_GUARD::R(F)+S(G)
- S(d);S_CUTQ(e)::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).