MESON Chess Problem Database
Problem Display
PID: 62985 (4N3/4P3/2p1PpK1/2pk1P2/5p2/2Q2N2/1nP5/8 w - - 0 1)
van Eelde, Antonie Clarus Johannes
Tijdschrift vd NSB, 1896
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Sxf6#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...c4
- 2.Qd4#
- 1...Ke4
- Tries
- 1.Kh5?
- 1...c4
- 2.Qd4#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Ke4!
- 1...c4
- 1.Kxf6?
- 1...c4
- 2.Qd4#
- 2.Qe5#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Ke4!
- 1...c4
- 1.Kh6?
- 1...c4
- 2.Qd4#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Ke4!
- 1...c4
- 1.Kf7?
- 1...c4
- 2.Qd4#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Ke4!
- 1...c4
- 1.Kg7?
- 1...c4
- 2.Qd4#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Ke4!
- 1...c4
- 1.Kh7?
- 1...c4
- 2.Qd4#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Ke4!
- 1...c4
- 1.Sd6?
- 1...c4
- 2.Qd4#
- 1...Sd1
- 2.Qd2#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd2#
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...Kxd6!
- 1...c4
- 1.Sc7+?
- 1...Ke4
- 2.Sd2#
- 1...Kd6!
- 1...Ke4
- 1.Qxb2?
- 1...Kc4
- 2.Qb3#
- 1...c4
- 2.Qd4#
- 1...Ke4!
- 1...Kc4
- 1.Qd2+?
- 1...Kc4
- 2.Sd6#
- 1...Sd3
- 2.Qxd3#
- 1...Ke4!
- 1...Kc4
- 1.Qb3+?
- 1...Ke4
- 2.Sd6#
- 2.Sxf6#
- 1...Sc4
- 2.Qd3#
- 1...c4!
- 1...Ke4
- 1.Qe3?
- 1...Kc4
- 2.Qb3#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...c4
- 2.Qd4#
- 1...fxe3!
- 1...Kc4
- 1.Qxc5+?
- 1...Ke4
- 2.Sd2#
- 1...Kxc5!
- 1...Ke4
- 1.Kh5?
- Keys
- 1.Qa3!
- 1...Kc4
- 2.Qb3#
- 1...Ke4
- 2.Sxf6#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sa4
- 2.Qd3#
- 1...Sc4
- 2.Qd3#
- 1...c4
- 2.Sxf6#
- 1...Kc4
- 1.Qa3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(d);S_FLIGHT::S(H),XP(f)
- S(a);N_GUARD::QAR2(B)
- S(a);N_GUARD::QAR2(B),XS(a)
- P(c);N_GUARD::QAR1(B)
- Tries
- Try
- K(F);S_FLIGHT
- Vars
- P(c);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR2(B)
- S(a);N_GUARD::QAR2(B),XS(a)
- Refutation
- K(d);S_FLIGHT
- Try
- K(F);P-FLIGHT,XP(f)
- Vars
- S(a);N_GUARD::QAR2(B)
- S(a);N_GUARD::QAR2(B),XS(a)
- Refutation
- K(d);S_FLIGHT
- Try
- K(F);P-FLIGHT
- Vars
- P(c);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR2(B)
- S(a);N_GUARD::QAR2(B),XS(a)
- Refutation
- K(d);S_FLIGHT
- Try
- K(F);S_FLIGHT
- Vars
- P(c);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR2(B)
- S(a);N_GUARD::QAR2(B),XS(a)
- Refutation
- K(d);S_FLIGHT
- Try
- K(F);P-FLIGHT
- Vars
- P(c);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR2(B)
- S(a);N_GUARD::QAR2(B),XS(a)
- Refutation
- K(d);S_FLIGHT
- Try
- K(F);S_FLIGHT
- Vars
- P(c);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR2(B)
- S(a);N_GUARD::QAR2(B),XS(a)
- Refutation
- K(d);S_FLIGHT
- Try
- S(H);
- Vars
- P(c);N_GUARD::QAR1(B)
- S(a);N_GUARD::QAR2(B),XS(a)
- S(a);N_GUARD::QAR2(B)
- Refutation
- K(d);P-FLIGHT,XS(H)
- Try
- S(H);CHECK
- Vars
- K(d);S_FLIGHT::S(C)
- Refutation
- K(d);P-FLIGHT
- Try
- Q(B);XS(a)
- Vars
- K(d);S_FLIGHT::QAB1(B)
- P(c);N_GUARD::QAR1(B)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(B);CHECK
- Vars
- K(d);S_FLIGHT::S(H)
- S(a);N_GUARD,P_SPINS(a)::QAR2(B),XS(a)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(B);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a)::QAR2(B)
- Refutation
- P(c);P_SPINP(c)
- Try
- Q(B);
- Vars
- K(d);S_FLIGHT::QAB1(B)
- S(a);N_GUARD::QAR2(B)
- S(a);N_GUARD::QAR2(B),XS(a)
- P(c);N_GUARD::QAR1(B)
- Refutation
- P(b);XQ(B)
- Try
- Q(B);CHECK,XP(c)
- Vars
- K(d);S_FLIGHT::S(C)
- Refutation
- K(d);P-FLIGHT,XQ(B)
- Try
- Actual
- Q(B);
- Vars
- K(d);S_FLIGHT::QAB1(B)
- K(d);S_FLIGHT::S(H),XP(f)
- S(a);N_GUARD::QAR2(B)
- S(a);N_GUARD::QAR2(B),XS(a)
- P(c);SBLOCK::S(H),XP(f)
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).