MESON Chess Problem Database
Problem Display
PID: 76929 (5R1K/2pQ4/1pn1p3/1p2kp2/1p2np2/1N3B2/8/8 w - - 0 1)
Veders, Visvaldis M
Source?, 1948
#2
5 + 10
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Qxc7#
- 1...Sf2
- 2.Qxc7#
- 1...Sc3
- 2.Qxc7#
- 1...Sg3
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sd6
- 2.Qg7#
- 1...Sf6
- 2.Qxc7#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sd2
- Tries
- 1.Kg7?
- 1...Sd2
- 2.Qxc7#
- 1...Sf2
- 2.Qxc7#
- 1...Sc3
- 2.Qxc7#
- 1...Sg3
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sf6
- 2.Qxc7#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sd6!
- 1...Sd2
- 1.Bh1?
- 1...Sf2
- 2.Qxc7#
- 1...Sd2
- 2.Qxc7#
- 1...Sc3
- 2.Qxc7#
- 1...Sg3
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sd6
- 2.Qg7#
- 1...Sf6
- 2.Qxc7#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...f3!
- 1...Sf2
- 1.Bg2?
- 1...Sf2
- 2.Qxc7#
- 1...Sd2
- 2.Qxc7#
- 1...Sc3
- 2.Qxc7#
- 1...Sg3
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sd6
- 2.Qg7#
- 1...Sf6
- 2.Qxc7#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...f3!
- 1...Sf2
- 1.Rf7?
- 1...Sf2
- 2.Qxc7#
- 1...Sd2
- 2.Qxc7#
- 1...Sc3
- 2.Qxc7#
- 1...Sg3
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sf6
- 2.Qxc7#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sd8
- 2.Qd4#
- 1...Sd6!
- 1...Sf2
- 1.Qxc6?
- 1...Sf2
- 2.Qxc7#
- 1...Sd2
- 2.Qxc7#
- 1...Sc3
- 2.Qxc7#
- 1...Sg3
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sf6
- 2.Qxc7#
- 1...Sd6!
- 1...Sf2
- 1.Qxc7+?
- 1...Sd6
- 2.Qg7#
- 1...Kd5!
- 1...Sd6
- 1.Qd8?
- 1...Sf2
- 2.Qxc7#
- 1...Sd2
- 2.Qxc7#
- 1...Sc3
- 2.Qxc7#
- 1...Sg3
- 2.Qxc7#
- 1...Sc5
- 2.Qxc7#
- 1...Sg5
- 2.Qxc7#
- 1...Sd6
- 2.Qf6#
- 1...Sf6
- 2.Qxc7#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Sxd8!
- 1...Sf2
- 1.Kg7?
- Keys
- 1.Rd8!
- 1...Kf6
- 2.Qg7#
- 1...Sxd8
- 2.Qd4#
- 1...Sf2
- 2.Qg7#
- 1...Sd2
- 2.Qg7#
- 1...Sc3
- 2.Qg7#
- 1...Sg3
- 2.Qg7#
- 1...Sc5
- 2.Qg7#
- 1...Sg5
- 2.Qg7#
- 1...Sd6
- 2.Qg7#
- 1...Sf6
- 2.Qxc7#
- 1...Sd4
- 2.Qxd4#
- 1...Sa5
- 2.Qd4#
- 1...Sa7
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sb8
- 2.Qd4#
- 1...Kf6
- 1.Rd8!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::QAB(C),XP(j)
- S(b);N_GUARD,SBLOCK::QAB(C)
- S(h);N_GUARD::QAB1(C),XS(h)
- S(h);N_GUARD::QAB1(C)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- S(b);N_GUARD::QAB(C),XP(j)
- S(h);N_GUARD::QAB1(C),XS(h)
- S(h);N_GUARD::QAB1(C)
- Refutation
- S(b);
- Try
- B(B);
- Vars
- S(b);N_GUARD::QAB(C),XP(j)
- S(b);N_GUARD,SBLOCK::QAB(C)
- S(h);N_GUARD::QAB1(C),XS(h)
- S(h);N_GUARD::QAB1(C)
- Refutation
- P(c);
- Try
- B(B);
- Vars
- S(b);N_GUARD::QAB(C),XP(j)
- S(b);N_GUARD,SBLOCK::QAB(C)
- S(h);N_GUARD::QAB1(C),XS(h)
- S(h);N_GUARD::QAB1(C)
- Refutation
- P(c);
- Try
- R(D);
- Vars
- S(b);N_GUARD::QAB(C),XP(j)
- S(h);N_GUARD::QAB1(C),XS(h)
- S(h);N_GUARD::QAB1(C)
- Refutation
- S(b);
- Try
- Q(C);XS(h)
- Vars
- S(b);N_GUARD::QAB(C),XP(j)
- Refutation
- S(b);
- Try
- Q(C);CHECK,XP(j)
- Vars
- S(b);N_GUARD,P_SPINS(b),SBLOCK::QAB(C)
- Refutation
- K(e);P-FLIGHT,P_SPINS(b)
- Try
- Q(C);
- Vars
- S(b);N_GUARD::QAB(C),XP(j)
- S(b);N_GUARD,SBLOCK::QAB1(C)
- S(h);N_GUARD::QAB1(C),XS(h)
- S(h);N_GUARD::QAB1(C)
- Refutation
- S(h);XQ(C)
- Try
- Actual
- R(D);
- Vars
- K(e);S_FLIGHT::QAB1(C)
- S(h);N_GUARD,XR(D)::QAB1(C)
- S(b);N_GUARD::QAB(C)
- S(b);N_GUARD,SBLOCK::QAB(C),XP(j)
- S(h);N_GUARD::QAB1(C),XS(h)
- S(h);N_GUARD::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).