MESON Chess Problem Database
Problem Display
PID: 268738 (8/3p4/N2P4/2pRP3/P1k2n2/1n3Q2/1B1p1P2/3K4 w - - 0 1)
Hermanson, Halvar
Die Schwalbe, 1975
#2
9 + 6
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Rxc5#
- 1...Sc1
- 2.Rxc5#
- 1...Sd4
- 2.Rxc5#
- 1...Sa5
- 2.Rxc5#
- 1...Se2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sh3
- 2.Qd3#
- 1...Sxd5
- 2.Qe2#
- 1...Sh5
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Sa1
- Tries
- 1.Ba1?
- 1...Sxd5
- 2.Qe2#
- 1...Sc1
- 2.Rxc5#
- 1...Sd4
- 2.Rxc5#
- 1...Sa5
- 2.Rxc5#
- 1...Se2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sh3
- 2.Qd3#
- 1...Sh5
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Sxa1!
- 1...Sxd5
- 1.Qe3?
- 1...Sxd5
- 2.Qe2#
- 1...Sd4
- 2.Rxc5#
- 1...Sa1
- 2.Rxc5#
- 1...Sc1
- 2.Rxc5#
- 1...Sa5
- 2.Rxc5#
- 1...Se2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sh3
- 2.Qd3#
- 1...Sh5
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Kxd5!
- 1...Sxd5
- 1.a5?
- 1...Sxa5
- 2.Rxc5#
- 1...Sxd5
- 2.Qe2#
- 1...Sd4
- 2.Rxc5#
- 1...Sa1
- 2.Rxc5#
- 1...Sc1
- 2.Rxc5#
- 1...Se2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sh3
- 2.Qd3#
- 1...Sh5
- 2.Qd3#
- 1...Se6
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...Kb5!
- 1...Sxa5
- 1.e6?
- 1...Sxd5
- 2.Qe2#
- 1...Sxe6
- 2.Qd3#
- 1...Sd4
- 2.Rxc5#
- 1...Sa1
- 2.Rxc5#
- 1...Sc1
- 2.Rxc5#
- 1...Sa5
- 2.Rxc5#
- 1...Se2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sh3
- 2.Qd3#
- 1...Sh5
- 2.Qd3#
- 1...Sg6
- 2.Qd3#
- 1...dxe6!
- 1...Sxd5
- 1.Ba1?
- Keys
- 1.Rd3!
- 1...Sxd3
- 2.Qf7#
- 1...Sd4
- 2.Rc3#
- 1...Sa1
- 2.Qe4#
- 1...Sc1
- 2.Qe4#
- 1...Sa5
- 2.Qe4#
- 1...Se2
- 2.Qd5#
- 1...Sg2
- 2.Qd5#
- 1...Sh3
- 2.Qd5#
- 1...Sd5
- 2.Qxd5#
- 1...Sh5
- 2.Qd5#
- 1...Se6
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sxd3
- 1.Rd3!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 12
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(b);N_GUARD::R1(F),XP(e)
- S(d);N_GUARD::QAB1(D)
- S(d);N_GUARD::QAB1(D),XS(d)
- S(d);N_GUARD,SBLOCK,XR(F)::QAB(D)
- Tries
- Try
- B(B);
- Vars
- S(d);N_GUARD,SBLOCK,XR(F)::QAB(D)
- S(b);N_GUARD::R1(F),XP(e)
- S(d);N_GUARD::QAB1(D)
- S(d);N_GUARD::QAB1(D),XS(d)
- Refutation
- S(b);XB(B)
- Try
- Q(D);
- Vars
- S(d);N_GUARD,SBLOCK,XR(F)::QAB(D)
- S(b);N_GUARD::R1(F),XP(e)
- S(d);N_GUARD::QAB1(D)
- S(d);N_GUARD::QAB1(D),XS(d)
- Refutation
- K(c);S_FLIGHT,XR(F)
- Try
- P(E);
- Vars
- S(b);N_GUARD,XP(E)::R1(F),XP(e)
- S(d);N_GUARD,SBLOCK,XR(F)::QAB(D)
- S(b);N_GUARD::R1(F),XP(e)
- S(d);N_GUARD::QAB1(D)
- S(d);N_GUARD::QAB1(D),XS(d)
- Refutation
- K(c);P_SPINP(e),S_FLIGHT
- Try
- P(G);
- Vars
- S(d);N_GUARD,SBLOCK,XR(F)::QAB(D)
- S(d);N_GUARD,XP(G)::QAB1(D)
- S(b);N_GUARD::R1(F),XP(e)
- S(d);N_GUARD::QAB1(D)
- S(d);N_GUARD::QAB1(D),XS(d)
- Refutation
- P(f);XP(G)
- Try
- Actual
- R(F);
- Vars
- S(d);OGATE,SBLOCK,XR(F)::QAB(D)
- S(b);SBLOCK::R1(F)
- S(b);N_GUARD::QAR2(D)
- S(d);N_GUARD::QAB1(D)
- S(d);N_GUARD::QAB1(D),XS(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).