MESON Chess Problem Database
Problem Display
PID: 185841 (1BB2K2/5Rp1/2p4p/3k4/1P6/3n1q2/2NNn1Q1/4R2b w - - 0 1)
Henry, S
Chess, 1957
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Sec1
- 2.Be6#
- 1...Sg1
- 2.Be6#
- 1...Sc3
- 2.Be6#
- 1...Sg3
- 2.Be6#
- 1...Sd4
- 2.Se3#
- 1...Sef4
- 2.Rd7#
- 1...Sdc1
- 2.Rf5#
- 1...Sxe1
- 2.Rf5#
- 1...Sb2
- 2.Rf5#
- 1...Sf2
- 2.Rf5#
- 1...Sxb4
- 2.Rf5#
- 1...Sdf4
- 2.Rf5#
- 1...Sc5
- 2.Rf5#
- 1...Sec1
- Tries
- 1.Ke7?
- threat
- 2.Be6#
- 1...Sxb4
- 2.Rf5#
- 1...c5
- 2.Bb7#
- 1...Sd4
- 2.Se3#
- 1...Sdf4
- 2.Rf5#
- 1...Sc5
- 2.Rf5#
- 1...Sef4!
- threat
- 1.Rxe2?
- threat
- 2.Be6#
- 1...Sxb4
- 2.Re5#
- 2.Rf5#
- 1...c5
- 2.Bb7#
- 1...Sf4
- 2.Re5#
- 2.Rf5#
- 2.Rd7#
- 1...Sc5
- 2.Re5#
- 2.Rf5#
- 1...Se5
- 2.Rxe5#
- 1...Qe4!
- threat
- 1.Rxf3?
- threat
- 2.Rxd3#
- 2.Rf5#
- 1...Sxe1
- 2.Rd3#
- 2.Rf5#
- 1...Sxb4
- 2.Rf5#
- 1...Sd4
- 2.Se3#
- 2.Rf5#
- 1...Sef4
- 2.Rxd3#
- 1...Sdc1
- 2.Rd3#
- 2.Rf5#
- 1...Sb2
- 2.Rd3#
- 2.Rf5#
- 1...Sf2
- 2.Rd3#
- 2.Rf5#
- 1...Sdf4
- 2.Rd3#
- 1...Sc5
- 2.Rd3#
- 2.Rf5#
- 1...Se5
- 2.Rd3#
- 1...Bxg2!
- threat
- 1.Qg6?
- threat
- 2.Be6#
- 2.Qd6#
- 2.Qe6#
- 1...Qxf7+
- 2.Qxf7#
- 1...Sxb4
- 2.Qd6#
- 1...Qe4
- 2.Rd7#
- 2.Qd6#
- 1...Qg4
- 2.Qd6#
- 1...Qe3
- 2.Rd7#
- 2.Qd6#
- 1...Qg3
- 2.Be6#
- 2.Qe6#
- 1...Qh3
- 2.Qd6#
- 1...Qf4
- 2.Be6#
- 2.Qe6#
- 1...Qf5
- 2.Qd6#
- 1...Sd4
- 2.Qd6#
- 1...Sef4
- 2.Rd7#
- 2.Qd6#
- 1...Sdf4
- 2.Rf5#
- 2.Rd7#
- 2.Qf5#
- 2.Qd6#
- 1...Sc5
- 2.Qd6#
- 1...c5
- 2.Bb7#
- 2.Qd6#
- 2.Qe6#
- 1...Qf6!
- threat
- 1.Ke7?
- Keys
- 1.Rf6!
- threat
- 2.Be6#
- 1...Sxb4
- 2.Rf5#
- 1...gxf6
- 2.Qg8#
- 1...Sd4
- 2.Se3#
- 1...Sef4
- 2.Rd6#
- 1...Sdf4
- 2.Rf5#
- 1...Sc5
- 2.Rf5#
- 1...c5
- 2.Bb7#
- threat
- 1.Rf6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- S(b);::B(H)
- S(b);SBLOCK::S(B)
- S(b);N_PINR(F)::R(F)
- S(c);N_GUARD::R(F)
- S(c);N_GUARD,XR(A)::R(F)
- S(c);N_GUARD,XP(E)::R(F)
- S(c);N_GUARD,N_PINR(F)::R(F)
- Tries
- Try
- K(I);N_SPINR(F),S_FLIGHT
- Threat
- B(H)
- Vars
- S(c);N_GUARD,XP(E)::R(F)
- P(f);OGATEB::B(H)
- S(b);SBLOCK::S(B)
- S(c);N_GUARD::R(F)
- Refutation
- S(b);
- Try
- R(A);XS(b)
- Threat
- B(H)
- Vars
- P(f);OGATEB::B(H)
- S(c);N_GUARD::R1(A),XS(c)
- Refutation
- Q(d);N_PINR(F)
- Try
- R(F);N_SPINR(F),XQ(d)
- Threat
- DUALS(2)
- Vars
- S(c);XP(E)::QAB(D)+R(F),DCHECK
- S(b);::QAB(D)+R(F),DCHECK,XS(c)
- S(c);::QAB(D)+R(F),DCHECK
- Refutation
- B(a);XQ(D)
- Try
- Q(D);N_PINQ(d)
- Threat
- DUALS(3)
- Vars
- Q(d);CHECK,OGATE,XR(F)::QAB(D),XQ(d)
- S(c);XP(E)::QAR1(D)
- Q(d);N_PINR(F)::QAR1(D)
- Q(d);::QAR1(D)
- S(b);::QAR1(D)
- S(c);::QAR1(D)
- Refutation
- Q(d);
- Try
- Actual
- R(F);
- Threat
- B(H)
- Vars
- S(c);N_GUARD,XP(E)::R(F)
- P(h);OGATE,XR(F)::QAB(D)
- S(b);SBLOCK::S(B)
- S(b);N_PINR(F)::R1(F)
- S(c);N_GUARD,N_PINR(F)::R(F)
- S(c);N_GUARD::R(F)
- P(f);OGATEB::B(H)
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).