MESON Chess Problem Database
Problem Display
PID: 265867 (K2n4/2p2N2/6Q1/3k1B1p/1P4bR/N3P3/3n4/8 w - - 0 1)
Lewis, Robert Tony
The Problemist, 1996
#2
8 + 6
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Bf3
- 2.Rd4#
- 1...Bh3
- 2.Rd4#
- 1...Bxf5
- 2.Rd4#
- 1...Sb1
- 2.Be4#
- 1...Sf1
- 2.Be4#
- 1...Sb3
- 2.Be4#
- 1...Sf3
- 2.Be4#
- 1...Sc4
- 2.Be4#
- 1...Se4
- 2.Bxe4#
- 1...Sc6
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sb7
- 2.Qe6#
- 1...Sxf7
- 2.Qe6#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...Bd1
- Tries
- 1.Ka7?
- 1...Bxf5
- 2.Rd4#
- 1...Sxf7
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Bd1
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Bf3
- 2.Rd4#
- 1...Bh3
- 2.Rd4#
- 1...Sb1
- 2.Be4#
- 1...Sf1
- 2.Be4#
- 1...Sb3
- 2.Be4#
- 1...Sf3
- 2.Be4#
- 1...Sc4
- 2.Be4#
- 1...Se4
- 2.Bxe4#
- 1...Sb7
- 2.Qe6#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...Sc6+!
- 1...Bxf5
- 1.Kb8?
- 1...Bxf5
- 2.Rd4#
- 1...Sxf7
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Bd1
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Bf3
- 2.Rd4#
- 1...Bh3
- 2.Rd4#
- 1...Sb1
- 2.Be4#
- 1...Sf1
- 2.Be4#
- 1...Sb3
- 2.Be4#
- 1...Sf3
- 2.Be4#
- 1...Sc4
- 2.Be4#
- 1...Se4
- 2.Bxe4#
- 1...Sb7
- 2.Qe6#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...Sc6+!
- 1...Bxf5
- 1.Sxd8?
- threat
- 2.Qe6#
- 1...Ke5
- 2.Qe6#
- 1...Bxf5!
- threat
- 1.Bxg4?
- threat
- 2.Rxh5#
- 1...Sxf7
- 2.Qe6#
- 1...hxg4
- 2.Rh5#
- 1...Se6
- 2.Qxe6#
- 1...Sf3
- 2.Bxf3#
- 1...Sc4
- 2.Bf3#
- 1...Sc6
- 2.Be6#
- 2.Qe6#
- 1...Se4!
- threat
- 1.Rxg4?
- threat
- 2.Rd4#
- 1...Sxf7
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sb3
- 2.Be4#
- 1...Sf3
- 2.Be4#
- 1...Se4
- 2.Bxe4#
- 1...Sc6
- 2.Be6#
- 2.Qe6#
- 1...c5
- 2.Qd6#
- 1...hxg4!
- threat
- 1.Qf6?
- 1...Bxf5
- 2.Rd4#
- 1...Sxf7
- 2.Qe6#
- 1...Se6
- 2.Qxe6#
- 1...Sb1
- 2.e4#
- 1...Bd1
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Bf3
- 2.Rd4#
- 1...Bh3
- 2.Rd4#
- 1...Sf1
- 2.e4#
- 1...Sb3
- 2.e4#
- 1...Sf3
- 2.e4#
- 1...Sc4
- 2.e4#
- 1...Sc6
- 2.Qe6#
- 1...Sb7
- 2.Qe6#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd4#
- 2.Qe5#
- 2.Qxd8#
- 2.Qd6#
- 1...Se4!
- 1...Bxf5
- 1.Ka7?
- Keys
- 1.Qa6!
- 1...Bxf5
- 2.Rd4#
- 1...Sxf7
- 2.Qe6#
- 1...Sb1
- 2.Qc4#
- 1...Bd1
- 2.Rd4#
- 1...Be2
- 2.Rd4#
- 1...Bf3
- 2.Rd4#
- 1...Bh3
- 2.Rd4#
- 1...Sf1
- 2.Qc4#
- 1...Sb3
- 2.Qc4#
- 1...Sf3
- 2.Qc4#
- 1...Sc4
- 2.Qxc4#
- 1...Se4
- 2.Qc4#
- 1...Sc6
- 2.Qb5#
- 1...Se6
- 2.Qxe6#
- 1...Sb7
- 2.Qe6#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd3#
- 1...Bxf5
- 1.Qa6!
This is after
After G. Heathcote.
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- B(b);OGATE::R1(D)
- B(b);OGATE,XB(E)::R1(D)
- S(a);N_GUARD::B(E)
- S(a);N_GUARD::B(E),XS(a)
- S(f);N_GUARD::QAB1(F)
- S(f);N_GUARD::QAB1(F),XS(f)
- S(f);N_GUARD,XS(G)::QAB1(F)
- P(e);N_GUARD::QAR1(F)
- Tries
- Try
- K(H);P-FLIGHT
- Vars
- B(b);OGATE,XB(E)::R1(D)
- S(f);N_GUARD,XS(G)::QAB1(F)
- S(f);N_GUARD::QAB1(F),XS(f)
- B(b);OGATE::R1(D)
- S(a);N_GUARD::B(E)
- S(a);N_GUARD::B(E),XS(a)
- S(f);N_GUARD::QAB1(F)
- P(e);N_GUARD::QAR1(F)
- Refutation
- S(f);CHECK
- Try
- K(H);P-FLIGHT
- Vars
- B(b);OGATE,XB(E)::R1(D)
- S(f);N_GUARD,XS(G)::QAB1(F)
- S(f);N_GUARD::QAB1(F),XS(f)
- B(b);OGATE::R1(D)
- S(a);N_GUARD::B(E)
- S(a);N_GUARD::B(E),XS(a)
- S(f);N_GUARD::QAB1(F)
- P(e);N_GUARD::QAR1(F)
- Refutation
- S(f);CHECK
- Try
- S(G);XS(f)
- Threat
- QAB1(F)
- Vars
- K(c);P-FLIGHT::QAR1(F)
- Refutation
- B(b);XB(E)
- Try
- B(E);XB(b)
- Threat
- R(D),XP(d)
- Vars
- S(f);N_GUARD,XS(G)::QAB1(F)
- P(d);XB(E)::R(D)
- S(f);N_GUARD::QAB1(F),XS(f)
- S(a);N_GUARD::B(E),XS(a)
- S(a);N_GUARD::B(E)
- Refutation
- S(a);
- Try
- R(D);XB(b)
- Threat
- R1(D)
- Vars
- S(f);N_GUARD,XS(G)::QAB1(F)
- S(f);N_GUARD::QAB1(F),XS(f)
- S(a);N_GUARD::B(E)
- S(a);N_GUARD::B(E),XS(a)
- P(e);N_GUARD::QAR1(F)
- Refutation
- P(d);XR(D)
- Try
- Q(F);
- Vars
- B(b);OGATE,XB(E)::R1(D)
- S(f);N_GUARD,XS(G)::QAB1(F)
- S(f);N_GUARD::QAB1(F),XS(f)
- S(a);N_GUARD::P(B)
- B(b);OGATE::R1(D)
- S(f);N_GUARD::QAB1(F)
- P(e);N_GUARD::QAR1(F)
- Refutation
- S(a);
- Try
- Actual
- Q(F);
- Vars
- B(b);OGATE,XB(E)::R1(D)
- S(f);N_GUARD,XS(G)::QAB1(F)
- S(a);N_GUARD::QAB1(F)
- B(b);OGATE::R1(D)
- S(a);N_GUARD::QAB1(F),XS(a)
- S(f);S_CUTP(e)::QAR2(F)
- S(f);N_GUARD::QAB1(F),XS(f)
- S(f);N_GUARD::QAB1(F)
- P(e);N_GUARD::QAR1(F)
- P(e);SBLOCK::QAR2(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).