MESON Chess Problem Database
Problem Display
PID: 165309 (8/4R3/4NKp1/3PNp1r/r1P2RP1/1p2kpP1/p7/4BBn1 w - - 0 1)
Morse, Christopher Jeremy
The Problemist Supplement, 2017
#2
11 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxc4
- 2.Sxc4#
- 1...fxg4
- 2.Sxg4#
- 1...Rxc4
- Tries
- 1.Sd3?
- threat
- 2.Sd4#
- 2.Sec5#
- 2.Sg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...a1Q+
- 2.Sd4#
- 1...a1B+
- 2.Sd4#
- 1...Rxc4
- 2.Sd4#
- 1...fxg4
- 2.Sg5#
- 1...Se2
- 2.Sec5#
- 1...Ra7
- 2.Sc7#
- 1...Rg5
- 2.Sd4#
- 2.Sec5#
- 2.Sxg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Rh7
- 2.Sg7#
- 1...g5
- 2.Sd4#
- 2.Sec5#
- 2.Sxg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sf8#
- 1...Ra6!
- threat
- 1.Sxg6?
- threat
- 2.Sd4#
- 2.Sc5#
- 2.Sg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sef8#
- 1...a1Q+
- 2.Sd4#
- 1...a1B+
- 2.Sd4#
- 1...Rxc4
- 2.Sd4#
- 1...fxg4
- 2.Sg5#
- 1...Se2
- 2.Sc5#
- 1...Ra7
- 2.Sc7#
- 1...Rg5
- 2.Sd4#
- 2.Sc5#
- 2.Sxg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sef8#
- 1...Rh7
- 2.Sg7#
- 1...Ra6!
- threat
- 1.Sd7?
- threat
- 2.Sd4#
- 2.Sec5#
- 2.Sg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sef8#
- 1...a1Q+
- 2.Sd4#
- 1...a1B+
- 2.Sd4#
- 1...Rxc4
- 2.Sd4#
- 1...fxg4
- 2.Sg5#
- 1...Se2
- 2.Sec5#
- 1...Rg5
- 2.Sd4#
- 2.Sec5#
- 2.Sxg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sef8#
- 1...Rh7
- 2.Sg7#
- 1...g5
- 2.Sd4#
- 2.Sec5#
- 2.Sxg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sd8#
- 2.Sef8#
- 1...Ra6!
- threat
- 1.Sf7?
- threat
- 2.Sd4#
- 2.Sc5#
- 2.Seg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sed8#
- 2.Sf8#
- 1...a1Q+
- 2.Sd4#
- 1...a1B+
- 2.Sd4#
- 1...Rxc4
- 2.Sd4#
- 1...fxg4
- 2.Seg5#
- 1...Se2
- 2.Sc5#
- 1...Ra7
- 2.Sc7#
- 1...Rg5
- 2.Sd4#
- 2.Sc5#
- 2.Sexg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sed8#
- 2.Sf8#
- 1...g5
- 2.Sd4#
- 2.Sc5#
- 2.Sexg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sed8#
- 2.Sf8#
- 1...Ra6!
- threat
- 1.Sd4?
- threat
- 2.Sd3#
- 2.Sexf3#
- 2.Sec6#
- 2.Sxg6#
- 2.Sd7#
- 2.Sf7#
- 1...Ra6+
- 2.Sec6#
- 1...fxg4
- 2.Sxg4#
- 1...Ra7
- 2.Sd7#
- 1...Rh7
- 2.Sf7#
- 1...f2
- 2.Sd3#
- 2.Sef3#
- 2.Sec6#
- 2.Sxg6#
- 2.Sd7#
- 2.Sf7#
- 1...g5
- 2.Sxf5#
- 2.Sd3#
- 2.Sexf3#
- 2.Sec6#
- 2.Sg6#
- 2.Sd7#
- 2.Sf7#
- 1...Se2!
- threat
- 1.Rxf3+?
- 1...Ke4
- 2.Bd3#
- 1...Sxf3!
- 1...Ke4
- 1.Sd3?
- Keys
- 1.Sc6!
- threat
- 2.Sed4#
- 2.Sc5#
- 2.Sg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sed8#
- 2.Sf8#
- 1...a1Q+
- 2.Sed4#
- 1...a1B+
- 2.Sed4#
- 1...Rxc4
- 2.Sed4#
- 1...fxg4
- 2.Sg5#
- 1...Se2
- 2.Sc5#
- 1...Ra7
- 2.Sc7#
- 1...Rg5
- 2.Sed4#
- 2.Sc5#
- 2.Sxg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sed8#
- 2.Sf8#
- 1...Rh7
- 2.Sg7#
- 1...g5
- 2.Sed4#
- 2.Sc5#
- 2.Sxg5#
- 2.Sc7#
- 2.Sg7#
- 2.Sed8#
- 2.Sf8#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- R(f);XP(D)::S(H),XR(f)
- P(g);XP(F)::S(H),XP(g)
- Tries
- Try
- S(H);
- Threat
- DUALS(7)
- Vars
- P(b);CHECK::R(K)+S(I)
- R(f);XP(D)::R(K)+S(I)
- P(g);XP(F)::R(K)+S(I)
- S(a);::R(K)+S(I)
- R(f);::R(K)+S(I)
- R(h);::R(K)+S(I)
- Refutation
- R(f);P_PINS(I)
- Try
- S(H);XP(i)
- Threat
- DUALS(7)
- Vars
- P(b);CHECK::R(K)+S(I)
- R(f);XP(D)::R(K)+S(I)
- P(g);XP(F)::R(K)+S(I)
- S(a);::R(K)+S(I)
- R(f);::R(K)+S(I)
- R(h);::R(K)+S(I)
- Refutation
- R(f);P_PINS(I)
- Try
- S(H);
- Threat
- DUALS(7)
- Vars
- P(b);CHECK::R(K)+S(I)
- R(f);XP(D)::R(K)+S(I)
- P(g);XP(F)::R(K)+S(I)
- S(a);::R(K)+S(I)
- R(h);::R(K)+S(I)
- Refutation
- R(f);P_PINS(I)
- Try
- S(H);
- Threat
- DUALS(7)
- Vars
- P(b);CHECK::R(K)+S(I)
- R(f);XP(D)::R(K)+S(I)
- P(g);XP(F)::R(K)+S(I)
- S(a);::R(K)+S(I)
- R(f);::R(K)+S(I)
- Refutation
- R(f);P_PINS(I)
- Try
- S(I);
- Threat
- DUALS(6)
- Vars
- R(f);CHECK::R(K)+S(H)
- P(g);XP(F)::R(K)+S(H),DCHECK,XP(g)
- R(f);::R(K)+S(H)
- R(h);::R(K)+S(H)
- Refutation
- S(a);
- Try
- R(E);CHECK,XP(e)
- Vars
- K(d);P-FLIGHT::B(B)
- Refutation
- S(a);XR(E)
- Try
- Actual
- S(H);
- Threat
- DUALS(7)
- Vars
- P(b);CHECK::R(K)+S(I)
- R(f);XP(D)::R(K)+S(I)
- P(g);XP(F)::R(K)+S(I)
- S(a);::R(K)+S(I)
- R(f);::R(K)+S(I)
- R(h);::R(K)+S(I)
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).