MESON Chess Problem Database
Problem Display
PID: 930 (5N2/2K1p3/4R1n1/2pk1n2/R5N1/2P5/8/8 w - - 0 1)
Lang, JCV
The Problemist Supplement, 1993
#2
6 + 5
| 3713 | Snap | 2001 |
SOLUTION
- SOUND
- Sets
- 1...Se3
- 2.Sxe3#
- 1...Sg3
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 2.c4#
- 1...Sfh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 1...Sh6
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...Sf4
- 2.Re5#
- 1...Sgh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sxf8
- 2.Re5#
- 1...Sh8
- 2.Re5#
- 1...c4
- 2.Ra5#
- 1...Se3
- Tries
- 1.Kd7?
- 1...Se5+
- 2.Rxe5#
- 1...c4
- 2.Ra5#
- 1...Se3
- 2.Sxe3#
- 1...Sg3
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 2.c4#
- 1...Sfh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 1...Sh6
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...Sf4
- 2.Re5#
- 1...Sgh4
- 2.Re5#
- 1...Sh8
- 2.Re5#
- 1...Sxf8+!
- 1...Se5+
- 1.Sxg6?
- threat
- 2.Sf4#
- 2.Re5#
- 1...c4
- 2.Re5#
- 1...Kxe6!
- threat
- 1.Rb4?
- 1...Sxf8
- 2.Re5#
- 1...c4
- 2.Rb5#
- 1...Se3
- 2.Sxe3#
- 1...Sg3
- 2.Se3#
- 1...Sd4
- 2.Se3#
- 2.c4#
- 1...Sfh4
- 2.Se3#
- 1...Sd6
- 2.Se3#
- 1...Sh6
- 2.Se3#
- 1...Sg7
- 2.Se3#
- 1...Sf4
- 2.Re5#
- 1...Sgh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sh8
- 2.Re5#
- 1...cxb4!
- 1...Sxf8
- 1.Rd4+?
- 1...Sxd4
- 2.Se3#
- 1...cxd4!
- 1...Sxd4
- 1.Rae4?
- threat
- 2.c4#
- 1...Sd4
- 2.Se3#
- 1...Se5
- 2.R6xe5#
- 1...Se3
- 2.Sxe3#
- 1...Sd6
- 2.Se3#
- 1...c4!
- threat
- 1.Re1?
- 1...Sxf8
- 2.Re5#
- 1...c4
- 2.Ra5#
- 1...Sg3
- 2.Rd1#
- 1...Sd4
- 2.c4#
- 1...Sfh4
- 2.Rd1#
- 1...Sd6
- 2.Rd1#
- 1...Sh6
- 2.Rd1#
- 1...Sg7
- 2.Rd1#
- 1...Sf4
- 2.Re5#
- 1...Sgh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sh8
- 2.Re5#
- 1...e5
- 2.Sf6#
- 1...e6
- 2.Sf6#
- 1...Se3!
- 1...Sxf8
- 1.Re3?
- 1...Sxf8
- 2.Re5#
- 1...c4
- 2.Ra5#
- 1...Sg3
- 2.Rd3#
- 1...Sd4
- 2.c4#
- 1...Sfh4
- 2.Rd3#
- 1...Sd6
- 2.Rd3#
- 1...Sh6
- 2.Rd3#
- 1...Sg7
- 2.Rd3#
- 1...Sf4
- 2.Re5#
- 1...Sgh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sh8
- 2.Re5#
- 1...e5
- 2.Sf6#
- 1...e6
- 2.Sf6#
- 1...Sxe3!
- 1...Sxf8
- 1.Kd7?
- Keys
- 1.Re2!
- 1...Sxf8
- 2.Re5#
- 1...c4
- 2.Ra5#
- 1...Se3
- 2.Rd2#
- 1...Sg3
- 2.Rd2#
- 1...Sd4
- 2.c4#
- 1...Sfh4
- 2.Rd2#
- 1...Sd6
- 2.Rd2#
- 1...Sh6
- 2.Rd2#
- 1...Sg7
- 2.Rd2#
- 1...Sf4
- 2.Re5#
- 1...Sgh4
- 2.Re5#
- 1...Se5
- 2.Rxe5#
- 1...Sh8
- 2.Re5#
- 1...e5
- 2.Sf6#
- 1...e6
- 2.Sf6#
- 1...Sxf8
- 1.Re2!
Anticipated by 21080(1916)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 6
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(c);N_GUARD::S(C),XS(c)
- S(c);N_GUARD::S(C)
- S(d);N_GUARD::R1(D)
- S(d);N_GUARD::R1(D),XS(d)
- S(d);N_GUARD,XS(F)::R1(D)
- P(a);OGATEB,SBLOCK::R(B)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- S(d);CHECK,N_GUARD::R1(D),XS(d)
- P(a);OGATEB,SBLOCK::R(B)
- S(c);N_GUARD::S(C),XS(c)
- S(c);N_GUARD::S(C)
- S(d);N_GUARD::R1(D)
- Refutation
- S(d);CHECK,XS(F)
- Try
- S(F);XS(d)
- Threat
- DUALS(2)
- Vars
- P(a);::R1(D)
- Refutation
- K(b);S_FLIGHT,XR(D)
- Try
- R(B);
- Vars
- S(d);N_GUARD,XS(F)::R1(D)
- P(a);OGATEB,SBLOCK::R(B)
- S(c);N_GUARD::S(C),XS(c)
- S(c);N_GUARD::S(C)
- S(d);N_GUARD::R1(D)
- S(d);N_GUARD::R1(D),XS(d)
- Refutation
- P(a);XR(B)
- Try
- R(B);CHECK
- Vars
- S(c);XR(B)::S(C)
- Refutation
- P(a);XR(B)
- Try
- R(B);
- Threat
- P(A)
- Vars
- S(c);N_GUARD::S(C)
- S(d);N_GUARD::R1(D),XS(d)
- S(c);N_GUARD::S(C),XS(c)
- Refutation
- P(a);
- Try
- R(D);
- Vars
- S(d);N_GUARD,XS(F)::R1(D)
- P(a);OGATEB,SBLOCK::R(B)
- S(c);N_GUARD::R(D)
- S(c);SBLOCK::P(A)
- S(d);N_GUARD::R1(D)
- S(d);N_GUARD::R1(D),XS(d)
- P(e);N_GUARD::S(C)
- Refutation
- S(c);
- Try
- R(D);
- Vars
- S(d);N_GUARD,XS(F)::R1(D)
- P(a);OGATEB,SBLOCK::R(B)
- S(c);N_GUARD::R(D)
- S(c);SBLOCK::P(A)
- S(d);N_GUARD::R1(D)
- S(d);N_GUARD::R1(D),XS(d)
- P(e);N_GUARD::S(C)
- Refutation
- S(c);XR(D)
- Try
- Actual
- R(D);
- Vars
- S(d);N_GUARD,XS(F)::R1(D)
- P(a);OGATEB,SBLOCK::R(B)
- S(c);N_GUARD::R(D)
- S(c);SBLOCK::P(A)
- S(d);N_GUARD::R1(D)
- S(d);N_GUARD::R1(D),XS(d)
- P(e);N_GUARD::S(C)
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