MESON Chess Problem Database
Problem Display
PID: 91909 (8/2Kp4/p2Ppp2/r1k3p1/p1P2pp1/P1P3N1/1N3n2/2BRRB2 w - - 0 1)
Herschel, Hans-Juergen
Deutsche Schachblatter, 1986
#2
11 + 11
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rb5
- 2.Sxa4#
- 1...Sxd1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Sd3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...fxg3
- 2.Be3#
- 1...f3
- 2.Be3#
- 1...e5
- 2.Rd5#
- 1...f5
- 2.Re5#
- 1...Rb5
- Tries
- 1.Kb7?
- 1...Sxd1
- 2.Se4#
- 1...fxg3
- 2.Be3#
- 1...Sd3
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...f3
- 2.Be3#
- 1...e5
- 2.Rd5#
- 1...f5
- 2.Re5#
- 1...Rb5+!
- 1...Sxd1
- 1.Bd2?
- 1...Sxd1
- 2.Se4#
- 1...fxg3
- 2.Be3#
- 1...Sh1
- 2.Se4#
- 1...Rb5
- 2.Sxa4#
- 1...Sd3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...f3
- 2.Be3#
- 1...f5
- 2.Re5#
- 1...e5!
- 1...Sxd1
- 1.Bxf4?
- threat
- 2.Be3#
- 1...Sxd1
- 2.Se4#
- 1...gxf4!
- threat
- 1.Be2?
- 1...Sxd1
- 2.Se4#
- 1...fxg3
- 2.Be3#
- 1...Sh1
- 2.Se4#
- 1...Rb5
- 2.Sxa4#
- 1...Sd3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...f3
- 2.Be3#
- 1...e5
- 2.Rd5#
- 1...f5!
- 1...Sxd1
- 1.Bg2?
- 1...Sxd1
- 2.Se4#
- 1...fxg3
- 2.Be3#
- 1...Sh1
- 2.Se4#
- 1...Sd3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...f3
- 2.Be3#
- 1...e5
- 2.Rd5#
- 1...f5
- 2.Re5#
- 1...Rb5!
- 1...Sxd1
- 1.Bd3?
- 1...Sxd1
- 2.Se4#
- 1...Sxd3
- 2.Se4#
- 1...fxg3
- 2.Be3#
- 1...Rb5
- 2.Sxa4#
- 1...Sh1
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...f3
- 2.Be3#
- 1...f5
- 2.Re5#
- 1...e5!
- 1...Sxd1
- 1.Rd3?
- 1...Sxd3
- 2.Se4#
- 1...fxg3
- 2.Be3#
- 1...Sd1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...f3
- 2.Be3#
- 1...e5
- 2.Rd5#
- 1...f5
- 2.Re5#
- 1...Rb5!
- 1...Sxd3
- 1.Re2?
- 1...Sxd1
- 2.Se4#
- 1...fxg3
- 2.Be3#
- 1...Sh1
- 2.Se4#
- 1...Sd3
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...f3
- 2.Be3#
- 1...e5
- 2.Rd5#
- 1...f5
- 2.Re5#
- 1...Rb5!
- 1...Sxd1
- 1.Rxe6?
- threat
- 2.Rd5#
- 1...Sxd1
- 2.Se4#
- 1...Sd3
- 2.Se4#
- 1...dxe6!
- threat
- 1.Kb7?
- Keys
- 1.Re4!
- 1...Sxd1
- 2.Sd3#
- 1...Sxe4
- 2.Sxe4#
- 1...fxg3
- 2.Be3#
- 1...Rb5
- 2.Sxa4#
- 1...Sh1
- 2.Sd3#
- 1...Sd3
- 2.Sxd3#
- 1...Sh3
- 2.Sd3#
- 1...f3
- 2.Be3#
- 1...e5
- 2.Rd5#
- 1...f5
- 2.Re5#
- 1...Sxd1
- 1.Re4!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 4
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- R(e);N_GUARD::S(E),XP(b)
- S(a);N_GUARD,XR(B)::S(H)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(c);N_GUARD,XS(H)::B(A)
- P(c);N_GUARD::B(A)
- P(i);N_GUARD::R1(B)
- P(j);N_GUARD::R(C)
- Tries
- Try
- K(K);P-FLIGHT
- Vars
- S(a);N_GUARD,XR(B)::S(H)
- P(c);N_GUARD,XS(H)::B(A)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(c);N_GUARD::B(A)
- P(i);N_GUARD::R1(B)
- P(j);N_GUARD::R(C)
- Refutation
- R(e);CHECK
- Try
- B(A);
- Vars
- S(a);N_GUARD,XR(B)::S(H)
- P(c);N_GUARD,XS(H)::B(A)
- S(a);N_GUARD::S(H)
- R(e);N_GUARD::S(E),XP(b)
- S(a);N_GUARD::S(H),XS(a)
- P(c);N_GUARD::B(A)
- P(j);N_GUARD::R(C)
- Refutation
- P(i);
- Try
- B(A);XP(c)
- Threat
- B(A)
- Vars
- S(a);N_GUARD,XR(B)::S(H)
- Refutation
- P(g);XB(A)
- Try
- B(D);
- Vars
- S(a);N_GUARD,XR(B)::S(H)
- P(c);N_GUARD,XS(H)::B(A)
- S(a);N_GUARD::S(H)
- R(e);N_GUARD::S(E),XP(b)
- S(a);N_GUARD::S(H),XS(a)
- P(c);N_GUARD::B(A)
- P(i);N_GUARD::R1(B)
- Refutation
- P(j);
- Try
- B(D);
- Vars
- S(a);N_GUARD,XR(B)::S(H)
- P(c);N_GUARD,XS(H)::B(A)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(c);N_GUARD::B(A)
- P(i);N_GUARD::R1(B)
- P(j);N_GUARD::R(C)
- Refutation
- R(e);
- Try
- B(D);
- Vars
- S(a);N_GUARD,XR(B)::S(H)
- S(a);N_GUARD,XB(D)::S(H)
- P(c);N_GUARD,XS(H)::B(A)
- R(e);N_GUARD::S(E),XP(b)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(c);N_GUARD::B(A)
- P(j);N_GUARD::R(C)
- Refutation
- P(i);
- Try
- R(B);
- Vars
- S(a);N_GUARD,XR(B)::S(H)
- P(c);N_GUARD,XS(H)::B(A)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(c);N_GUARD::B(A)
- P(i);N_GUARD::R1(B)
- P(j);N_GUARD::R(C)
- Refutation
- R(e);
- Try
- R(C);
- Vars
- S(a);N_GUARD,XR(B)::S(H)
- P(c);N_GUARD,XS(H)::B(A)
- S(a);N_GUARD::S(H)
- S(a);N_GUARD::S(H),XS(a)
- P(c);N_GUARD::B(A)
- P(i);N_GUARD::R1(B)
- P(j);N_GUARD::R(C)
- Refutation
- R(e);
- Try
- R(C);XP(i)
- Threat
- R1(B)
- Vars
- S(a);N_GUARD,XR(B)::S(H)
- S(a);N_GUARD::S(H)
- Refutation
- P(k);XR(C)
- Try
- Actual
- R(C);
- Vars
- S(a);N_GUARD,XR(B)::S(E)
- S(a);XR(C)::S(H),XS(a)
- P(c);N_GUARD,XS(H)::B(A)
- R(e);N_GUARD::S(E),XP(b)
- S(a);N_GUARD::S(E)
- S(a);N_GUARD::S(E),XS(a)
- P(c);N_GUARD::B(A)
- P(i);N_GUARD::R1(B)
- P(j);N_GUARD::R(C)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
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