MESON Chess Problem Database
Problem Display
PID: 21275 (K1Nn4/Rpp1Rp2/1PP2B2/3k4/B3N3/1n1P4/8/8 w - - 0 1)
Janet, Frank
Chess Amateur (The), 1918
#2
10 + 6
| 2681 | All Change Here! | 1919 |
| 5063 | Spectacular Chess Problems | 1965 |
SOLUTION
- SOUND
- Sets
- 1...Sa1
- 2.Ra5#
- 1...Sc1
- 2.Ra5#
- 1...Sd2
- 2.Ra5#
- 1...Sd4
- 2.Re5#
- 1...Sa5
- 2.Rxa5#
- 1...Sc5
- 2.Sc3#
- 1...Sxc6
- 2.Bxb3#
- 1...Se6
- 2.Rd7#
- 1...bxc6
- 2.Bxb3#
- 1...cxb6
- 2.Sxb6#
- 1...Sa1
- Tries
- 1.Kb8?
- 1...bxc6
- 2.Bxb3#
- 1...cxb6
- 2.Sxb6#
- 1...Sa1
- 2.Ra5#
- 1...Sc1
- 2.Ra5#
- 1...Sd2
- 2.Ra5#
- 1...Sd4
- 2.Re5#
- 1...Sa5
- 2.Rxa5#
- 1...Sc5
- 2.Sc3#
- 1...Se6
- 2.Rd7#
- 1...Sxc6+!
- 1...bxc6
- 1.Ra5+?
- 1...Sc5
- 2.Sc3#
- 2.Rxc5#
- 1...Sxa5!
- 1...Sc5
- 1.Ra6?
- 1...Sxc6
- 2.Bxb3#
- 1...bxc6
- 2.Bxb3#
- 1...cxb6
- 2.Sxb6#
- 1...Sd4
- 2.Re5#
- 1...Sa1
- 2.Ra5#
- 1...Sc1
- 2.Ra5#
- 1...Sd2
- 2.Ra5#
- 1...Sa5
- 2.Rxa5#
- 1...Sc5
- 2.Sc3#
- 1...Se6
- 2.Rd7#
- 1...bxa6!
- 1...Sxc6
- 1.bxc7?
- threat
- 2.Sb6#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sxc6
- 2.Sb6#
- 2.Bxb3#
- 1...bxc6
- 2.Sb6#
- 2.Bxb3#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sd4
- 2.Sb6#
- 2.Re5#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sa1
- 2.Sb6#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sc1
- 2.Sb6#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sd2
- 2.Sb6#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sa5
- 2.Sb6#
- 2.cxd8Q#
- 2.cxd8R#
- 1...Sc5
- 2.Sc3#
- 2.Sb6#
- 1...Se6
- 2.Sb6#
- 2.Rd7#
- 1...b6
- 2.Sxb6#
- 2.cxd8Q#
- 2.cxd8R#
- 1...b5!
- threat
- 1.Kb8?
- Keys
- 1.Re8!
- 1...Sxc6
- 2.Bxb3#
- 1...bxc6
- 2.Bxb3#
- 1...cxb6
- 2.Sxb6#
- 1...Sd4
- 2.Re5#
- 1...Sa1
- 2.Ra5#
- 1...Sc1
- 2.Ra5#
- 1...Sd2
- 2.Ra5#
- 1...Sa5
- 2.Rxa5#
- 1...Sc5
- 2.Sc3#
- 1...Se6
- 2.Se7#
- 1...Sxc6
- 1.Re8!
There are these versions: 103991
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::R(G)
- S(a);SBLOCK::R1(H)
- S(a);N_GUARD::R(G),XS(a)
- S(a);SBLOCK::S(C)
- S(f);SBLOCK,XP(E)::B(B),XS(a)
- S(f);SBLOCK::R(H)
- P(c);SBLOCK,XP(E)::B(B),XS(a)
- P(d);XP(D)::S(J),XP(d)
- Tries
- Try
- K(I);P-FLIGHT
- Vars
- P(c);SBLOCK,XP(E)::B(B),XS(a)
- P(d);XP(D)::S(J),XP(d)
- S(a);N_GUARD::R(G)
- S(a);SBLOCK::R1(H)
- S(a);N_GUARD::R(G),XS(a)
- S(a);SBLOCK::S(C)
- S(f);SBLOCK::R(H)
- Refutation
- S(f);CHECK,XP(E)
- Try
- R(G);CHECK
- Refutation
- S(a);XR(G)
- Try
- R(G);
- Vars
- S(f);SBLOCK,XP(E)::B(B),XS(a)
- P(c);SBLOCK,XP(E)::B(B),XS(a)
- P(d);XP(D)::S(J),XP(d)
- S(a);SBLOCK::R1(H)
- S(a);N_GUARD::R(G)
- S(a);N_GUARD::R(G),XS(a)
- S(a);SBLOCK::S(C)
- S(f);SBLOCK::R(H)
- Refutation
- P(c);XR(G)
- Try
- P(D);XP(d)
- Threat
- DUALS(3)
- Refutation
- P(c);
- Try
- Actual
- R(H);
- Vars
- S(f);SBLOCK,XP(E)::B(B),XS(a)
- P(c);SBLOCK,XP(E)::B(B),XS(a)
- P(d);XP(D)::S(J),XP(d)
- S(a);SBLOCK::R1(H)
- S(a);N_GUARD::R(G)
- S(a);N_GUARD::R(G),XS(a)
- S(a);SBLOCK::S(C)
- S(f);SBLOCK::S(J)
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