MESON Chess Problem Database
Problem Display
PID: 3083 (8/3p4/R1N1b3/2k1Nn2/K1p2p2/5p2/1P1Q1P2/8 w - - 0 1)
Ellerman, Arnoldo
Good Companions, 1918
#2
7 + 7
| 2681 | All Change Here! | 1919 |
SOLUTION
- SOUND
- Sets
- 1...Bd5
- 2.Qb4#
- 1...Bf7
- 2.Sxd7#
- 1...Bg8
- 2.Sxd7#
- 1...Se3
- 2.Qd4#
- 1...Sg3
- 2.Qd4#
- 1...Sd4
- 2.Qxd4#
- 1...Sh4
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sh6
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...c3
- 2.b4#
- 1...dxc6
- 2.Rxc6#
- 1...d5
- 2.Qb4#
- 1...d6
- 2.Qa5#
- 1...Bd5
- Tries
- 1.Ka5?
- 1...dxc6
- 2.Rxc6#
- 1...Bd5
- 2.Qb4#
- 1...Sd4
- 2.Qxd4#
- 1...d5
- 2.Qb4#
- 1...Bf7
- 2.Sxd7#
- 1...Bg8
- 2.Sxd7#
- 1...Se3
- 2.Qd4#
- 1...Sg3
- 2.Qd4#
- 1...Sh4
- 2.Qd4#
- 1...Sd6
- 2.Qd4#
- 1...Sh6
- 2.Qd4#
- 1...Se7
- 2.Qd4#
- 1...Sg7
- 2.Qd4#
- 1...c3
- 2.b4#
- 1...d6!
- 1...dxc6
- 1.Sa5?
- threat
- 2.Sb7#
- 1...Bd5
- 2.Sxd7#
- 1...Sd6
- 2.Qxd6#
- 1...Sd4!
- threat
- 1.Sa7?
- 1...Bd5
- 2.Sxd7#
- 1...Bf7
- 2.Sxd7#
- 1...Bg8
- 2.Sxd7#
- 1...Se3
- 2.Qd6#
- 1...Sg3
- 2.Qd6#
- 1...Sh4
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sh6
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...Sg7
- 2.Qd6#
- 1...c3
- 2.b4#
- 1...d5
- 2.Rc6#
- 1...d6
- 2.Rc6#
- 1...Sd4!
- 1...Bd5
- 1.Sb8?
- 1...Bd5
- 2.Sexd7#
- 2.Sbxd7#
- 1...Bf7
- 2.Sexd7#
- 2.Sbxd7#
- 1...Bg8
- 2.Sexd7#
- 2.Sbxd7#
- 1...Se3
- 2.Qd6#
- 1...Sg3
- 2.Qd6#
- 1...Sh4
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sh6
- 2.Qd6#
- 1...Se7
- 2.Qd6#
- 1...Sg7
- 2.Qd6#
- 1...c3
- 2.b4#
- 1...d5
- 2.Rc6#
- 1...d6
- 2.Rc6#
- 1...Sd4!
- 1...Bd5
- 1.Sd8?
- threat
- 2.Sb7#
- 1...Bd5
- 2.Sxd7#
- 1...Sd6
- 2.Qxd6#
- 1...Sd4!
- threat
- 1.Rb6?
- threat
- 2.Rb5#
- 1...dxc6
- 2.Rxc6#
- 1...Bd5
- 2.Qb4#
- 1...Sd4
- 2.Qxd4#
- 1...d5
- 2.Qb4#
- 1...Sd6
- 2.Qd4#
- 1...Kxb6!
- threat
- 1.b3?
- threat
- 2.b4#
- 1...Bd5
- 2.Qb4#
- 1...Sd4
- 2.Qxd4#
- 1...d5
- 2.Qb4#
- 1...cxb3!
- threat
- 1.Ka5?
- Keys
- 1.Se7!
- 1...Sxe7
- 2.Qd6#
- 1...Bd5
- 2.Sxd7#
- 2.Qxd5#
- 1...Bf7
- 2.Sxd7#
- 1...Bg8
- 2.Sxd7#
- 1...Se3
- 2.Qd6#
- 1...Sg3
- 2.Qd6#
- 1...Sd4
- 2.Qb4#
- 1...Sh4
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sh6
- 2.Qd6#
- 1...Sg7
- 2.Qd6#
- 1...c3
- 2.b4#
- 1...d5
- 2.Rc6#
- 1...d6
- 2.Rc6#
- 1...Sxe7
- 1.Se7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 10
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- B(f);SBLOCK::QAB1(B)
- B(f);N_GUARD::S(E),XP(g)
- S(e);N_GUARD::QAB1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- P(b);N_GUARD::P(A)
- P(g);OGATE,XS(G)::R1(F),XP(g)
- P(g);SBLOCK::QAB1(B)
- P(g);SBLOCK::QAR2(B)
- Tries
- Try
- K(D);P-FLIGHT
- Vars
- P(g);OGATE,XS(G)::R1(F),XP(g)
- B(f);SBLOCK::QAB1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- P(g);SBLOCK::QAB1(B)
- B(f);N_GUARD::S(E),XP(g)
- S(e);N_GUARD::QAB1(B)
- P(b);N_GUARD::P(A)
- Refutation
- P(g);
- Try
- S(G);
- Threat
- S(G)
- Vars
- B(f);N_GUARD::S(E),XP(g)
- S(e);N_GUARD::QAB1(B),XS(e)
- Refutation
- S(e);
- Try
- S(G);
- Vars
- B(f);N_GUARD::S(E),XP(g)
- S(e);N_GUARD::QAB1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- P(b);N_GUARD::P(A)
- P(g);N_GUARD::R1(F)
- Refutation
- S(e);
- Try
- S(G);
- Vars
- S(e);N_GUARD::QAB1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- P(b);N_GUARD::P(A)
- P(g);N_GUARD::R1(F)
- Refutation
- S(e);
- Try
- S(G);
- Threat
- S(G)
- Vars
- B(f);N_GUARD::S(E),XP(g)
- S(e);N_GUARD::QAB1(B),XS(e)
- Refutation
- S(e);
- Try
- R(F);
- Threat
- R1(F)
- Vars
- P(g);OGATE,XS(G)::R1(F),XP(g)
- B(f);SBLOCK::QAB1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- P(g);SBLOCK::QAB1(B)
- S(e);N_GUARD::QAB1(B)
- Refutation
- K(d);S_FLIGHT,XR(F)
- Try
- P(A);
- Threat
- P(A)
- Vars
- B(f);SBLOCK::QAB1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- P(g);SBLOCK::QAB1(B)
- Refutation
- P(b);XP(A)
- Try
- Actual
- S(G);
- Vars
- S(e);N_GUARD,XS(G)::QAB1(B)
- B(f);N_GUARD::S(E),XP(g)
- S(e);N_GUARD::QAB1(B)
- S(e);SBLOCK::QAB1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- P(b);N_GUARD::P(A)
- P(g);N_GUARD::R1(F)
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