MESON Chess Problem Database
Problem Display
PID: 20885 (1qrn2B1/bbp5/p5k1/3N2p1/4K3/4p2R/1BQ4n/6R1 w - - 0 1)
Ellerman, Arnoldo
1st Prize, Good Companions (March), 1919
#2
7 + 11
| 3132 | The Good Companion Two-Mover | 1922 |
| 3360 | Simple Two-move Themes | 1924 |
| 5424 | Versunkene Schatze | 1998 |
| 133 | The Problemist Supplement | 2003 |
SOLUTION
- SOUND
- Sets
- 1...Bxd5+
- 2.Kxd5#
- 1...Sf1
- 2.Kf3#
- 1...Sf3
- 2.Kxf3#
- 1...Sg4
- 2.Kf3#
- 1...Sc6
- 2.Sf4#
- 1...Sf7
- 2.Bh7#
- 1...g4
- 2.Kf4#
- 1...c5
- 2.Kxe3#
- 1...c6
- 2.Se7#
- 1...Bxd5+
- Tries
- 1.Bd4?
- threat
- 2.Kxe3#
- 1...Bxd5+
- 2.Kxd5#
- 1...g4
- 2.Kf4#
- 1...Sf1
- 2.Kf3#
- 1...Sg4
- 2.Kf3#
- 1...e2
- 2.Ke3#
- 1...Bxd4!
- threat
- 1.Bf6?
- threat
- 2.Ke5#
- 2.Rxg5#
- 1...Bd4
- 2.Kxd4#
- 2.Rxg5#
- 1...Sf3
- 2.Kxf3#
- 1...Sg4
- 2.Kf3#
- 1...Sc6
- 2.Rxg5#
- 1...Se6
- 2.Ke5#
- 1...Sf7
- 2.Bh7#
- 1...g4
- 2.Kf4#
- 2.Ke5#
- 1...c5
- 2.Kxe3#
- 2.Rxg5#
- 1...c6
- 2.Rxg5#
- 1...Bxd5+!
- threat
- 1.Rf1?
- threat
- 2.Bh7#
- 1...Bxd5+
- 2.Kxd5#
- 1...Sxf1
- 2.Kf3#
- 1...g4
- 2.Kf4#
- 1...Sf3
- 2.Kxf3#
- 1...Bd4!
- threat
- 1.Rxh2?
- threat
- 2.Kf3#
- 1...Bxd5+
- 2.Kxd5#
- 1...g4
- 2.Kf4#
- 2.Rxg4#
- 1...Bd4!
- threat
- 1.Rh7?
- threat
- 2.Ke5#
- 1...Bxd5+
- 2.Kxd5#
- 1...g4
- 2.Kf4#
- 1...Bd4
- 2.Kxd4#
- 1...Sf3
- 2.Kxf3#
- 1...Sg4
- 2.Kf3#
- 1...Sc6
- 2.Sf4#
- 1...c5
- 2.Kxe3#
- 1...c6
- 2.Se7#
- 1...Sf7!
- threat
- 1.Qc6+?
- 1...Sxc6
- 2.Sf4#
- 1...Se6
- 2.Sf4#
- 2.Se7#
- 2.Qxe6#
- 1...Bxc6!
- 1...Sxc6
- 1.Bd4?
- Keys
- 1.Bh8!
- threat
- 2.Ke5#
- 1...Bxd5+
- 2.Kxd5#
- 1...g4
- 2.Kf4#
- 1...Bd4
- 2.Kxd4#
- 1...Sf3
- 2.Kxf3#
- 1...Sg4
- 2.Kf3#
- 1...Sc6
- 2.Sf4#
- 1...Sf7
- 2.Bh7#
- 1...c5
- 2.Kxe3#
- 1...c6
- 2.Se7#
- threat
- 1.Bh8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- B(g);CHECK,XS(F)::QAB(C)+K(E),XB(g)
- S(a);::QAB(C)+K(E)
- S(a);::QAB(C)+K(E),XS(a)
- S(a);N_SPINP(c)::QAB(C)+K(E)
- S(k);N_PINS(F)::S(F)
- S(k);SBLOCK::B(G)
- P(c);::QAB(C)+K(E)
- P(h);::QAB(C)+K(E),XP(b)
- P(h);N_PINS(F)::S(F)
- Tries
- Try
- B(B);
- Threat
- QAB(C)+K(E),XP(b)
- Vars
- B(g);CHECK,XS(F)::QAB(C)+K(E),XB(g)
- P(c);::QAB(C)+K(E)
- S(a);::QAB(C)+K(E)
- S(a);N_SPINP(c)::QAB(C)+K(E)
- P(b);::QAB(C)+K(E)
- Refutation
- B(f);XB(B)
- Try
- B(B);
- Threat
- DUALS(2)
- Vars
- S(a);::QAB(C)+K(E),XS(a)
- S(a);N_SPINP(c)::QAB(C)+K(E)
- S(k);N_PINS(F)::R1(A),XP(c)
- S(k);::QAB(C)+K(E)
- S(k);SBLOCK::B(G)
- P(h);N_PINS(F)::R1(A),XP(c)
- Refutation
- B(g);CHECK,XS(F)
- Try
- R(A);N_PINP(c)
- Threat
- B(G)
- Vars
- B(g);CHECK,XS(F)::QAB(C)+K(E),XB(g)
- S(a);XR(A)::QAB(C)+K(E)
- P(c);::QAB(C)+K(E)
- S(a);::QAB(C)+K(E),XS(a)
- Refutation
- B(f);
- Try
- R(D);XS(a)
- Threat
- QAB(C)+K(E)
- Vars
- B(g);CHECK,XS(F)::QAB(C)+K(E),XB(g)
- Refutation
- B(f);
- Try
- R(D);
- Threat
- QAB(C)+K(E)
- Vars
- B(g);CHECK,XS(F)::QAB(C)+K(E),XB(g)
- P(c);::QAB(C)+K(E)
- B(f);::QAB(C)+K(E),XB(f)
- S(a);::QAB(C)+K(E),XS(a)
- S(a);N_SPINP(c)::QAB(C)+K(E)
- S(k);N_PINS(F)::S(F)
- P(h);::QAB(C)+K(E),XP(b)
- P(h);N_PINS(F)::S(F)
- Refutation
- S(k);
- Try
- Q(C);CHECK,N_SPINS(F)
- Vars
- S(k);XQ(C)::S(F)
- Refutation
- B(g);P_PINS(F),XQ(C)
- Try
- Actual
- B(B);
- Threat
- QAB(C)+K(E)
- Vars
- B(g);CHECK,XS(F)::QAB(C)+K(E),XB(g)
- P(c);::QAB(C)+K(E)
- B(f);::QAB(C)+K(E),XB(f)
- S(a);::QAB(C)+K(E),XS(a)
- S(a);N_SPINP(c)::QAB(C)+K(E)
- S(k);N_PINS(F)::S(F)
- S(k);SBLOCK::B(G)
- P(h);::QAB(C)+K(E),XP(b)
- P(h);N_PINS(F)::S(F)
Developed and maintained by Brian Stephenson.
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