MESON Chess Problem Database
Problem Display
PID: 64815 (B4Nb1/q1P1p1b1/3p2p1/pp1rk1NR/6PB/1QRprpP1/K1P5/8 w - - 0 1)
Ellerman, Arnoldo
Good Companions (December), 1921
#2
12 + 13
| 3132 | The Good Companion Two-Mover | 1922 |
| 1085 | Australian Chess Problem Magazine | 1995 |
SOLUTION
- SOUND
- Sets
- 1...Kf6
- 2.Sd7#
- 1...Qd4
- 2.Sd7#
- 1...Re4
- 2.Sxf3#
- 1...Rd4
- 2.Sxf3#
- 2.Sf7#
- 2.Sd7#
- 1...Rc5
- 2.Sxf3#
- 1...Kf6
- Tries
- 1.Sge6+?
- 1...Ke4
- 2.Bxd5#
- 2.Qxd5#
- 1...gxh5
- 2.Qxd5#
- 1...g5!
- 1...Ke4
- 1.Sf7+?
- 1...Ke4
- 2.Qxd5#
- 1...Kd4!
- 1...Ke4
- 1.Qc4?
- threat
- 2.Sxf3#
- 2.Sf7#
- 2.Sd7#
- 2.Qf4#
- 1...Kf6
- 2.Sd7#
- 1...Qxc7
- 2.Sxf3#
- 2.Sf7#
- 2.Qf4#
- 1...Bxf8
- 2.Qf4#
- 1...gxh5
- 2.Sd7#
- 2.Qf4#
- 1...Qd4
- 2.Sd7#
- 1...Re4
- 2.Sxf3#
- 2.Sf7#
- 2.Sd7#
- 1...Rd4
- 2.Sxf3#
- 2.Sf7#
- 2.Sd7#
- 1...Rc5
- 2.Sxf3#
- 2.Sf7#
- 2.Sd7#
- 1...Be6
- 2.Sxf3#
- 2.Sf7#
- 2.Qf4#
- 1...Bf7
- 2.Sxf3#
- 2.Sxf7#
- 2.Sd7#
- 2.Qf4#
- 1...f2
- 2.Sf3#
- 2.Sf7#
- 2.Sd7#
- 2.Qf4#
- 1...bxc4!
- threat
- 1.Qxd5+?
- 1...Kf6
- 2.Se4#
- 2.Sgh7#
- 2.Sd7#
- 1...Bxd5+!
- 1...Kf6
- 1.Qb4?
- threat
- 2.Sxf3#
- 2.Sf7#
- 2.Sd7#
- 2.Qf4#
- 1...Rd4+
- 2.Sf7#
- 1...Rc5+
- 2.Sf7#
- 1...Kf6
- 2.Sd7#
- 1...Qxc7
- 2.Sxf3#
- 2.Sf7#
- 2.Qf4#
- 1...Bxf8
- 2.Qf4#
- 1...gxh5
- 2.Sd7#
- 2.Qf4#
- 1...Qd4
- 2.Sd7#
- 1...Re4
- 2.Sxf3#
- 2.Sf7#
- 2.Sd7#
- 1...Be6
- 2.Sxf3#
- 2.Sf7#
- 2.Qf4#
- 1...Bf7
- 2.Sxf3#
- 2.Sxf7#
- 2.Sd7#
- 2.Qf4#
- 1...f2
- 2.Sf3#
- 2.Sf7#
- 2.Sd7#
- 2.Qf4#
- 1...axb4+!
- threat
- 1.Sge6+?
- Keys
- 1.Qb2!
- threat
- 2.Rc5#
- 1...Rd4+
- 2.Sf7#
- 1...Rc5+
- 2.Rc4#
- 1...Kd4
- 2.Rc6#
- 1...Kf6
- 2.Sd7#
- 1...dxc2
- 2.Rxe3#
- 1...Qd4
- 2.Sd7#
- 1...Qc5
- 2.Rxc5#
- 1...Re4
- 2.Sxf3#
- 1...d2
- 2.Rxe3#
- threat
- 1.Qb2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 0
- Sets
- K(g);S_FLIGHT::S(L)
- Q(j);SBLOCK::S(L)
- R(b);SBLOCK::R(I)+S(H),DCHECK,XP(c)
- R(f);P_PINQ(C)::R(I)+S(H),DCHECK,XP(c)
- Tries
- Try
- S(H);CHECK
- Vars
- P(i);XR(I)::QAR1(C),XR(f)
- Refutation
- P(i);P_SPINP(i)
- Try
- S(H);CHECK
- Vars
- K(g);P-FLIGHT,P_SPINR(f)::QAB1(C),XR(f)
- Refutation
- K(g);S_FLIGHT
- Try
- Q(C);
- Threat
- DUALS(4)
- Vars
- K(g);S_FLIGHT::S(L)
- B(l);XS(L)::QAB1(C)
- Q(j);::S(L)
- Refutation
- P(e);XQ(C)
- Try
- Q(C);CHECK,P_SPINQ(C),XR(f)
- Refutation
- B(m);CHECK,XQ(C)
- Try
- Q(C);
- Threat
- DUALS(4)
- Vars
- R(f);CHECK::R(I)+S(H),DCHECK
- K(g);S_FLIGHT::S(L)
- B(l);XS(L)::QAB1(C)
- Q(j);::S(L)
- Refutation
- P(d);CHECK,XQ(C)
- Try
- Actual
- Q(C);
- Threat
- QAB(C)+R(D)
- Vars
- R(f);CHECK,SBLOCK::R(I)+S(H),DCHECK
- R(f);CHECK,N_GUARD,S_CUTQ(j)::QAB(C)+R(D)
- K(g);S_FLIGHT::QAB(C)+R(D)
- K(g);S_FLIGHT::S(L)
- P(a);OGATE,XP(B)::QAB(C)+R(D),DCHECK,XR(b)
- Q(j);SBLOCK::S(L)
- Q(j);::QAB(C)+R(D),XQ(j)
- R(b);SBLOCK::R(I)+S(H),DCHECK,XP(c)
- P(a);OGATE::QAB(C)+R(D),DCHECK,XR(b)
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