MESON Chess Problem Database
Problem Display
PID: 21169 (8/1P6/1p2K3/1rp1B3/2r1k2p/1B1p3p/4PbbN/Q2N1RR1 w - - 0 1)
Moller, Herbert
Good Companions (December), 1917
#2
10 + 10
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Bd5#
- 1...Rc2
- 2.Bd5#
- 1...Rc3
- 2.Bd5#
- 1...Ra4
- 2.Bd5#
- 1...Rcb4
- 2.Bd5#
- 1...Be1
- 2.Rf4#
- 1...Bxg1
- 2.Rf4#
- 1...Bd4
- 2.Rf4#
- 1...Bxf1
- 2.Rg4#
- 1...Bh1
- 2.Rg4#
- 1...Bf3
- 2.exf3#
- 1...Rc1
- Tries
- 1.Sg4?
- threat
- 2.Sdxf2#
- 2.Sgxf2#
- 2.Sf6#
- 1...Bxg1
- 2.Sf6#
- 2.Rf4#
- 1...Be1
- 2.Sf6#
- 2.Rf4#
- 1...Be3
- 2.Sf6#
- 1...Bg3
- 2.Sf6#
- 1...Bd4
- 2.Sf6#
- 2.Rf4#
- 1...dxe2!
- threat
- 1.Bxc4?
- threat
- 2.Bxd3#
- 2.Bd5#
- 2.exd3#
- 1...Bxf1
- 2.Bxd3#
- 2.Bd5#
- 2.Rg4#
- 1...Rb3
- 2.Bd5#
- 1...d2
- 2.Bd3#
- 2.Bd5#
- 1...dxe2!
- threat
- 1.Rxf2?
- threat
- 2.Rf4#
- 1...Bf3
- 2.exf3#
- 1...dxe2!
- threat
- 1.Qc3?
- threat
- 2.Qxd3#
- 2.exd3#
- 1...Rxc3
- 2.Bd5#
- 1...Rxb3
- 2.exd3#
- 1...Bxf1
- 2.Rg4#
- 2.Qxd3#
- 1...dxe2
- 2.Sxf2#
- 2.Bc2#
- 1...d2
- 2.Sxf2#
- 2.Bc2#
- 2.Qd3#
- 1...Rd4!
- threat
- 1.Qc1?
- threat
- 2.Sxf2#
- 2.Qf4#
- 1...Rxc1
- 2.Bd5#
- 1...Bxg1
- 2.Rf4#
- 2.Qf4#
- 1...dxe2
- 2.Sxf2#
- 1...Be1
- 2.Rf4#
- 2.Qe3#
- 2.Qf4#
- 2.Qxc4#
- 1...Be3
- 2.Qxe3#
- 1...Bg3
- 2.Qe3#
- 2.Qxc4#
- 1...Bd4
- 2.Rf4#
- 2.Qf4#
- 1...d2!
- threat
- 1.Sg4?
- Keys
- 1.Qa4!
- 1...Rxa4
- 2.Bd5#
- 1...Rxb3
- 2.Qc6#
- 1...Bxg1
- 2.Rf4#
- 1...Bxf1
- 2.Rg4#
- 1...dxe2
- 2.Bc2#
- 1...Rd4
- 2.Bd5#
- 1...Rcb4
- 2.Bd5#
- 1...Rbb4
- 2.Qc6#
- 1...Ra5
- 2.Qc6#
- 1...Be1
- 2.Rf4#
- 2.Qxc4#
- 1...Be3
- 2.Sc3#
- 1...Bg3
- 2.Qxc4#
- 1...Bd4
- 2.Rf4#
- 1...Bh1
- 2.Rg4#
- 1...Bf3
- 2.exf3#
- 1...d2
- 2.Bc2#
- 1...Rxa4
- 1.Qa4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 8
- REMOVED MATES = 4
- Sets
- R(e);OGATE::B(G)
- B(a);OGATE::R1(C)
- B(a);OGATE,XR(D)::R1(C)
- B(b);OGATE,XR(C)::R(D)
- B(b);OGATE::R(D)
- B(b);OGATE::P(E),XB(b)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(a);::S(F)
- Refutation
- P(c);XP(E)
- Try
- B(G);XR(e)
- Threat
- DUALS(3)
- Vars
- R(h);::B(G)
- Refutation
- P(c);XP(E)
- Try
- R(C);XB(a)
- Threat
- R1(C)
- Vars
- B(b);OGATE::P(E),XB(b)
- Refutation
- P(c);XP(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(e);OGATE,XQ(A)::B(G)
- R(h);XB(G)::P(E),XP(c)
- Refutation
- R(e);
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- R(e);OGATE,XQ(A)::B(G)
- P(c);XP(E)::S(B),XB(a)
- B(a);N_GUARD::QAR1(A),XB(a)
- Refutation
- P(c);
- Try
- Actual
- Q(A);P_PINR(e)
- Vars
- R(e);N_SPINR(e),OGATE,XQ(A)::B(G)
- R(h);OGATE,XB(G)::QAB(A)
- B(a);OGATE,XR(D)::R1(C)
- B(b);OGATE,XR(C)::R(D)
- P(c);OGATEB,XP(E)::B(G)
- R(e);OGATE::B(G)
- R(h);N_SPINR(e),OGATE::QAB(A)
- R(h);OGATE::QAB(A)
- B(a);SBLOCK::S(B)
- B(a);N_GUARD::QAR2(A),XR(e)
- B(a);N_SPINR(e),OGATE::R1(C)
- B(b);OGATE::R(D)
- B(b);OGATE::P(E),XB(b)
- P(c);OGATEB::B(G)
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