MESON Chess Problem Database
Problem Display
PID: 21691 (8/3K4/2Q1R3/8/4N3/8/1R1p1P2/2NkB3 w - - 0 1)
Bettmann, Henry Wald
Good Companions (May), 1920
#2
8 + 2
| 3132 | The Good Companion Two-Mover | 1922 |
SOLUTION
- SOUND
- Sets
- 1...dxc1S
- 2.Sc3#
- 1...dxc1B
- 2.Sc3#
- 1...dxe1Q
- 2.Qc2#
- 1...dxe1S
- 2.Rd2#
- 1...dxe1B
- 2.Qc2#
- 1...dxe1R
- 2.Rd2#
- 2.Rd6#
- 2.Qc2#
- 1...dxc1S
- Tries
- 1.Sd3?
- threat
- 2.Sc3#
- 2.Rxd2#
- 1...dxe1Q
- 2.Qa4#
- 2.Qc1#
- 2.Qc2#
- 1...dxe1S
- 2.Sc3#
- 2.Rd2#
- 2.Qc1#
- 1...dxe1B
- 2.Qa4#
- 2.Qc1#
- 2.Qc2#
- 1...dxe1R
- 2.Sc3#
- 2.Rd2#
- 2.Qa4#
- 2.Qc1#
- 2.Qc2#
- 1...Ke2!
- threat
- 1.Sg3?
- threat
- 2.Rxd2#
- 2.Qc2#
- 1...dxc1Q
- 2.Qf3#
- 1...dxc1S
- 2.Rd2#
- 2.Qc2#
- 1...dxc1B
- 2.Qf3#
- 2.Qa4#
- 2.Qc2#
- 1...dxc1R
- 2.Rd2#
- 2.Qf3#
- 2.Qd5#
- 2.Qd6#
- 1...dxe1Q
- 2.Qc2#
- 1...dxe1B
- 2.Qc2#
- 1...dxe1R
- 2.Rd6#
- 2.Qc2#
- 1...dxe1S!
- threat
- 1.Sg5?
- threat
- 2.Rxd2#
- 2.Qc2#
- 1...dxc1Q
- 2.Qf3#
- 1...dxc1S
- 2.Rd2#
- 2.Qc2#
- 1...dxc1B
- 2.Qf3#
- 2.Qa4#
- 2.Qc2#
- 1...dxc1R
- 2.Rd2#
- 2.Qf3#
- 2.Qd5#
- 2.Qd6#
- 1...dxe1Q
- 2.Qc2#
- 1...dxe1B
- 2.Qc2#
- 1...dxe1R
- 2.Rd6#
- 2.Qc2#
- 1...dxe1S!
- threat
- 1.Sd6?
- threat
- 2.Rxd2#
- 2.Qc2#
- 1...dxc1Q
- 2.Qf3#
- 1...dxc1S
- 2.Rd2#
- 2.Qc2#
- 1...dxc1B
- 2.Qf3#
- 2.Qa4#
- 2.Qc2#
- 1...dxc1R
- 2.Rd2#
- 2.Qf3#
- 2.Qd5#
- 1...dxe1Q
- 2.Qc2#
- 1...dxe1B
- 2.Qc2#
- 1...dxe1R
- 2.Qc2#
- 1...dxe1S!
- threat
- 1.Sf6?
- threat
- 2.Rxd2#
- 2.Qc2#
- 1...dxc1Q
- 2.Qf3#
- 1...dxc1S
- 2.Rd2#
- 2.Qc2#
- 1...dxc1B
- 2.Qf3#
- 2.Qa4#
- 2.Qc2#
- 1...dxc1R
- 2.Rd2#
- 2.Qf3#
- 2.Qd5#
- 2.Qd6#
- 1...dxe1Q
- 2.Qc2#
- 1...dxe1B
- 2.Qc2#
- 1...dxe1R
- 2.Rd6#
- 2.Qc2#
- 1...dxe1S!
- threat
- 1.Qa4+?
- 1...Kxc1
- 2.Qc2#
- 2.Qa1#
- 1...Kxe1!
- 1...Kxc1
- 1.Qd5?
- threat
- 2.Qxd2#
- 1...Kxc1
- 2.Qxd2#
- 1...Kxe1!
- threat
- 1.Qd6?
- threat
- 2.Qxd2#
- 1...Kxc1
- 2.Qxd2#
- 1...Kxe1!
- threat
- 1.f3?
- threat
- 2.Sf2#
- 1...dxe1Q
- 2.Qc2#
- 1...dxe1B
- 2.Qc2#
- 1...Kxe1!
- threat
- 1.f4?
- threat
- 2.Sf2#
- 1...dxe1Q
- 2.Qc2#
- 1...dxe1B
- 2.Qc2#
- 1...Kxe1!
- threat
- 1.Sd3?
- Keys
- 1.Qc4!
- 1...Kxe1
- 2.Qe2#
- 1...dxc1Q
- 2.Qe2#
- 1...dxc1S
- 2.Sc3#
- 1...dxc1B
- 2.Sc3#
- 2.Qe2#
- 1...dxc1R
- 2.Qe2#
- 1...dxe1Q
- 2.Qc2#
- 1...dxe1S
- 2.Rd2#
- 1...dxe1B
- 2.Qc2#
- 1...dxe1R
- 2.Rd2#
- 2.Rd6#
- 2.Qc2#
- 1...Kxe1
- 1.Qc4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- P(b);SBLOCK,XS(A)::S(E)
- P(b);SBLOCK,XB(B)::QAB1(F)
- P(b);SBLOCK,XB(B)::R1(C)
- Tries
- Try
- S(A);
- Threat
- DUALS(2)
- Refutation
- K(a);P_SPINP(b),S_FLIGHT
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- P(b);SBLOCK,XS(A)::QAB(F)
- P(b);XB(B)::QAB1(F)
- Refutation
- P(b);XB(B)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- P(b);SBLOCK,XS(A)::QAB(F)
- P(b);XB(B)::QAB1(F)
- Refutation
- P(b);XB(B)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- P(b);SBLOCK,XS(A)::QAB(F)
- P(b);XB(B)::QAB1(F)
- Refutation
- P(b);XB(B)
- Try
- S(E);
- Threat
- DUALS(2)
- Vars
- P(b);SBLOCK,XS(A)::QAB(F)
- P(b);XB(B)::QAB1(F)
- Refutation
- P(b);XB(B)
- Try
- Q(F);CHECK
- Refutation
- K(a);P-FLIGHT,XB(B)
- Try
- Q(F);P_PINP(b)
- Threat
- QAR1(F),XP(b)
- Vars
- K(a);N_SPINP(b),P-FLIGHT,XS(A)::QAB1(F),XP(b)
- Refutation
- K(a);N_SPINP(b),P-FLIGHT,XB(B)
- Try
- Q(F);P_PINP(b)
- Threat
- QAR1(F),XP(b)
- Vars
- K(a);N_SPINP(b),P-FLIGHT,XS(A)::QAB1(F),XP(b)
- Refutation
- K(a);N_SPINP(b),P-FLIGHT,XB(B)
- Try
- P(D);
- Threat
- S(E)
- Vars
- P(b);SBLOCK,XB(B)::QAB1(F)
- Refutation
- K(a);P-FLIGHT,XB(B)
- Try
- P(D);
- Threat
- S(E)
- Vars
- P(b);SBLOCK,XB(B)::QAB1(F)
- Refutation
- K(a);P-FLIGHT,XB(B)
- Try
- Actual
- Q(F);
- Vars
- K(a);P-FLIGHT,XB(B)::QAR1(F)
- P(b);SBLOCK,XS(A)::QAB1(F)
- P(b);SBLOCK,XS(A)::S(E)
- P(b);SBLOCK,XB(B)::QAB1(F)
- P(b);SBLOCK,XB(B)::R1(C)
Developed and maintained by Brian Stephenson.
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