MESON Chess Problem Database
Problem Display
PID: 10170 (7B/6R1/5R2/1b6/4p3/1PkNn3/K7/3B1N2 w - - 0 1)
Lipton, Michael
Problemnoter, 1962
#2
8 + 4
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
SOLUTION
- SOUND
- Tries
- 1.Rf3?
- threat
- 2.Rd7#
- 1...Kd4
- 2.Rd7#
- 1...Bxd3
- 2.Rb7#
- 1...Sxd1
- 2.Rg2#
- 2.Rc7#
- 1...Sxf1
- 2.Rg2#
- 1...exd3
- 2.Rg4#
- 1...Bd7
- 2.Rxd7#
- 1...Sc2
- 2.Rc7#
- 1...Sc4
- 2.Rc7#
- 1...Sg4
- 2.Rxg4#
- 2.Rc7#
- 1...Sd5
- 2.Rc7#
- 1...Sf5
- 2.Rc7#
- 1...Kxd3!
- threat
- 1.Rc6+?
- 1...Kd4
- 2.Rd7#
- 1...Bc4
- 2.Rd7#
- 1...Bxc6
- 2.Rd7#
- 1...Sc4
- 2.Rg3#
- 2.Rd7#
- 1...Kxd3!
- 1...Kd4
- 1.Rd6?
- threat
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rgg6#
- 2.Ra7#
- 2.Rb7#
- 2.Rc7#
- 2.Rgd7#
- 2.Re7#
- 2.Rf7#
- 2.Rh7#
- 2.Rg8#
- 1...Bxd3
- 2.Rb7#
- 1...Sxd1
- 2.Rg2#
- 2.Rc7#
- 1...Sxf1
- 2.Rg2#
- 1...exd3
- 2.Rg4#
- 1...Bd7
- 2.Rg1#
- 2.Rg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rgg6#
- 2.Rgxd7#
- 2.Re7#
- 2.Rf7#
- 2.Rh7#
- 2.Rg8#
- 1...Sc2
- 2.Rc7#
- 1...Sg2
- 2.Rxg2#
- 2.Rg3#
- 2.Rg4#
- 2.Rg5#
- 2.Rgg6#
- 2.Ra7#
- 2.Rb7#
- 2.Rc7#
- 2.Rgd7#
- 2.Re7#
- 2.Rf7#
- 2.Rh7#
- 2.Rg8#
- 1...Sc4
- 2.Rc7#
- 1...Sg4
- 2.Rxg4#
- 2.Rc7#
- 1...Sf5
- 2.Rc7#
- 1...Sd5!
- threat
- 1.Rc7+?
- 1...Kd4
- 2.Rd6#
- 1...Bc4
- 2.Rd6#
- 1...Bc6
- 2.Rd6#
- 1...Sc4
- 2.Rf3#
- 2.Rd6#
- 1...Kxd3!
- 1...Kd4
- 1.Rd7?
- threat
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Ra6#
- 2.Rb6#
- 2.Rc6#
- 2.Rfd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 2.Rff7#
- 2.Rf8#
- 1...Bxd3
- 2.Rb6#
- 1...Bxd7
- 2.Rd6#
- 1...Sxd1
- 2.Rf2#
- 2.Rc6#
- 1...Sxf1
- 2.Rf2#
- 1...exd3
- 2.Rf4#
- 1...Sc2
- 2.Rc6#
- 1...Ba6
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rxa6#
- 2.Rb6#
- 2.Rc6#
- 2.Rfd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 2.Rff7#
- 2.Rf8#
- 1...Bc6
- 2.Rf2#
- 2.Rf3#
- 2.Rf4#
- 2.Rf5#
- 2.Rxc6#
- 2.Rfd6#
- 2.Re6#
- 2.Rg6#
- 2.Rh6#
- 2.Rff7#
- 2.Rf8#
- 1...Sc4
- 2.Rc6#
- 1...Sg4
- 2.Rc6#
- 1...Sf5
- 2.Rxf5#
- 2.Rc6#
- 1...Sd5!
- threat
- 1.Rf3?
- Keys
- 1.Rg3!
- threat
- 2.Rd6#
- 1...Kxd3
- 2.Rd6#
- 1...Kd4
- 2.Rd6#
- 1...Bxd3
- 2.Rb6#
- 1...Sxd1
- 2.Rf2#
- 2.Rc6#
- 1...Sxf1
- 2.Rf2#
- 1...exd3
- 2.Rf4#
- 1...Sc2
- 2.Rc6#
- 1...Sc4
- 2.Rc6#
- 1...Sg4
- 2.Rc6#
- 1...Sd5
- 2.Rc6#
- 1...Sf5
- 2.Rxf5#
- 2.Rc6#
- threat
- 1.Rg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- Tries
- Try
- R(F);
- Threat
- B(H)+R(G)
- Vars
- K(a);S_FLIGHT::B(H)+R(G),DCHECK
- B(d);SBLOCK,XS(E)::B(H)+R(G)
- S(b);XS(B)::B(H)+R(G)
- P(c);SBLOCK,XS(E)::B(H)+R(G)
- B(d);::B(H)+R(G),XB(d)
- S(b);::B(H)+R(G),DCHECK
- S(b);::B(H)+R(G)
- Refutation
- K(a);P-FLIGHT,P_SPINS(b),XS(E)
- Try
- R(F);CHECK
- Vars
- K(a);S_FLIGHT::B(H)+R(G),DCHECK
- B(d);P_PINP(D),P_SPINB(d)::B(H)+R(G)
- B(d);XR(F)::B(H)+R(G)
- Refutation
- K(a);P-FLIGHT,XS(E)
- Try
- R(F);
- Threat
- DUALS(14)
- Vars
- B(d);XS(E)::B(H)+R(G)
- S(b);XS(B)::B(H)+R(G)
- P(c);XS(E)::B(H)+R(G)
- S(b);::B(H)+R(G),DCHECK
- S(b);::B(H)+R(G)
- Refutation
- S(b);
- Try
- R(G);CHECK
- Vars
- K(a);S_FLIGHT::B(H)+R(F),DCHECK
- B(d);P_PINP(D),P_SPINB(d)::B(H)+R(F)
- B(d);P_SPINB(d)::B(H)+R(F)
- Refutation
- K(a);P-FLIGHT,XS(E)
- Try
- R(G);
- Threat
- DUALS(13)
- Vars
- B(d);XS(E)::B(H)+R(F)
- B(d);XR(G)::B(H)+R(F)
- S(b);XS(B)::B(H)+R(F)
- P(c);XS(E)::B(H)+R(F)
- S(b);::B(H)+R(F),DCHECK
- S(b);::B(H)+R(F)
- Refutation
- S(b);
- Try
- Actual
- R(G);
- Threat
- B(H)+R(F)
- Vars
- K(a);P-FLIGHT,P_SPINS(b),XS(E)::R(F)
- K(a);S_FLIGHT::B(H)+R(F),DCHECK
- B(d);SBLOCK,XS(E)::B(H)+R(F)
- S(b);XS(B)::B(H)+R(F)
- P(c);SBLOCK,XS(E)::B(H)+R(F)
- S(b);::B(H)+R(F),DCHECK
- S(b);::B(H)+R(F)
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