MESON Chess Problem Database
Problem Display
PID: 2500 (4n1br/7Q/4p3/8/K1kp1pNR/1Np5/B1prP3/8 w - - 0 1)
Loyd, Sam
Seaforth Expositor, 1868
#2
7 + 10
| 1679 | American Chess Nuts | 1868 |
| 119 | Tidskrift for Schack | 1909 |
| 5206 | Sam Loyd and His Chess Problems | 1913 |
| 3391 | Het Half Pin Thema | 1947 |
SOLUTION
- SOUND
- Sets
- 1...d3
- 2.Se3#
- 2.Qe4#
- 1...f3
- 2.Se3#
- 1...d3
- Tries
- 1.Rh5?
- threat
- 2.Sa1#
- 2.Sc1#
- 2.Sxd2#
- 2.Sa5#
- 2.Sc5#
- 2.Rc5#
- 1...Rxe2
- 2.Sa1#
- 2.Sc1#
- 2.Sd2#
- 2.Sa5#
- 2.Sc5#
- 2.Rc5#
- 1...c1Q
- 2.Sxd2#
- 2.Sa5#
- 2.Rc5#
- 1...c1S
- 2.Sxd2#
- 2.Sa5#
- 2.Rc5#
- 1...c1B
- 2.Sxd2#
- 2.Sa5#
- 2.Rc5#
- 1...c1R
- 2.Sxd2#
- 2.Sa5#
- 2.Rc5#
- 1...Rd1
- 2.Sa1#
- 2.Sc1#
- 2.Sd2#
- 2.Sa5#
- 2.Sc5#
- 2.Rc5#
- 1...Rd3
- 2.Sa1#
- 2.Sc1#
- 2.Sd2#
- 2.Sa5#
- 2.Sc5#
- 2.Rc5#
- 2.Qxd3#
- 2.exd3#
- 1...d3
- 2.Rc5#
- 2.Qe4#
- 1...e5!
- threat
- 1.Qe4?
- threat
- 2.Se5#
- 2.Qc6#
- 1...Rxe2
- 2.Se5#
- 2.Qxd4#
- 1...e5
- 2.Sxe5#
- 2.Qc6#
- 1...Rh5!
- threat
- 1.Qa7?
- threat
- 2.Sa1#
- 2.Sc1#
- 2.Sxd2#
- 2.Sxd4#
- 2.Sa5#
- 2.Sc5#
- 2.Qc5#
- 1...Rxe2
- 2.Sc1#
- 2.Sc5#
- 2.Qxd4#
- 1...c1Q
- 2.Sxd2#
- 2.Sa5#
- 2.Qc5#
- 1...c1S
- 2.Sxd2#
- 2.Sa5#
- 2.Qc5#
- 1...c1B
- 2.Sxd2#
- 2.Sa5#
- 2.Qc5#
- 1...c1R
- 2.Sxd2#
- 2.Sa5#
- 2.Qc5#
- 1...Rd1
- 2.Sa1#
- 2.Sc1#
- 2.Sd2#
- 2.Sxd4#
- 2.Sa5#
- 2.Sc5#
- 2.Qc5#
- 1...Rd3
- 2.Sa1#
- 2.Sc1#
- 2.Sd2#
- 2.Sxd4#
- 2.Sa5#
- 2.Sc5#
- 2.Qc5#
- 1...Rh5
- 2.Sa1#
- 2.Sc1#
- 2.Sxd2#
- 2.Sxd4#
- 2.Sa5#
- 2.Sc5#
- 1...d3
- 2.Sa1#
- 2.Sc1#
- 2.Sxd2#
- 2.Sd4#
- 2.Sa5#
- 2.Se3#
- 2.Qd4#
- 2.Qc5#
- 1...Kd5!
- threat
- 1.Qb7?
- threat
- 2.Se5#
- 2.Qc6#
- 2.Qb5#
- 1...Rxe2
- 2.Qb5#
- 1...Sd6
- 2.Se5#
- 2.Qc6#
- 1...Sc7
- 2.Se5#
- 2.Qc6#
- 1...e5
- 2.Sxe5#
- 2.Qc6#
- 2.Qb5#
- 1...Rh5!
- threat
- 1.Qc7+?
- 1...Kd5
- 2.Sxd2#
- 2.Sc5#
- 1...Sxc7!
- 1...Kd5
- 1.Qd7?
- threat
- 2.Se5#
- 2.Qb5#
- 2.Qc6#
- 1...Rxe2
- 2.Qb5#
- 2.Qxd4#
- 1...Sd6
- 2.Qc6#
- 1...Sc7
- 2.Se5#
- 2.Qc6#
- 1...e5
- 2.Sxe5#
- 2.Qb5#
- 2.Qc6#
- 1...Rh5!
- threat
- 1.Rh5?
- Keys
- 1.e4!
- threat
- 2.Se5#
- 1...Kd3
- 2.Sc1#
- 1...dxe4 ep
- 2.Sxe3#
- 1...fxe4 ep
- 2.Sxe3#
- 1...e5
- 2.Sxe5#
- threat
- 1.e4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- P(f);N_GUARD,S_CUTP(e)::S(E)
- Tries
- Try
- R(F);
- Threat
- DUALS(6)
- Refutation
- P(g);
- Try
- Q(G);P_PINP(e)
- Threat
- DUALS(2)
- Refutation
- R(j);
- Try
- Q(G);
- Threat
- DUALS(7)
- Refutation
- K(d);S_FLIGHT
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- R(b);XP(B)::QAB1(G)
- Refutation
- R(j);
- Try
- Q(G);CHECK
- Refutation
- S(h);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- S(h);::QAR2(G)
- Refutation
- R(j);
- Try
- Actual
- P(B);
- Threat
- S(E)
- Vars
- K(d);S_FLIGHT::S(C)
- P(e);EP,N_GUARD,S_CUTP(f),XP(B)::S(E),XP(e)
- P(f);EP,N_GUARD,S_CUTP(e),XP(B)::S(E),XP(f)
- P(g);::S(E),XP(g)
Developed and maintained by Brian Stephenson.
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