MESON Chess Problem Database
Problem Display
PID: 2485 (8/6K1/1p1B1RB1/8/2Q5/2n1kP1N/3b4/4n3 w - - 0 1)
Loyd, Sam
New York Musical World, 1858
#2
7 + 5
| 1679 | American Chess Nuts | 1868 |
| 5206 | Sam Loyd and His Chess Problems | 1913 |
SOLUTION
- SOUND
- Sets
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Sc2
- Tries
- 1.Kh6?
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Kf7?
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Kh7?
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Kf8?
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Kg8?
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Kh8?
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Bh2?
- threat
- 2.Bg1#
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sd1
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Bc1!
- threat
- 1.Bg3?
- threat
- 2.Bf2#
- 1...Sd3
- 2.Qxd3#
- 1...Sd1
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Bc1!
- threat
- 1.Bb4?
- 1...Sxf3
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Be5?
- threat
- 2.Bd4#
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Se2
- 2.Qe4#
- 1...Sb5
- 2.Qe4#
- 1...Bc1!
- threat
- 1.Bc7?
- threat
- 2.Bxb6#
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bb6#
- 1...Bc1!
- threat
- 1.Be7?
- 1...Sxf3
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Bb8?
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Ba7#
- 1...Bc1!
- 1...Sxf3
- 1.Bf8?
- 1...Sxf3
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Bh7?
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Rf4?
- 1...Sxf3
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe6#
- 2.Qe4#
- 1...Sd1
- 2.Qe6#
- 2.Qe4#
- 1...Sa2
- 2.Qe6#
- 2.Qe4#
- 1...Se2
- 2.Qe6#
- 2.Qe4#
- 1...Sa4
- 2.Qe6#
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe6#
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Re6+?
- 1...Se4
- 2.Qxe4#
- 1...Kxf3!
- 1...Se4
- 1.Rf7?
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Rf8?
- 1...Sxf3
- 2.Bf4#
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Bc1!
- 1...Sxf3
- 1.Qe6+?
- 1...Se4
- 2.Qxe4#
- 1...Kd4!
- 1...Se4
- 1.Kh6?
- Keys
- 1.Ba3!
- 1...Sxf3
- 2.Qd3#
- 1...Bc1
- 2.Bxc1#
- 1...Sd3
- 2.Qxd3#
- 1...Sc2
- 2.Qd3#
- 1...Sg2
- 2.Qd3#
- 1...Sb1
- 2.Qe4#
- 1...Sd1
- 2.Qe4#
- 1...Sa2
- 2.Qe4#
- 1...Se2
- 2.Qe4#
- 1...Sa4
- 2.Qe4#
- 1...Se4
- 2.Qxe4#
- 1...Sb5
- 2.Qe4#
- 1...Sd5
- 2.Qe4#
- 1...b5
- 2.Bc5#
- 1...Sxf3
- 1.Ba3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Tries
- Try
- K(G);S_FLIGHT
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- K(G);P-FLIGHT
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- K(G);P-FLIGHT
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- K(G);S_FLIGHT
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- K(G);P-FLIGHT
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- K(G);S_FLIGHT
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- B(D);
- Threat
- B(D)
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- Refutation
- B(b);
- Try
- B(D);
- Threat
- B(D)
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- Refutation
- B(b);
- Try
- B(D);
- Vars
- S(a);N_GUARD,XP(A)::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- B(D);
- Threat
- B(D)
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- Refutation
- B(b);
- Try
- B(D);
- Threat
- B(D),XP(e)
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);::B(D)
- Refutation
- B(b);
- Try
- B(D);
- Vars
- S(a);N_GUARD,XP(A)::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- B(D);
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);OGATEB::B(D)
- Refutation
- B(b);
- Try
- B(D);
- Vars
- S(a);N_GUARD,XP(A)::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- B(F);
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- R(E);
- Vars
- S(a);N_GUARD,XP(A)::QAR1(C)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- S(c);N_GUARD::QAR1(C)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- R(E);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAR1(C),XS(c)
- Refutation
- K(d);P-FLIGHT,XP(A)
- Try
- R(E);
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- R(E);
- Vars
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
- Refutation
- B(b);
- Try
- Q(C);CHECK
- Vars
- S(c);N_GUARD,P_SPINS(c)::QAR1(C),XS(c)
- Refutation
- K(d);S_FLIGHT
- Try
- Actual
- B(D);
- Vars
- S(a);N_GUARD,XP(A)::QAR1(C)
- B(b);OGATEB::B(D),XB(b)
- S(a);N_GUARD::QAR1(C),XS(a)
- S(a);N_GUARD::QAR1(C)
- S(c);N_GUARD::QAR1(C)
- S(c);N_GUARD,SBLOCK::QAR1(C)
- S(c);N_GUARD::QAR1(C),XS(c)
- P(e);N_GUARD::B(D)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).