MESON Chess Problem Database
Problem Display
PID: 53215 (8/7P/8/8/B3Kn2/P1kP4/RpNpQpR1/7r w - - 0 1)
Albert, Bernard
1st Prize, Good Companions (January), 1915
#2
9 + 6
| 268 | Chess Life | 2004 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.h8Q#
- 2.h8B#
- 1...Rb1
- 2.h8Q#
- 2.h8B#
- 1...Rc1
- 2.h8Q#
- 2.h8B#
- 1...Rd1
- 2.h8Q#
- 2.h8B#
- 1...Re1
- 2.h8Q#
- 2.h8B#
- 1...Rf1
- 2.h8Q#
- 2.h8B#
- 1...Rg1
- 2.h8Q#
- 2.h8B#
- 1...Sxd3
- 2.Qxd3#
- 1...Sh3
- 2.h8Q#
- 2.h8B#
- 1...f1Q
- 2.Qxd2#
- 1...f1B
- 2.Qxd2#
- 1...f1R
- 2.Qxd2#
- 1...Ra1
- Tries
- 1.Sd4?
- threat
- 2.Sb5#
- 1...Sxd3
- 2.Qxd3#
- 1...b1Q
- 2.Qxd2#
- 1...b1R
- 2.Rc2#
- 2.Qxd2#
- 1...Rh5!
- threat
- 1.Qxf2?
- threat
- 2.Qd4#
- 2.Qc5#
- 2.Qxd2#
- 1...Sxg2
- 2.Qd4#
- 2.Qc5#
- 2.Qf6#
- 1...Sxd3
- 2.Qd4#
- 1...b1S
- 2.Qd4#
- 2.Qc5#
- 1...d1Q
- 2.Qd4#
- 2.Qc5#
- 1...d1S
- 2.Qd4#
- 2.Qc5#
- 2.Qd2#
- 1...d1B
- 2.Qd4#
- 2.Qc5#
- 2.Qd2#
- 1...d1R
- 2.Qd4#
- 2.Qc5#
- 1...Rh5
- 2.Qd4#
- 2.Qxd2#
- 1...Rd1
- 2.Qd4#
- 2.Qc5#
- 2.h8Q#
- 2.h8B#
- 1...Se2
- 2.Qc5#
- 1...Se6
- 2.Qxd2#
- 1...Re1+!
- threat
- 1.Sd4?
- Keys
- 1.Se3!
- 1...Rxh7
- 2.Sd1#
- 1...Sxe2
- 2.Sd5#
- 1...Sxg2
- 2.Sd5#
- 1...Sxd3
- 2.Qxd3#
- 1...b1Q
- 2.Qxd2#
- 1...b1S
- 2.Rc2#
- 1...b1B
- 2.Qxd2#
- 1...b1R
- 2.Rc2#
- 2.Qxd2#
- 1...d1Q
- 2.Qxb2#
- 1...d1S
- 2.Qc2#
- 1...d1B
- 2.Qxb2#
- 1...d1R
- 2.Qxb2#
- 2.Qc2#
- 1...f1Q
- 2.Qxd2#
- 1...f1S
- 2.Sd1#
- 1...f1B
- 2.Sd1#
- 2.Qxd2#
- 1...f1R
- 2.Qxd2#
- 1...Ra1
- 2.h8Q#
- 2.h8B#
- 1...Rb1
- 2.h8Q#
- 2.h8B#
- 1...Rc1
- 2.h8Q#
- 2.h8B#
- 1...Rd1
- 2.Sxd1#
- 2.h8Q#
- 2.h8B#
- 1...Re1
- 2.h8Q#
- 2.h8B#
- 1...Rf1
- 2.h8Q#
- 2.h8B#
- 1...Rg1
- 2.h8Q#
- 2.h8B#
- 1...Rh2
- 2.Sd1#
- 1...Rh3
- 2.Sd1#
- 1...Rh4
- 2.Sd1#
- 1...Rh5
- 2.Sd1#
- 1...Rh6
- 2.Sd1#
- 1...Sh3
- 2.Sd5#
- 2.h8Q#
- 2.h8B#
- 1...Sd5
- 2.Sxd5#
- 1...Sh5
- 2.Sd5#
- 1...Se6
- 2.Sd5#
- 1...Sg6
- 2.Sd5#
- 1...Rxh7
- 1.Se3!
This is a version of 21011
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 19
- REMOVED MATES = 1
- Sets
- R(a);N_GUARD::P=Q
- R(a);N_GUARD,P_PINQ(C)::P=Q
- S(f);OGATE,XP(F)::QAR1(C),XS(f)
- S(f);S_CUTR(a)::P=Q
- P(d);::QAB1(C),XP(c)
- Tries
- Try
- S(B);
- Threat
- S(B)
- Vars
- S(f);OGATE,XP(F)::QAR1(C),XS(f)
- P(b);P_PINP(F)::QAB1(C),XP(c)
- Refutation
- R(a);
- Try
- Q(C);XP(d)
- Threat
- DUALS(3)
- Vars
- S(f);XP(F)::QAB1(C)
- S(f);::QAR2(C)
- S(f);::QAB1(C),XP(c)
- Refutation
- R(a);CHECK
- Try
- Actual
- S(B);
- Vars
- R(a);N_GUARD,XP(I)::S(B)
- S(f);N_GUARD,XQ(C)::S(B)
- S(f);N_GUARD,XR(D)::S(B)
- S(f);OGATE,XP(F)::QAR1(C),XS(f)
- P(b);P_PINP(F)::QAB1(C),XP(c)
- P(b);OGATE::R1(A)
- P(c);OGATE::QAB1(C),XP(b)
- P(c);OGATE::QAR1(C)
- P(d);::QAB1(C),XP(c)
- P(d);S_CUTR(a)::S(B)
- R(a);N_GUARD::P=Q
- R(a);N_GUARD::S(B)
- S(f);N_GUARD::S(B),XS(f)
- S(f);N_GUARD::S(B)
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