MESON Chess Problem Database
Problem Display
PID: 222657 (2n5/pR2p3/P3p3/2k3B1/2P4R/8/2N1K3/7Q w - - 0 1)
Bristow, Henry
English Mechanic and World of Science, 1884
(First published on Fri Jul 4 1884)
#2
8 + 5
| 6490 | yacpdb | 2020 |
| 15239 | Valois Notebooks | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sb6
- 2.Bxe7#
- 1...Sd6
- 2.Be3#
- 1...e5
- 2.Qd5#
- 1...Sb6
- Tries
- 1.Kd1?
- 1...Sb6
- 2.Bxe7#
- 1...Sd6
- 2.Be3#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sb6
- 1.Ke1?
- 1...Sb6
- 2.Bxe7#
- 1...Sd6
- 2.Be3#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sb6
- 1.Kf1?
- 1...Sb6
- 2.Bxe7#
- 1...Sd6
- 2.Be3#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sb6
- 1.Kd2?
- 1...Sb6
- 2.Bxe7#
- 1...Sd6
- 2.Be3#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sb6
- 1.Kf2?
- 1...Sb6
- 2.Bxe7#
- 1...Sd6
- 2.Be3#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sb6
- 1.Kd3?
- 1...Sb6
- 2.Bxe7#
- 1...Sd6
- 2.Be3#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sb6
- 1.Sa1?
- 1...Sb6
- 2.Bxe7#
- 1...Sd6
- 2.Sb3#
- 2.Be3#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sb6
- 1.Se1?
- 1...Sb6
- 2.Bxe7#
- 1...Sd6
- 2.Sd3#
- 2.Be3#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sb6
- 1.Sa3?
- 1...Sb6
- 2.Bxe7#
- 1...Sd6
- 2.Be3#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sb6
- 1.Sb4?
- threat
- 2.Qc6#
- 1...Sb6
- 2.Bxe7#
- 1...Kd6!
- threat
- 1.Bxe7+?
- 1...Sd6
- 2.Rb5#
- 1...Sxe7!
- 1...Sd6
- 1.Rd4?
- threat
- 2.Rb5#
- 1...Sb6
- 2.Bxe7#
- 2.Rc7#
- 1...Sd6!
- threat
- 1.Rg4?
- 1...Sd6
- 2.Be3#
- 1...Sb6
- 2.Bxe7#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sd6
- 1.Rb1?
- 1...Sd6
- 2.Be3#
- 1...Sb6
- 2.Bxe7#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sd6
- 1.Rb2?
- 1...Sd6
- 2.Be3#
- 1...Sb6
- 2.Bxe7#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sd6
- 1.Rb3?
- 1...Sd6
- 2.Be3#
- 1...Sb6
- 2.Bxe7#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sd6
- 1.Rb4?
- 1...Sd6
- 2.Be3#
- 1...Sb6
- 2.Bxe7#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sd6
- 1.Rb8?
- 1...Sd6
- 2.Be3#
- 1...Sb6
- 2.Bxe7#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sd6
- 1.Qg2?
- 1...Sd6
- 2.Be3#
- 1...Sb6
- 2.Bxe7#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sd6
- 1.Qf3?
- 1...Sd6
- 2.Be3#
- 1...Sb6
- 2.Bxe7#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sd6
- 1.Qe4?
- 1...Sd6
- 2.Be3#
- 1...Sb6
- 2.Bxe7#
- 1...e5
- 2.Qd5#
- 1...Kd6!
- 1...Sd6
- 1.Kd1?
- Keys
- 1.Bf4!
- 1...Kxc4
- 2.Qc6#
- 1...e5
- 2.Qd5#
- 1...Sd6
- 2.Be3#
- 1...Sb6
- 2.Rc7#
- 1...Kxc4
- 1.Bf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- S(e);N_GUARD::B(F),XP(d)
- S(e);SBLOCK::B(F)
- P(b);N_GUARD::QAR1(A)
- Tries
- Try
- K(C);S_FLIGHT
- Vars
- S(e);N_GUARD::B(F),XP(d)
- S(e);SBLOCK::B(F)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- K(C);P-FLIGHT
- Vars
- S(e);N_GUARD::B(F),XP(d)
- S(e);SBLOCK::B(F)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- K(C);S_FLIGHT
- Vars
- S(e);N_GUARD::B(F),XP(d)
- S(e);SBLOCK::B(F)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- K(C);P-FLIGHT
- Vars
- S(e);N_GUARD::B(F),XP(d)
- S(e);SBLOCK::B(F)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- K(C);P-FLIGHT
- Vars
- S(e);N_GUARD::B(F),XP(d)
- S(e);SBLOCK::B(F)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- K(C);S_FLIGHT
- Vars
- S(e);N_GUARD::B(F),XP(d)
- S(e);SBLOCK::B(F)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- S(B);
- Vars
- S(e);N_GUARD::B(F),XP(d)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- S(B);
- Vars
- S(e);N_GUARD::B(F),XP(d)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- S(B);
- Vars
- S(e);N_GUARD::B(F),XP(d)
- S(e);SBLOCK::B(F)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- S(B);
- Threat
- QAR1(A)
- Vars
- S(e);N_GUARD::B(F),XP(d)
- Refutation
- K(a);S_FLIGHT
- Try
- B(F);CHECK,XP(d)
- Vars
- S(e);P_SPINS(e)::R1(H)
- Refutation
- S(e);XB(F)
- Try
- R(E);
- Threat
- R1(H)
- Refutation
- S(e);
- Try
- R(E);
- Vars
- S(e);SBLOCK::B(F)
- S(e);N_GUARD::B(F),XP(d)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(H);
- Vars
- S(e);SBLOCK::B(F)
- S(e);N_GUARD::B(F),XP(d)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(H);
- Vars
- S(e);SBLOCK::B(F)
- S(e);N_GUARD::B(F),XP(d)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(H);
- Vars
- S(e);SBLOCK::B(F)
- S(e);N_GUARD::B(F),XP(d)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(H);
- Vars
- S(e);SBLOCK::B(F)
- S(e);N_GUARD::B(F),XP(d)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- R(H);
- Vars
- S(e);SBLOCK::B(F)
- S(e);N_GUARD::B(F),XP(d)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(A);
- Vars
- S(e);SBLOCK::B(F)
- S(e);N_GUARD::B(F),XP(d)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(A);
- Vars
- S(e);SBLOCK::B(F)
- S(e);N_GUARD::B(F),XP(d)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- Q(A);
- Vars
- S(e);SBLOCK::B(F)
- S(e);N_GUARD::B(F),XP(d)
- P(b);N_GUARD::QAR1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- Actual
- B(F);
- Vars
- K(a);P-FLIGHT,XP(D)::QAR2(A)
- P(b);N_GUARD::QAR1(A)
- S(e);SBLOCK::B(F)
- S(e);SBLOCK::R(H)
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