MESON Chess Problem Database
Problem Display
PID: 289 (5bB1/4pNp1/1Rb3p1/2Bk2P1/4N3/K4Q2/5P2/8 w - - 0 1)
Stubbs, Arthur Goodwin
The Observer, 1920
(First published on Sun Mar 7 1920)
#2
9 + 6
| 887 | Mate in Two Moves | 1931 |
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kc4
- 2.Se5#
- 2.Sfd6#
- 2.Qb3#
- 1...Ba4
- 2.Qd3#
- 1...Bb7
- 2.Qd3#
- 1...Bd7
- 2.Qd3#
- 1...Ba8
- 2.Qd3#
- 1...Be8
- 2.Qd3#
- 1...e5
- 2.Sfd6#
- 2.Sh6#
- 2.Sd8#
- 2.Sh8#
- 1...e6
- 2.Qd3#
- 1...Kc4
- Tries
- 1.Kb4?
- 1...Bb5
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sf6#
- 1...Ba4
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sf6#
- 2.Qd3#
- 1...Bb7
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sf6#
- 2.Qd3#
- 1...Bd7
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sf6#
- 2.Qd3#
- 1...Ba8
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sf6#
- 2.Qd3#
- 1...Be8
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sf6#
- 2.Qd3#
- 1...e5
- 2.Sfd6#
- 2.Sh6#
- 2.Sd8#
- 2.Sh8#
- 1...e6
- 2.Sd2#
- 2.Sc3#
- 2.Sg3#
- 2.Sed6#
- 2.Sf6#
- 2.Qd3#
- 1...Ke6!
- 1...Bb5
- 1.Sfd6+?
- 1...Ke5
- 2.Sc4#
- 2.Qg3#
- 1...e6!
- 1...Ke5
- 1.Sh6+?
- 1...Ke5
- 2.Sg4#
- 1...e6!
- 1...Ke5
- 1.Sd8+?
- 1...Ke5
- 2.Sxc6#
- 1...e6!
- 1...Ke5
- 1.Sh8+?
- 1...Ke5
- 2.Sxg6#
- 1...e6!
- 1...Ke5
- 1.Rxc6?
- threat
- 2.Sd2#
- 1...Kc4
- 2.Sfd6#
- 2.Qb3#
- 1...e5
- 2.Sd8#
- 1...Kxc6!
- threat
- 1.Qe3?
- 1...Kc4
- 2.Se5#
- 2.Sfd6#
- 2.Qd4#
- 2.Qb3#
- 1...e6
- 2.Qd4#
- 2.Qd3#
- 1...Ba4
- 2.Qd4#
- 2.Qd3#
- 1...Bb5
- 2.Qd4#
- 1...Bb7
- 2.Qd4#
- 2.Qd3#
- 1...Bd7
- 2.Qd4#
- 2.Qd3#
- 1...Ba8
- 2.Qd4#
- 2.Qd3#
- 1...Be8
- 2.Qd4#
- 2.Qd3#
- 1...e5
- 2.Sfd6#
- 2.Sh6#
- 2.Sd8#
- 2.Sh8#
- 1...Ke6!
- 1...Kc4
- 1.Qh3?
- 1...Kc4
- 2.Se5#
- 2.Sfd6#
- 2.Qb3#
- 1...e6
- 2.Qd3#
- 1...Ba4
- 2.Qe6#
- 2.Qd3#
- 1...Bb5
- 2.Qe6#
- 1...Bb7
- 2.Qe6#
- 2.Qd3#
- 1...Bd7
- 2.Qd3#
- 1...Ba8
- 2.Qe6#
- 2.Qd3#
- 1...Be8
- 2.Qe6#
- 2.Qd3#
- 1...e5
- 2.Sfd6#
- 1...Kxe4!
- 1...Kc4
- 1.Qf5+?
- 1...Kc4
- 2.Se5#
- 1...e5
- 2.Sxe5#
- 2.Sfd6#
- 2.Sh6#
- 2.Sd8#
- 2.Sh8#
- 1...gxf5!
- 1...Kc4
- 1.Kb4?
- Keys
- 1.Be3!
- 1...e5+
- 2.Sfd6#
- 1...e6+
- 2.Sed6#
- 1...Kc4
- 2.Se5#
- 1...Ke6
- 2.Sc5#
- 1...Ba4
- 2.Sd2#
- 1...Bb5
- 2.Sd2#
- 1...Bb7
- 2.Sd2#
- 1...Bd7
- 2.Sd2#
- 1...Ba8
- 2.Sd2#
- 1...Be8
- 2.Sd2#
- 1...e5+
- 1.Be3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 6
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- B(b);::QAR2(C)
- P(d);P_PINB(E),SBLOCK::QAR2(C)
- Tries
- Try
- K(B);S_FLIGHT
- Refutation
- K(a);P_SPINB(b),S_FLIGHT
- Try
- S(H);CHECK
- Refutation
- P(d);P_SPINP(d)
- Try
- S(H);CHECK
- Vars
- K(a);P-FLIGHT::S(H)
- Refutation
- P(d);P_PINB(E),P_SPINP(d)
- Try
- S(H);CHECK
- Vars
- K(a);P-FLIGHT::S(H),XB(b)
- Refutation
- P(d);P_PINB(E),P_SPINP(d)
- Try
- S(H);CHECK
- Vars
- K(a);P-FLIGHT::S(H),XP(c)
- Refutation
- P(d);P_PINB(E),P_SPINP(d)
- Try
- R(G);XB(b)
- Threat
- QAB(C)+S(D)
- Vars
- P(d);N_GUARD,P_PINB(E),SBLOCK::B(I)+S(H)
- Refutation
- K(a);S_FLIGHT,XR(G)
- Try
- Q(C);
- Vars
- B(b);::QAR1(C)
- Refutation
- K(a);P_SPINB(b),S_FLIGHT
- Try
- Q(C);
- Vars
- P(d);P_PINB(E),SBLOCK::QAR2(C)
- B(b);::QAB1(C)
- B(b);::QAR2(C)
- P(d);N_GUARD,P_PINB(E),SBLOCK::B(I)+S(H)
- Refutation
- K(a);S_FLIGHT,XS(D)
- Try
- Q(C);CHECK
- Vars
- K(a);S_FLIGHT::B(I)+S(H),DCHECK
- Refutation
- P(c);XQ(C)
- Try
- Actual
- B(E);
- Vars
- P(d);CHECK,N_GUARD,SBLOCK::B(I)+S(H)
- P(d);CHECK,SBLOCK::QAB(C)+S(D)
- K(a);S_FLIGHT::B(I)+S(H),DCHECK
- K(a);P_SPINB(b),S_FLIGHT::S(D)
- B(b);::QAB(C)+S(D)
Developed and maintained by Brian Stephenson.
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CSS/Javascript (jQuery, Bootstrap & DataTables).