MESON Chess Problem Database
Problem Display
PID: 200937 (8/1N6/3p4/1N2n3/k1P5/2B5/n1K5/rRbB4 w - - 0 1)
Holladay, Edgar Dinwiddie
The Observer, 1949
(First published on Sun Mar 6 1949)
#2
7 + 6
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxb1
- 2.Kxb1#
- 1...Bb2
- 2.Kxb2#
- 2.Kd2#
- 1...Bd2
- 2.Kb2#
- 2.Kxd2#
- 1...Ba3
- 2.Kd2#
- 1...Be3
- 2.Kb2#
- 1...Bf4
- 2.Kb2#
- 1...Bg5
- 2.Kb2#
- 1...Bh6
- 2.Kb2#
- 1...Sxc3
- 2.Kxc3#
- 1...Sb4+
- 2.Rxb4#
- 1...Sd3
- 2.Kxd3#
- 1...Sf3
- 2.Kd3#
- 1...Sxc4
- 2.Kd3#
- 1...Sg4
- 2.Kd3#
- 1...Sc6
- 2.Kd3#
- 1...Sg6
- 2.Kd3#
- 1...Sd7
- 2.Kd3#
- 1...Sf7
- 2.Kd3#
- 1...d5
- 2.Sc5#
- 1...Rxb1
- Tries
- 1.Bd2?
- 1...Sb4+
- 2.Rxb4#
- 1...Rxb1
- 2.Kxb1#
- 1...Bxd2
- 2.Kxd2#
- 1...Sxc4
- 2.Kd3#
- 1...Bb2
- 2.Kxb2#
- 1...Sc3
- 2.Kxc3#
- 1...Sd3
- 2.Kxd3#
- 1...Sf3
- 2.Kd3#
- 1...Sg4
- 2.Kd3#
- 1...Sc6
- 2.Kd3#
- 1...Sg6
- 2.Kd3#
- 1...Sd7
- 2.Kd3#
- 1...Sf7
- 2.Kd3#
- 1...d5
- 2.Sc5#
- 1...Ba3!
- 1...Sb4+
- 1.Ba5?
- 1...Sb4+
- 2.Rxb4#
- 1...Rxb1
- 2.Kxb1#
- 1...Sxc4
- 2.Kd3#
- 1...Bb2
- 2.Kxb2#
- 2.Kd2#
- 1...Bd2
- 2.Kb2#
- 2.Kxd2#
- 1...Ba3
- 2.Kd2#
- 1...Be3
- 2.Kb2#
- 1...Bf4
- 2.Kb2#
- 1...Bg5
- 2.Kb2#
- 1...Bh6
- 2.Kb2#
- 1...Sc3
- 2.Kxc3#
- 2.Rb4#
- 1...Sd3
- 2.Kxd3#
- 1...Sf3
- 2.Kd3#
- 1...Sg4
- 2.Kd3#
- 1...Sc6
- 2.Kd3#
- 1...Sg6
- 2.Kd3#
- 1...Sd7
- 2.Kd3#
- 1...Sf7
- 2.Kd3#
- 1...d5!
- 1...Sb4+
- 1.Bd2?
- Keys
- 1.Be1!
- 1...Sb4+
- 2.Rxb4#
- 1...Rxb1
- 2.Kxb1#
- 1...Sxc4
- 2.Kd3#
- 1...Bb2
- 2.Kxb2#
- 1...Bd2
- 2.Kxd2#
- 1...Ba3
- 2.Kd2#
- 1...Be3
- 2.Kb2#
- 1...Bf4
- 2.Kb2#
- 1...Bg5
- 2.Kb2#
- 1...Bh6
- 2.Kb2#
- 1...Sc3
- 2.Kxc3#
- 1...Sd3
- 2.Kxd3#
- 1...Sf3
- 2.Kd3#
- 1...Sg4
- 2.Kd3#
- 1...Sc6
- 2.Kd3#
- 1...Sg6
- 2.Kd3#
- 1...Sd7
- 2.Kd3#
- 1...Sf7
- 2.Kd3#
- 1...d5
- 2.Sc5#
- 1...Sb4+
- 1.Be1!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(a);XR(A)::B(B)+K(C),XR(a)
- B(b);::B(B)+K(C)
- S(c);XB(D)::B(B)+K(C),XS(c)
- S(c);CHECK,N_GUARD::R1(A),XS(c)
- S(e);::B(B)+K(C),XS(e)
- S(e);::B(B)+K(C)
- S(e);XP(E)::B(B)+K(C)
- P(f);N_GUARD::S(G)
- Tries
- Try
- B(D);
- Vars
- S(c);CHECK,N_GUARD::R1(A),XS(c)
- R(a);XR(A)::B(B)+K(C),XR(a)
- B(b);XB(D)::B(B)+K(C),XB(b)
- S(e);XP(E)::B(B)+K(C)
- B(b);::B(B)+K(C),XB(b)
- S(c);::B(B)+K(C),XS(c)
- S(e);::B(B)+K(C),XS(e)
- S(e);::B(B)+K(C)
- P(f);N_GUARD::S(G)
- Refutation
- B(b);
- Try
- B(D);
- Vars
- S(c);CHECK,N_GUARD::R1(A),XS(c)
- R(a);XR(A)::B(B)+K(C),XR(a)
- S(e);XP(E)::B(B)+K(C)
- B(b);::B(B)+K(C)
- S(e);::B(B)+K(C),XS(e)
- S(e);::B(B)+K(C)
- Refutation
- P(f);
- Try
- Actual
- B(D);
- Vars
- S(c);CHECK,N_GUARD::R1(A),XS(c)
- R(a);XR(A)::B(B)+K(C),XR(a)
- S(e);XP(E)::B(B)+K(C)
- B(b);::B(B)+K(C),XB(b)
- B(b);::B(B)+K(C)
- S(c);::B(B)+K(C),XS(c)
- S(e);::B(B)+K(C),XS(e)
- S(e);::B(B)+K(C)
- P(f);N_GUARD::S(G)
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