MESON Chess Problem Database
Problem Display
PID: 204935 (3R4/3N3n/3r1P2/1P1kNK2/1Ppb3p/3r1n1p/3R4/3B1b2 w - - 0 1)
Heddon, SR
Western Daily Mercury, 1920
(First published on Fri Dec 17 1920)
#2
9 + 10
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Rxd2
- 2.Bxf3#
- 1...Ra3
- 2.Sb6#
- 1...Rb3
- 2.Sb6#
- 1...Rc3
- 2.Sb6#
- 1...Re3
- 2.Sb6#
- 1...Ra6
- 2.Sb6#
- 1...Rb6
- 2.Sxb6#
- 1...Rc6
- 2.Sb6#
- 1...Re6
- 2.Sb6#
- 1...Rxf6+
- 2.Sxf6#
- 1...Rxd7
- 2.Rxd7#
- 1...Sxf6
- 2.Sxf6#
- 1...c3
- 2.Bb3#
- 1...Rxd2
- Tries
- 1.Sxd3?
- threat
- 2.Sf4#
- 2.Bxf3#
- 1...Rxf6+
- 2.Sxf6#
- 1...Rxd7
- 2.Rxd7#
- 1...Bxf6
- 2.Sf4#
- 1...Sxd2
- 2.Sf4#
- 1...Sxf6
- 2.Sf4#
- 1...cxd3
- 2.Bb3#
- 1...Ra6
- 2.Sb6#
- 1...Rb6
- 2.Sxb6#
- 1...Rc6
- 2.Sb6#
- 1...Re6
- 2.Sb6#
- 1...Ba1
- 2.Sf4#
- 1...Bg1
- 2.Sf4#
- 1...Bb2
- 2.Sf4#
- 1...Bf2
- 2.Sf4#
- 1...Bc3
- 2.Sf4#
- 1...Be3
- 2.Sf4#
- 1...Bc5
- 2.Sf4#
- 1...Be5
- 2.Sf4#
- 1...Bb6
- 2.Sf4#
- 1...Ba7
- 2.Sf4#
- 1...c3
- 2.Bb3#
- 1...Be2
- 2.Sf4#
- 1...Bg2
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...Sg1
- 2.Sf4#
- 1...Sh2
- 2.Sf4#
- 1...Se5
- 2.Sf4#
- 1...Sfg5
- 2.Sf4#
- 1...Shg5
- 2.Sf4#
- 1...Bxd3+!
- threat
- 1.Rxd3?
- threat
- 2.Sb6#
- 2.Bxf3#
- 1...Rxf6+
- 2.Sxf6#
- 1...Rxd7
- 2.Rxd7#
- 1...Sxe5
- 2.Sb6#
- 1...Sxf6
- 2.Sb6#
- 2.Sxf6#
- 1...cxd3
- 2.Bb3#
- 2.Bxf3#
- 1...Ra6
- 2.Sb6#
- 1...Rb6
- 2.Sxb6#
- 1...Rc6
- 2.Sb6#
- 1...Re6
- 2.Sb6#
- 1...Be2
- 2.Sb6#
- 1...Bg2
- 2.Sb6#
- 1...Se1
- 2.Sb6#
- 1...Sg1
- 2.Sb6#
- 1...Sd2
- 2.Sb6#
- 1...Sh2
- 2.Sb6#
- 1...Sfg5
- 2.Sb6#
- 1...Shg5
- 2.Sb6#
- 1...Bxd3+!
- threat
- 1.Sxd3?
- Keys
- 1.Sc6!
- threat
- 2.Se7#
- 1...Rxf6+
- 2.Sxf6#
- 1...Rxc6
- 2.Sb6#
- 1...Rxd7
- 2.Rxd7#
- 1...Bxf6
- 2.Sb6#
- 2.Bxf3#
- 1...Re6
- 2.Sb6#
- 1...c3
- 2.Bb3#
- 1...Re3
- 2.Sb6#
- 1...Ba1
- 2.Sb6#
- 2.Bxf3#
- 1...Bg1
- 2.Bxf3#
- 1...Bb2
- 2.Sb6#
- 2.Bxf3#
- 1...Bf2
- 2.Bxf3#
- 1...Bc3
- 2.Sb6#
- 2.Bxf3#
- 1...Be3
- 2.Bxf3#
- 1...Bc5
- 2.Bxf3#
- 1...Be5
- 2.Sb6#
- 2.Bxf3#
- 1...Bb6
- 2.Sxb6#
- 2.Bxf3#
- 1...Ba7
- 2.Bxf3#
- threat
- 1.Sc6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 7
- Sets
- R(b);N_GUARD,XR(B)::B(A),XS(c)
- R(b);P_SPINB(f)::S(H)
- R(i);::R(I)+S(H),DCHECK
- R(i);::R(I)+S(H),DCHECK,XR(i)
- R(i);CHECK,XP(G)::R(I)+S(H),DCHECK,XR(i)
- R(i);OGATE,P_SPINR(i),XS(H)::R(I),XR(i)
- S(j);XP(G)::S(H),XS(j)
- P(e);OGATEB::B(A)
- Tries
- Try
- S(E);XR(b)
- Threat
- DUALS(2)
- Vars
- R(i);CHECK,XP(G)::R(I)+S(H),DCHECK,XR(i)
- R(i);OGATE,P_SPINR(i),XS(H)::R(I),XR(i)
- B(f);XP(G)::R(B)+S(E),DCHECK
- S(c);XR(B)::S(E)
- S(j);XP(G)::S(E)
- P(e);OGATEB,XS(E)::B(A)
- R(i);::R(I)+S(H),DCHECK
- R(i);::R(I)+S(H),DCHECK,XR(i)
- B(f);::R(B)+S(E),DCHECK
- P(e);OGATEB::B(A)
- B(a);::S(E)
- S(c);::S(E)
- S(j);::S(E)
- Refutation
- B(a);CHECK,XS(E)
- Try
- R(B);P_PINB(f),XR(b)
- Threat
- DUALS(2)
- Vars
- R(i);CHECK,XP(G)::R(I)+S(H),DCHECK,XR(i)
- R(i);OGATE,P_SPINR(i),XS(H)::R(I),XR(i)
- S(c);XS(E)::S(H)
- R(i);::R(I)+S(H),DCHECK
- R(i);::R(I)+S(H),DCHECK,XR(i)
- B(a);::S(H)
- S(c);::S(H)
- S(j);::S(H)
- Refutation
- B(a);CHECK,N_SPINB(f),XR(B)
- Try
- Actual
- S(E);
- Threat
- S(E)
- Vars
- R(i);CHECK,XP(G)::R(I)+S(H),DCHECK,XR(i)
- R(i);XS(E)::R(I)+S(H),DCHECK
- R(i);OGATE,P_SPINR(i),XS(H)::R(I),XR(i)
- R(i);::R(I)+S(H),DCHECK
- P(e);OGATEB::B(A)
- R(b);P_SPINB(f)::S(H)
- B(f);P_SPINR(b)::B(A),XS(c)
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