MESON Chess Problem Database
Problem Display
PID: 229637 (3Q4/1R6/4pP2/3nP3/2N3PK/2P2k1N/2P2p2/5B2 w - - 0 1)
Thomson, Robert Gavin
Sunday Chronicle, 1947
(First published on Fri Nov 14 1947)
#2
11 + 4
| 5454 | Near Snap | 2021 |
| 15239 | Valois Notebooks | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Ke4
- Tries
- 1.Rb1?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Rb2?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Rb3?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 2.Qa8#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Rb4?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sxb4!
- 1...Ke4
- 1.Rb5?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Rb6?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxb6
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Ra7?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Rc7?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Sxc7
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Re7?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Sxe7
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Rf7?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 2.Qa8#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Rg7?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Rh7?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Rb8?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Qb6?
- threat
- 2.Sd2#
- 1...Ke4
- 2.Bg2#
- 1...Sxb6!
- threat
- 1.Qd6?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Qd7?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Sxf6
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.f7?
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Qd3#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Qd3#
- 1...Sf6
- 2.Qd3#
- 1...Sc7
- 2.Qd3#
- 1...Se7
- 2.Qd3#
- 1...Sb4!
- 1...Ke4
- 1.Rb1?
- Keys
- 1.Qa8!
- 1...Ke4
- 2.Bg2#
- 1...Sxc3
- 2.Rb3#
- 1...Sxf6
- 2.Rf7#
- 1...Sb4
- 2.Rxb4#
- 1...Se3
- 2.Sd2#
- 1...Sf4
- 2.Sg5#
- 1...Sb6
- 2.Rxb6#
- 1...Sc7
- 2.Rxc7#
- 1...Se7
- 2.Rxe7#
- 1...Ke4
- 1.Qa8!
Anticipated by 4666(1886)
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 5
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- Tries
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);XR(J)
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XR(J)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);OGATE,XR(J)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);OGATE,XR(J)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- R(J);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- Q(K);
- Threat
- S(E)
- Vars
- K(b);S_FLIGHT::B(A)
- Refutation
- S(c);XQ(K)
- Try
- Q(K);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- Q(K);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);OGATE,XP(I)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- P(I);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATE,XP(C)::QAR2(K)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
- S(c);OGATE::QAR2(K)
- Refutation
- S(c);
- Try
- Actual
- Q(K);
- Vars
- K(b);S_FLIGHT::B(A)
- S(c);OGATEB,XP(C)::QAB(K)+R(J)
- S(c);OGATEB,XP(I)::QAB(K)+R(J)
- S(c);OGATEB::QAB(K)+R(J),XS(c)
- S(c);SBLOCK::S(E)
- S(c);SBLOCK::S(D)
Developed and maintained by Brian Stephenson.
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