MESON Chess Problem Database
Problem Display
PID: 153899 (2r1R3/b2Rp3/4pB2/nN5p/1P2k2K/1P1p3Q/1n3pN1/q7 w - - 0 1)
Alexander, Frederick Forrest Lawrie
Falkirk Herald, 1940
(First published on Wed Mar 20 1940)
#2
9 + 11
| 15373 | FFLA Scrapbook | 2015 |
SOLUTION
- SOUND
- Sets
- 1...Rc3
- 2.Sxc3#
- 1...Rc5
- 2.Rd4#
- 1...Ra8
- 2.Sc3#
- 1...Rb8
- 2.Sc3#
- 1...Rd8
- 2.Sc3#
- 1...Rxe8
- 2.Sc3#
- 1...Bd4
- 2.Rxd4#
- 1...Bc5
- 2.Sc3#
- 1...Bb8
- 2.Rd4#
- 1...Sd1
- 2.Qxd3#
- 1...Sa4
- 2.Qxd3#
- 1...Sbc4
- 2.Qxd3#
- 1...Sac4
- 2.Sc3#
- 1...Sc6
- 2.Sc3#
- 1...exf6
- 2.Rxe6#
- 1...Rc3
- Tries
- 1.Sd4?
- threat
- 2.Qxe6#
- 2.Qe3#
- 2.Qf3#
- 1...Bxd4
- 2.Rxd4#
- 1...exf6
- 2.Rxe6#
- 2.Qf5#
- 2.Qxe6#
- 2.Qe3#
- 1...f1Q
- 2.Qxe6#
- 2.Qe3#
- 1...f1S
- 2.Qxe6#
- 2.Qf3#
- 1...f1R
- 2.Qxe6#
- 2.Qe3#
- 1...Qc1
- 2.Qxe6#
- 2.Qf3#
- 1...Qd1
- 2.Qxe6#
- 2.Qe3#
- 1...Qe1
- 2.Qxe6#
- 2.Qf3#
- 1...Rc5
- 2.Qe3#
- 2.Qf3#
- 1...Rc6
- 2.Qe3#
- 2.Qf3#
- 1...Bb8
- 2.Qe3#
- 2.Qf3#
- 1...Sd1
- 2.Qxe6#
- 2.Qf3#
- 1...Sbc4
- 2.Qf3#
- 1...Sac4
- 2.Qf3#
- 1...Sc6
- 2.Qe3#
- 2.Qf3#
- 1...d2
- 2.Qe3#
- 2.Qf3#
- 1...e5
- 2.Qf5#
- 2.Qe3#
- 2.Qf3#
- 1...Qh1!
- threat
- 1.Sd6+?
- 1...Kd5
- 2.Qf3#
- 1...exd6!
- 1...Kd5
- 1.Rexe7?
- threat
- 2.Rxe6#
- 1...Rc5
- 2.Rd4#
- 1...Re8
- 2.Sc3#
- 1...Bd4
- 2.Rxd4#
- 1...Bb8
- 2.Rd4#
- 1...Sd1
- 2.Qxd3#
- 1...Sa4
- 2.Qxd3#
- 1...Sbc4
- 2.Qxd3#
- 1...Sac4
- 2.Sc3#
- 1...Sc6
- 2.Sc3#
- 1...e5
- 2.Rxe5#
- 1...Rc6!
- threat
- 1.Sd4?
- Keys
- 1.Rd5!
- threat
- 2.Re5#
- 1...Kxd5
- 2.Qf3#
- 1...exd5
- 2.Sd6#
- 2.Rxe7#
- 1...exf6
- 2.Qf5#
- 1...Rc5
- 2.Rd4#
- 1...Bd4
- 2.Rxd4#
- 1...Bb8
- 2.Rd4#
- 1...Sd1
- 2.Qxd3#
- 1...Sa4
- 2.Qxd3#
- 1...Sbc4
- 2.Qxd3#
- 1...Sac4
- 2.Sc3#
- 1...Sc6
- 2.Sc3#
- 1...e5
- 2.Rxe5#
- threat
- 1.Rd5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 6
- Sets
- R(k);N_GUARD::S(F),XR(k)
- R(k);S_CUTB(i)::R1(H)
- R(k);N_GUARD::S(F)
- R(k);N_GUARD,XR(I)::S(F)
- B(i);N_GUARD::R1(H),XB(i)
- B(i);S_CUTR(k)::S(F)
- B(i);N_GUARD::R1(H)
- S(b);N_GUARD::QAB1(C),XP(d)
- S(f);S_CUTR(k)::S(F)
- P(j);OGATE,P_SPINP(h),XB(G)::R(I),XP(h)
- Tries
- Try
- S(F);
- Threat
- DUALS(3)
- Vars
- B(i);OGATE,XS(F)::R1(H),XB(i)
- S(b);::QAB1(C)
- S(f);::QAB1(C)
- Refutation
- Q(a);P_PINQ(C)
- Try
- S(F);CHECK
- Vars
- K(e);S_FLIGHT::QAB(C)
- Refutation
- P(j);P_SPINP(h),XS(F)
- Try
- R(I);P_PINP(h),XP(j)
- Threat
- R(I),XP(h)
- Vars
- R(k);S_CUTB(i)::R1(H)
- R(k);N_GUARD::S(F)
- B(i);N_GUARD::R1(H),XB(i)
- B(i);N_GUARD::R1(H)
- S(b);N_GUARD::QAB1(C),XP(d)
- S(f);S_CUTR(k)::S(F)
- P(h);OGATE::R1(I),XP(h)
- Refutation
- R(k);
- Try
- Actual
- R(H);
- Threat
- R1(H)
- Vars
- K(e);S_FLIGHT,XR(H)::QAB(C)
- P(j);P_SPINP(h),XB(G)::QAB1(C)
- R(k);S_CUTB(i)::R1(H)
- B(i);N_GUARD::R1(H),XB(i)
- B(i);N_GUARD::R1(H)
- S(b);N_GUARD::QAB1(C),XP(d)
- S(f);S_CUTR(k)::S(F)
- P(h);::R1(H),XP(h)
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