MESON Chess Problem Database
Problem Display
PID: 381 (n7/1KppQ2N/B7/3kB3/1P2p3/5rNb/3b4/3R1n2 w - - 0 1)
Gooderson, Arthur R
The Observer, 1938
(First published on Sun Jul 10 1938)
#2
8 + 9
| 3207 | A R Gooderson An English Progressive | 1996 |
| 15239 | Valois Notebooks | 2019 |
SOLUTION
- SOUND
- Sets
- 1...Ra3
- 2.Sf6#
- 1...Rb3
- 2.Sf6#
- 1...Rc3
- 2.Sf6#
- 1...Rd3
- 2.Sf6#
- 1...Re3
- 2.Sf6#
- 1...Rxg3
- 2.Sf6#
- 1...Rf6
- 2.Sxf6#
- 1...Bf5
- 2.Sf6#
- 1...Be6
- 2.Qc5#
- 1...Se3
- 2.Rxd2#
- 1...c5
- 2.Qd6#
- 1...c6
- 2.Qd6#
- 1...Ra3
- Tries
- 1.Ba1?
- threat
- 2.Qe5#
- 1...Rf5
- 2.Qxd7#
- 1...Be6
- 2.Qc5#
- 1...d6
- 2.Qxe4#
- 1...Rc3!
- threat
- 1.Bb2?
- threat
- 2.Qe5#
- 1...Rf5
- 2.Qxd7#
- 1...Be6
- 2.Qc5#
- 1...d6
- 2.Qxe4#
- 1...Rc3!
- threat
- 1.Bc3?
- threat
- 2.Qe5#
- 1...Rf5
- 2.Qxd7#
- 1...Be6
- 2.Qc5#
- 1...d6
- 2.Qxe4#
- 1...Rxc3!
- threat
- 1.Bf4?
- threat
- 2.Qxe4#
- 2.Qe5#
- 1...Kd4
- 2.Qc5#
- 2.Qe5#
- 1...Rxg3
- 2.Qe5#
- 1...Sxg3
- 2.Qe5#
- 1...Re3
- 2.Qe5#
- 1...Bf5
- 2.Qe5#
- 1...Be6
- 2.Qc5#
- 1...e3
- 2.Qe4#
- 2.Qe5#
- 1...d6
- 2.Qxe4#
- 1...Rxf4!
- threat
- 1.Bf6?
- threat
- 2.Qe5#
- 1...Rf5
- 2.Qxd7#
- 1...Be6
- 2.Qc5#
- 1...d6
- 2.Qxe4#
- 1...Rxf6!
- threat
- 1.Bxc7?
- threat
- 2.Qd6#
- 2.Qxe4#
- 2.Qe5#
- 1...Kd4
- 2.Qc5#
- 1...Rxg3
- 2.Qd6#
- 2.Qe5#
- 1...Sxg3
- 2.Qd6#
- 2.Qe5#
- 1...Re3
- 2.Qd6#
- 2.Qe5#
- 1...Rf4
- 2.Qd6#
- 2.Qe5#
- 1...Rf5
- 2.Qd6#
- 2.Qxe4#
- 2.Qxd7#
- 1...Rf6
- 2.Qxe4#
- 2.Qe5#
- 1...Bf5
- 2.Qd6#
- 2.Qe5#
- 1...Be6
- 2.Qc5#
- 2.Qd6#
- 1...e3
- 2.Qd6#
- 2.Qe4#
- 2.Qe5#
- 1...d6
- 2.Qxd6#
- 2.Qxe4#
- 1...Sxc7!
- threat
- 1.Bg7?
- threat
- 2.Qe5#
- 1...Rf5
- 2.Qxd7#
- 1...Be6
- 2.Qc5#
- 1...d6
- 2.Qxe4#
- 1...Rf6!
- threat
- 1.Bh8?
- threat
- 2.Qe5#
- 1...Rf5
- 2.Qxd7#
- 1...Be6
- 2.Qc5#
- 1...d6
- 2.Qxe4#
- 1...Rf6!
- threat
- 1.Rxd2+?
- 1...Rd3
- 2.Sf6#
- 1...Sxd2!
- 1...Rd3
- 1.Ba1?
- Keys
- 1.Bd4!
- threat
- 2.Qe5#
- 1...Kxd4
- 2.Qc5#
- 1...Rf5
- 2.Qxd7#
- 1...Bf4
- 2.Sf6#
- 1...Be6
- 2.Qc5#
- 1...d6
- 2.Qxe4#
- threat
- 1.Bd4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 11
- Sets
- R(c);N_GUARD::S(H)
- R(c);N_GUARD,P_PINP(C)::S(H)
- R(c);N_GUARD,N_SPINB(b)::S(H)
- R(c);N_GUARD,XS(B)::S(H)
- R(c);N_GUARD::S(H),XR(c)
- B(d);S_CUTR(c)::S(H)
- B(d);SBLOCK::QAR1(G)
- S(a);N_GUARD,S_CUTR(c)::R(A),XB(b)
- P(g);N_GUARD::QAR1(G)
- Tries
- Try
- B(D);
- Threat
- QAR1(G)
- Vars
- R(c);S_CUTB(d)::QAR2(G),XP(h)
- B(d);SBLOCK::QAR1(G)
- P(h);SBLOCK::QAB1(G),XP(e)
- Refutation
- R(c);
- Try
- B(D);
- Threat
- QAR1(G)
- Vars
- R(c);S_CUTB(d)::QAR2(G),XP(h)
- B(d);SBLOCK::QAR1(G)
- P(h);SBLOCK::QAB1(G),XP(e)
- Refutation
- R(c);
- Try
- B(D);
- Threat
- QAR1(G)
- Vars
- R(c);S_CUTB(d)::QAR2(G),XP(h)
- B(d);SBLOCK::QAR1(G)
- P(h);SBLOCK::QAB1(G),XP(e)
- Refutation
- R(c);XB(D)
- Try
- B(D);
- Threat
- DUALS(2)
- Vars
- R(c);XS(B)::QAR1(G)
- S(a);XS(B)::QAR1(G)
- R(c);::QAR1(G)
- B(d);::QAR1(G)
- B(d);SBLOCK::QAR1(G)
- P(h);::QAB1(G),XP(e)
- Refutation
- R(c);XB(D)
- Try
- B(D);
- Threat
- QAR1(G)
- Vars
- R(c);S_CUTB(d)::QAR2(G),XP(h)
- B(d);SBLOCK::QAR1(G)
- P(h);SBLOCK::QAB1(G),XP(e)
- Refutation
- R(c);XB(D)
- Try
- B(D);XP(g)
- Threat
- DUALS(3)
- Vars
- K(f);P-FLIGHT::QAB1(G)
- Refutation
- S(i);XB(D)
- Try
- B(D);
- Threat
- QAR1(G)
- Vars
- R(c);S_CUTB(d)::QAR2(G),XP(h)
- B(d);SBLOCK::QAR1(G)
- P(h);SBLOCK::QAB1(G),XP(e)
- Refutation
- R(c);
- Try
- B(D);
- Threat
- QAR1(G)
- Vars
- R(c);S_CUTB(d)::QAR2(G),XP(h)
- B(d);SBLOCK::QAR1(G)
- P(h);SBLOCK::QAB1(G),XP(e)
- Refutation
- R(c);
- Try
- R(A);CHECK,XB(b)
- Vars
- R(c);P_SPINR(c)::S(H)
- Refutation
- S(a);XR(A)
- Try
- Actual
- B(D);N_PINB(b)
- Threat
- QAR1(G)
- Vars
- K(f);P-FLIGHT,P_SPINB(b),XB(D)::QAB1(G)
- R(c);S_CUTB(d)::QAR2(G),XP(h)
- B(b);S_CUTR(c)::S(H)
- B(d);SBLOCK::QAR1(G)
- P(h);SBLOCK::QAB1(G),XP(e)
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