MESON Chess Problem Database
Problem Display
PID: 270568 (5n2/B4P2/3R1P2/K3k1N1/1PPR4/Q5p1/1PB3p1/5rbn w - - 0 1)
Smith, James Alfred John
Sunday Referee, 1931
(First published on Sun Nov 29 1931)
#2
12 + 7
| 15239 | Valois Notebooks | 2023 |
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Sf3#
- 1...Rb1
- 2.Sf3#
- 1...Rc1
- 2.Sf3#
- 1...Rd1
- 2.Sf3#
- 1...Re1
- 2.Sf3#
- 1...Rf2
- 2.Qe3#
- 1...Rf3
- 2.Sxf3#
- 1...Rf4
- 2.R4d5#
- 1...Rxf6
- 2.R6d5#
- 1...Bf2
- 2.Sf3#
- 1...Bh2
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Sf2
- 2.Sf3#
- 2.Qxg3#
- 1...Se6
- 2.Rxe6#
- 1...Sg6
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Sh7
- 2.Re6#
- 1...Ra1
- Tries
- 1.Ka6?
- threat
- 2.Qa5#
- 1...Se6
- 2.Rxe6#
- 1...Ra1
- 2.Sf3#
- 1...Sd7
- 2.Re6#
- 1...Bxd4!
- threat
- 1.Bc5?
- 1...Rxf6
- 2.R6d5#
- 1...Se6
- 2.Rxe6#
- 1...Rf5
- 2.Re4#
- 1...Ra1
- 2.Sf3#
- 1...Rb1
- 2.Sf3#
- 1...Rc1
- 2.Sf3#
- 1...Rd1
- 2.Sf3#
- 1...Re1
- 2.Sf3#
- 1...Rf2
- 2.Qe3#
- 1...Rf3
- 2.Sxf3#
- 1...Rf4
- 2.R4d5#
- 1...Bf2
- 2.Sf3#
- 1...Bh2
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Sf2
- 2.Sf3#
- 2.Qxg3#
- 1...Sg6
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Sh7
- 2.Re6#
- 1...Bxd4!
- 1...Rxf6
- 1.Ra6?
- 1...Bxd4
- 2.Bb8#
- 1...Se6
- 2.Rxe6#
- 1...Rf5
- 2.Re4#
- 1...Ra1
- 2.Sf3#
- 1...Rb1
- 2.Sf3#
- 1...Rc1
- 2.Sf3#
- 1...Rd1
- 2.Sf3#
- 1...Re1
- 2.Sf3#
- 1...Rf2
- 2.Qe3#
- 1...Rf3
- 2.Sxf3#
- 1...Rf4
- 2.Rd5#
- 1...Bf2
- 2.Sf3#
- 1...Bh2
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Sf2
- 2.Sf3#
- 2.Qxg3#
- 1...Sg6
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Sh7
- 2.Re6#
- 1...Rxf6!
- 1...Bxd4
- 1.Rc6?
- 1...Bxd4
- 2.Bb8#
- 1...Se6
- 2.Rxe6#
- 1...Rf5
- 2.Re4#
- 1...Ra1
- 2.Sf3#
- 1...Rb1
- 2.Sf3#
- 1...Rc1
- 2.Sf3#
- 1...Rd1
- 2.Sf3#
- 1...Re1
- 2.Sf3#
- 1...Rf2
- 2.Qe3#
- 1...Rf3
- 2.Sxf3#
- 1...Rf4
- 2.Rd5#
- 1...Bf2
- 2.Sf3#
- 1...Bh2
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Sf2
- 2.Sf3#
- 2.Qxg3#
- 1...Sg6
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Sh7
- 2.Re6#
- 1...Rxf6!
- 1...Bxd4
- 1.Qd3?
- threat
- 2.Qe4#
- 1...Bxd4
- 2.Qxd4#
- 1...Se6
- 2.Rxe6#
- 1...Re1
- 2.Sf3#
- 2.Qf5#
- 1...Rf4
- 2.R4d5#
- 1...Sf2
- 2.Sf3#
- 2.Qf5#
- 2.Qxg3#
- 1...Ra1+!
- threat
- 1.Qf3?
- threat
- 2.R4d5#
- 2.R6d5#
- 2.Qe4#
- 2.Qd5#
- 1...Rxf3
- 2.Sxf3#
- 1...Bxd4
- 2.Rd5#
- 1...Rd1
- 2.R6d5#
- 2.Qe4#
- 2.Qd5#
- 2.Qf4#
- 2.Qf5#
- 1...Re1
- 2.R4d5#
- 2.R6d5#
- 2.Qd5#
- 2.Qf4#
- 2.Qf5#
- 1...Sf2
- 2.R4d5#
- 2.R6d5#
- 2.Qd5#
- 2.Qxg3#
- 2.Qf4#
- 2.Qf5#
- 1...Se6
- 2.R4d5#
- 2.R6d5#
- 2.Rxe6#
- 1...Ra1+!
- threat
- 1.Qxg3+?
- 1...Rf4
- 2.Sf3#
- 2.R4d5#
- 2.Qxf4#
- 1...Sxg3!
- 1...Rf4
- 1.Qa4?
- threat
- 2.Qb5#
- 1...Se6
- 2.Rxe6#
- 1...Ra1
- 2.Sf3#
- 1...Sd7
- 2.Re6#
- 1...Bxd4!
- threat
- 1.b5?
- threat
- 2.Qc5#
- 1...Se6
- 2.Rxe6#
- 1...Ra1
- 2.Sf3#
- 1...Sd7
- 2.Re6#
- 1...Bxd4!
- threat
- 1.Ka6?
- Keys
- 1.Rb6!
- 1...Kxd4
- 2.Qc3#
- 1...Rxf6
- 2.Rb5#
- 1...Bxd4
- 2.Bb8#
- 1...Se6
- 2.Rxe6#
- 1...Rf5
- 2.Re4#
- 1...Ra1
- 2.Sf3#
- 1...Rb1
- 2.Sf3#
- 1...Rc1
- 2.Sf3#
- 1...Rd1
- 2.Sf3#
- 1...Re1
- 2.Sf3#
- 1...Rf2
- 2.Qe3#
- 1...Rf3
- 2.Sxf3#
- 1...Rf4
- 2.Rd5#
- 1...Bf2
- 2.Sf3#
- 1...Bh2
- 2.Qe3#
- 1...Be3
- 2.Qxe3#
- 1...Sf2
- 2.Sf3#
- 1...Sg6
- 2.Re6#
- 1...Sd7
- 2.Re6#
- 1...Sh7
- 2.Re6#
- 1...Kxd4
- 1.Rb6!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 1
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- R(a);N_GUARD,P_PINQ(C)::S(H)
- R(a);N_GUARD::S(H)
- R(a);S_CUTB(b)::QAR2(C)
- R(a);N_GUARD::S(H),XR(a)
- R(a);SBLOCK::R1(F)
- R(a);SBLOCK,XP(J)::R1(I)
- B(b);S_CUTR(a)::S(H)
- B(b);N_GUARD::QAR2(C)
- B(b);N_GUARD::QAR2(C),XB(b)
- S(g);N_GUARD::R1(I),XS(g)
- S(g);N_GUARD::R1(I)
- Tries
- Try
- K(G);P-FLIGHT
- Threat
- QAR(C)
- Vars
- S(g);N_GUARD::R1(I),XS(g)
- R(a);N_GUARD,P_PINQ(C)::S(H)
- S(g);N_GUARD::R1(I)
- Refutation
- B(b);XR(F)
- Try
- B(K);
- Vars
- R(a);SBLOCK,XP(J)::R1(I)
- S(g);N_GUARD::R1(I),XS(g)
- R(a);SBLOCK::R1(F)
- R(a);N_GUARD,P_PINQ(C)::S(H)
- R(a);N_GUARD::S(H)
- R(a);S_CUTB(b)::QAR2(C)
- R(a);N_GUARD::S(H),XR(a)
- B(b);S_CUTR(a)::S(H)
- B(b);N_GUARD::QAR2(C)
- B(b);N_GUARD::QAR2(C),XB(b)
- S(g);N_GUARD::R1(I)
- Refutation
- B(b);XR(F)
- Try
- R(I);
- Vars
- B(b);SBLOCK,XR(F)::B(K)
- S(g);N_GUARD::R1(I),XS(g)
- R(a);SBLOCK::R1(F)
- R(a);N_GUARD,P_PINQ(C)::S(H)
- R(a);N_GUARD::S(H)
- R(a);S_CUTB(b)::QAR2(C)
- R(a);N_GUARD::S(H),XR(a)
- B(b);S_CUTR(a)::S(H)
- B(b);N_GUARD::QAR2(C)
- B(b);N_GUARD::QAR2(C),XB(b)
- S(g);N_GUARD::R1(I)
- Refutation
- R(a);XP(J)
- Try
- R(I);
- Vars
- B(b);SBLOCK,XR(F)::B(K)
- S(g);N_GUARD::R1(I),XS(g)
- R(a);SBLOCK::R1(F)
- R(a);N_GUARD,P_PINQ(C)::S(H)
- R(a);N_GUARD::S(H)
- R(a);S_CUTB(b)::QAR2(C)
- R(a);N_GUARD::S(H),XR(a)
- B(b);S_CUTR(a)::S(H)
- B(b);N_GUARD::QAR2(C)
- B(b);N_GUARD::QAR2(C),XB(b)
- S(g);N_GUARD::R1(I)
- Refutation
- R(a);XP(J)
- Try
- Q(C);
- Threat
- QAR1(C)
- Vars
- B(b);OGATE,XR(F)::QAB1(C),XB(b)
- S(g);N_GUARD::R1(I),XS(g)
- R(a);SBLOCK::R1(F)
- Refutation
- R(a);CHECK
- Try
- Q(C);
- Threat
- DUALS(4)
- Vars
- R(a);XQ(C)::S(H),XR(a)
- B(b);XR(F)::R1(I)
- Refutation
- R(a);CHECK
- Try
- Q(C);CHECK,XP(e)
- Refutation
- S(c);XQ(C)
- Try
- Q(C);
- Threat
- QAR(C)
- Vars
- S(g);N_GUARD::R1(I),XS(g)
- R(a);N_GUARD,P_PINQ(C)::S(H)
- S(g);N_GUARD::R1(I)
- Refutation
- B(b);XR(F)
- Try
- P(D);
- Threat
- QAR2(C)
- Vars
- S(g);N_GUARD::R1(I),XS(g)
- R(a);N_GUARD,P_PINQ(C)::S(H)
- S(g);N_GUARD::R1(I)
- Refutation
- B(b);XR(F)
- Try
- Actual
- R(I);
- Vars
- K(f);OGATEB,S_FLIGHT,XR(F)::QAB1(C)
- R(a);SBLOCK,XP(J)::R(I)
- B(b);SBLOCK,XR(F)::B(K)
- S(g);N_GUARD::R1(I),XS(g)
- R(a);SBLOCK::R1(F)
- R(a);N_GUARD,P_PINQ(C)::S(H)
- R(a);N_GUARD::S(H)
- R(a);S_CUTB(b)::QAR2(C)
- R(a);N_GUARD::S(H),XR(a)
- B(b);S_CUTR(a)::S(H)
- B(b);N_GUARD::QAR2(C)
- B(b);N_GUARD::QAR2(C),XB(b)
- S(c);S_CUTR(a)::S(H)
- S(g);N_GUARD::R1(I)
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