MESON Chess Problem Database
Problem Display
PID: 267680 (8/rBpN4/R2pp3/5n2/K1k5/B2R4/2r1P3/Q7 w - - 0 1)
Schofield, FT
The Referee, 1928
(First published on Sun Feb 12 1928)
#2
8 + 7
| 15239 | Valois Notebooks | 2022 |
SOLUTION
- SOUND
- Sets
- 1...Rc1
- 2.Qxc1#
- 2.Qa2#
- 1...Ra2
- 2.Qc3#
- 2.Qxa2#
- 1...Rd2
- 2.Qc3#
- 1...Rxe2
- 2.Qc3#
- 1...Rc3
- 2.Qxc3#
- 1...Rxa6+
- 2.Bxa6#
- 1...Rxb7
- 2.Rc6#
- 1...Se3
- 2.Rd4#
- 2.Qd4#
- 1...Sg3
- 2.Rd4#
- 2.Qd4#
- 1...Sd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Sh4
- 2.Rd4#
- 2.Qd4#
- 1...Sh6
- 2.Rd4#
- 2.Qd4#
- 1...Se7
- 2.Rd4#
- 2.Qd4#
- 1...Sg7
- 2.Rd4#
- 2.Qd4#
- 1...d5
- 2.Se5#
- 1...e5
- 2.Bd5#
- 1...c5
- 2.Sb6#
- 1...c6
- 2.Sb6#
- 1...Rc1
- Tries
- 1.Bxd6?
- threat
- 2.Se5#
- 1...Ra2+
- 2.Qxa2#
- 1...Rxa6+
- 2.Bxa6#
- 1...Rxe2
- 2.Qc3#
- 1...Sxd6
- 2.Rd4#
- 2.Qd4#
- 1...e5
- 2.Sxe5#
- 2.Bd5#
- 1...cxd6!
- threat
- 1.Rxa7?
- threat
- 2.Ba6#
- 1...Sd4
- 2.Rxd4#
- 2.Qxd4#
- 1...Rb2!
- threat
- 1.Qb2?
- threat
- 2.Qxc2#
- 2.Qb3#
- 2.Qb4#
- 2.Qb5#
- 1...Rxa6+
- 2.Bxa6#
- 1...Rxe2
- 2.Qc3#
- 2.Qb3#
- 2.Qb5#
- 1...Rxb7
- 2.Rc6#
- 2.Qxc2#
- 1...Rc1
- 2.Qxc1#
- 2.Qa2#
- 2.Qb3#
- 2.Qb4#
- 2.Qb5#
- 1...Rd2
- 2.Qc3#
- 2.Qb3#
- 2.Qb4#
- 2.Qb5#
- 1...Rc3
- 2.Qxc3#
- 2.Qb4#
- 2.Qb5#
- 1...Se3
- 2.Rd4#
- 2.Qd4#
- 2.Qb3#
- 2.Qb4#
- 2.Qb5#
- 1...Sd4
- 2.Rxd4#
- 2.Qxd4#
- 2.Qb4#
- 1...c5
- 2.Sb6#
- 2.Qxc2#
- 2.Qb3#
- 2.Qb5#
- 1...c6
- 2.Sb6#
- 2.Qxc2#
- 2.Qb3#
- 2.Qb4#
- 1...Rxb2!
- threat
- 1.Qb1?
- threat
- 2.Qxc2#
- 2.Qb3#
- 2.Qb4#
- 2.Qb5#
- 1...Rxa6+
- 2.Bxa6#
- 1...Rxe2
- 2.Qb3#
- 2.Qb5#
- 1...Rxb7
- 2.Rc6#
- 2.Qxc2#
- 1...Rc1
- 2.Qa2#
- 2.Qxc1#
- 2.Qb3#
- 2.Qb4#
- 2.Qb5#
- 1...Ra2
- 2.Qxa2#
- 2.Qb3#
- 2.Qb4#
- 2.Qb5#
- 1...Rd2
- 2.Qb3#
- 2.Qb4#
- 2.Qb5#
- 1...Rc3
- 2.Qb4#
- 2.Qb5#
- 1...Se3
- 2.Qb3#
- 2.Qb4#
- 2.Qb5#
- 1...Sd4
- 2.Qb4#
- 1...c5
- 2.Sb6#
- 2.Qxc2#
- 2.Qb3#
- 2.Qb5#
- 1...c6
- 2.Sb6#
- 2.Qxc2#
- 2.Qb3#
- 2.Qb4#
- 1...Rb2!
- threat
- 1.Qe1?
- threat
- 2.Qb4#
- 1...Rxa6+
- 2.Bxa6#
- 1...Rxe2
- 2.Qc3#
- 1...Rxb7
- 2.Rc6#
- 1...Rb2
- 2.Qc3#
- 1...Rc3
- 2.Qxc3#
- 1...c5
- 2.Sb6#
- 1...Rd2!
- threat
- 1.Bxd6?
- Keys
- 1.Qe5!
- threat
- 2.Qb5#
- 1...Rxa6+
- 2.Bxa6#
- 1...Rxb7
- 2.Rc6#
- 1...dxe5
- 2.Sxe5#
- 1...Rb2
- 2.Rc3#
- 2.Qc3#
- 1...Sd4
- 2.Qxd4#
- 1...d5
- 2.Qxc7#
- 1...c5
- 2.Sb6#
- 1...c6
- 2.Sb6#
- threat
- 1.Qe5!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 4
- Sets
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD,XP(B)::QAR1(A)
- R(a);N_GUARD::QAR1(A),XR(a)
- R(f);CHECK,OGATE,XR(F)::B(G),XR(f)
- R(f);N_PINR(F),XB(G)::R(F)
- P(d);N_GUARD::S(H)
- P(e);N_GUARD::B(G)
- P(g);N_GUARD::S(H)
- Tries
- Try
- B(C);XP(d)
- Threat
- S(H)
- Vars
- R(a);CHECK,N_GUARD::QAB(A),XR(a)
- R(f);CHECK,OGATE,XR(F)::B(G),XR(f)
- R(a);N_GUARD,XP(B)::QAR1(A)
- Refutation
- P(g);XB(C)
- Try
- R(F);N_SPINR(F),XR(f)
- Threat
- B(G)
- Refutation
- R(a);
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(f);CHECK,OGATE,XR(F)::B(G),XR(f)
- Refutation
- R(a);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(4)
- Vars
- R(f);CHECK,OGATE,XR(F)::B(G),XR(f)
- S(c);::QAR1(A)
- Refutation
- R(a);
- Try
- Q(A);
- Threat
- QAR1(A)
- Vars
- R(f);CHECK,OGATE,XR(F)::B(G),XR(f)
- R(a);N_GUARD,XP(B)::QAR1(A)
- R(f);N_PINR(F),XB(G)::R(F)
- R(a);N_GUARD::QAR1(A)
- R(a);N_GUARD::QAR1(A),XR(a)
- P(g);N_GUARD::S(H)
- Refutation
- R(a);
- Try
- Actual
- Q(A);
- Threat
- QAB1(A)
- Vars
- R(f);CHECK,OGATE,XR(F)::B(G),XR(f)
- R(f);N_PINR(F),XB(G)::R(F)
- P(d);XQ(A)::S(H),XP(d)
- S(c);N_GUARD::QAR1(A),XS(c)
- P(d);OGATE::QAR(A),XP(g)
- P(g);N_GUARD::S(H)
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