Meson Chess Problem Database

Caine, Walter Edmund

Sunday Referee, 1932

(First published on Sun Dec 25 1932)

7 + 7

15239	Valois Notebooks	2023

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 5
- REMOVED MATES = 1
Sets
- B(d);N_GUARD,P_SPINS(a)::S(G),XP(g)
- S(a);P_SPINB(d)::S(G),XP(g)
- S(a);OGATE,P_SPINB(d)::R1(B),XB(d)
- P(f);S_CUTB(d)::S(G),XP(g)
Tries
- Try
  - R(B);P_PINB(d),XS(a)
  - Threat
    - DUALS(2)
  - Vars
    - P(f);::S(G),XP(g)
  - Refutation
    - P(b);N_SPINB(d),XR(B)
- Try
  - Q(A);P_PINB(d)
  - Threat
    - DUALS(2)
  - Vars
    - S(a);::S(G),XP(g)
    - S(a);::QAR1(A),XB(d)
    - P(f);::S(G),XP(g)
  - Refutation
    - P(c);N_SPINB(d),XQ(A)
- Try
  - Q(A);CHECK
  - Vars
    - S(a);OGATE,P_SPINB(d),XQ(A)::R1(B),XB(d)
  - Refutation
    - K(e);S_FLIGHT,XQ(A)
- Try
  - Q(A);CHECK
  - Vars
    - B(d);P_SPINB(d),P_SPINS(a)::S(G),XP(g)
    - P(f);P_SPINP(f)::S(G),XP(g)
  - Refutation
    - P(f);XQ(A)
Actual
- Q(A);
- Threat
  - QAR1(A),XB(d)
- Vars
  - K(e);S_FLIGHT::QAR1(A),XB(d)
  - B(d);N_GUARD,P_SPINS(a),XQ(A)::S(G),XP(g)
  - B(d);N_GUARD,P_SPINS(a),XB(E)::S(G),XP(g)
  - B(d);N_GUARD,P_SPINS(a)::S(G),XP(g)
  - B(d);P_SPINS(a),S_CUTP(f)::QAB(A)
  - S(a);P_SPINB(d)::S(G),XP(g)
  - P(f);S_CUTB(d)::S(G),XP(g)

MESON Chess Problem Database