Meson Chess Problem Database

Blake, Percy Francis

1st Prize, Bolton Football and Field, 1904

9 + 10

15	British Chess Magazine	1911
3360	Simple Two-move Themes	1924

Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 3
- REMOVED MATES = 2
Sets
- B(c);SBLOCK::B(B)
- S(b);SBLOCK::B(B)
- S(d);::QAR1(H)
Tries
- Try
  - R(F);XS(d)
  - Threat
    - DUALS(2)
  - Vars
    - P(i);XR(G)::QAR1(H)
    - P(i);::QAR1(H)
    - S(b);::B(B)
  - Refutation
    - P(e);XR(F)
- Try
  - R(F);CHECK,XP(e)
  - Vars
    - K(f);S_FLIGHT::B(B)
    - S(d);N_GUARD,P_SPINS(d)::R1(F),XS(d)
  - Refutation
    - P(i);P_SPINP(i)
- Try
  - R(G);CHECK
  - Vars
    - K(f);P_SPINS(d),S_FLIGHT::B(B)
    - K(f);S_FLIGHT::QAR1(H)
    - S(d);P_SPINS(d)::QAR1(H)
  - Refutation
    - P(i);P_SPINP(i)
- Try
  - Q(H);CHECK,XP(i)
  - Vars
    - K(f);P_SPINS(d),S_FLIGHT::B(B)
  - Refutation
    - K(f);P-FLIGHT
- Try
  - Q(H);CHECK
  - Vars
    - K(f);P-FLIGHT::QAB1(H)
  - Refutation
    - K(f);P_SPINS(d),S_FLIGHT
- Try
  - P(C);
  - Threat
    - DUALS(2)
  - Vars
    - P(i);XR(G)::QAR1(H)
    - S(d);::QAR1(H)
    - P(i);::QAR1(H)
    - B(a);::B(B)
    - S(b);::B(B)
  - Refutation
    - S(b);XP(C)
Actual
- Q(H);
- Threat
  - B(B)
- Vars
  - K(f);P_SPINS(d),S_FLIGHT::B(B)
  - B(a);SBLOCK::QAB(H),XP(j)
  - S(d);N_GUARD::QAR2(H)
  - S(d);OGATE::R1(F)
  - S(d);SBLOCK::R1(G)
  - S(d);N_GUARD,S_CUTP(i)::R(G)

MESON Chess Problem Database