Meson Chess Problem Database

King-Parks, Thomas

Manchester Times, 1908

10 + 9

3360	Simple Two-move Themes	1924

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 7
Sets
- R(a);OGATE::QAR2(D),XP(b)
- R(a);N_GUARD::QAB(D),XR(a)
- R(d);OGATE,XP(E)::QAR2(D)
- R(d);OGATE::QAR2(D)
Tries
- Try
  - B(J);CHECK
  - Vars
    - R(a);OGATE,XB(J)::QAR2(D),XP(b)
  - Refutation
    - P(g);XB(J)
- Try
  - B(J);CHECK
  - Vars
    - P(h);P_SPINP(h)::B(J),XP(h)
  - Refutation
    - P(i);P_SPINP(i)
- Try
  - Q(D);CHECK
  - Vars
    - R(a);N_GUARD,P_SPINR(a)::QAB(D),XR(a)
    - R(a);N_GUARD,P_SPINR(a)::QAB1(D),XR(a)
  - Refutation
    - P(c);P_SPINP(c)
- Try
  - Q(D);CHECK,XR(d)
  - Refutation
    - P(f);XQ(D)
- Try
  - Q(D);CHECK
  - Vars
    - R(a);N_GUARD,P_SPINR(a)::QAB1(D),XR(a)
  - Refutation
    - R(a);XQ(D)
- Try
  - Q(D);XR(a)
  - Threat
    - DUALS(4)
  - Refutation
    - P(c);XQ(D)
Actual
- B(B);
- Threat
  - R(G)+P(F)
- Vars
  - K(e);P-FLIGHT,XB(B)::S(H)
  - R(a);OGATE,SBLOCK,XB(B)::QAR2(D),XP(b)
  - R(d);OGATE,SBLOCK,XB(B)::QAR2(D)
  - P(h);SBLOCK::R(I)+S(H),XP(g)
  - P(i);OGATE::R(G)+P(F),XP(i)

MESON Chess Problem Database