Meson Chess Problem Database

Wash, Benjamin S

Sunny South, 1888

4 + 5

5064	100 Years of the American Two-move Chess Problem	1962
3310	2345 Chess Problems	1997

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 1
Sets
- R(b);N_GUARD::S(A)
- R(b);N_GUARD::QAB(B)
- R(b);N_GUARD::S(A),XR(b)
- R(b);CHECK,N_GUARD::QAB(B),XR(b)
- S(a);S_CUTR(b)::S(A)
Tries
- Try
  - S(A);
  - Threat
    - QAB1(B)
  - Vars
    - R(b);CHECK,N_GUARD::QAB(B),XR(b)
  - Refutation
    - R(b);
- Try
  - Q(B);CHECK
  - Refutation
    - K(d);S_FLIGHT
- Try
  - Q(B);
  - Threat
    - QAB(B)
  - Vars
    - R(b);CHECK,N_GUARD::QAB(B),XR(b)
    - R(b);N_GUARD::S(A),XR(b)
    - R(b);N_GUARD::S(A)
  - Refutation
    - K(d);S_FLIGHT
- Try
  - Q(B);CHECK
  - Vars
    - R(b);P_SPINR(b)::S(A)
    - S(a);N_GUARD,P_SPINS(a)::QAR2(B),XS(a)
  - Refutation
    - K(d);S_FLIGHT
- Try
  - Q(B);
  - Threat
    - QAB(B)
  - Vars
    - R(b);N_GUARD::S(A)
    - R(b);N_GUARD::S(A),XR(b)
  - Refutation
    - R(b);CHECK
- Try
  - Q(B);
  - Threat
    - QAB(B)
  - Vars
    - R(b);N_GUARD::S(A),XR(b)
    - R(b);N_GUARD::S(A)
  - Refutation
    - R(b);CHECK
- Try
  - Q(B);
  - Threat
    - QAB(B)
  - Vars
    - R(b);N_GUARD::S(A),XR(b)
    - R(b);N_GUARD::S(A)
  - Refutation
    - R(b);CHECK
Actual
- Q(B);
- Vars
  - R(b);CHECK,OGATE::QAB(B),XR(b)
  - R(b);N_GUARD,XQ(B)::S(A)
  - R(b);OGATE::QAB(B)
  - S(a);S_CUTR(b)::S(A)
  - S(a);N_GUARD::QAR2(B),XS(a)
  - S(a);N_GUARD::QAR2(B)
  - R(b);N_GUARD::S(A),XR(b)
  - R(b);N_GUARD::S(A)

MESON Chess Problem Database