Meson Chess Problem Database

Dittrich, Stefan

2nd Comm., Deutsche Schachzeitung, 1981

8 + 11

15148	Sadier Collection	2021

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 9
Sets
- R(b);N_GUARD,P_PINB(C)::R(F)
- R(b);N_GUARD::R(F)
- R(b);S_CUTB(c)::B(C)
- B(c);S_CUTR(b)::R(F)
- P(g);S_CUTB(c)::B(C)
- P(j);N_GUARD::QAR1(G)
Tries
- Try
  - S(B);
  - Threat
    - S(B),XP(k)
  - Vars
    - P(g);N_GUARD::S(B),XB(e)
    - P(k);::S(B)
  - Refutation
    - R(b);XS(B)
- Try
  - R(A);
  - Threat
    - DUALS(2)
  - Vars
    - R(b);XR(A)::B(C)
    - B(c);XR(A)::R(F)
    - P(f);XB(C)::R(F)
    - Q(a);P_PINB(C)::R(F)
    - Q(a);::R(F)
    - Q(a);::B(C)
    - R(b);P_PINB(C)::R(F)
    - R(b);::R(F)
    - B(c);::R(F)
  - Refutation
    - Q(a);
- Try
  - Q(G);CHECK
  - Vars
    - K(i);P-FLIGHT::R1(F)
  - Refutation
    - K(i);P_SPINB(e),P_SPINP(f),S_FLIGHT,XQ(G)
- Try
  - Q(G);CHECK
  - Vars
    - K(i);P-FLIGHT::R1(F)
  - Refutation
    - K(i);P_SPINB(e),P_SPINP(g),S_FLIGHT
Actual
- Q(G);XP(j)
- Threat
  - QAR1(G)
- Vars
  - K(i);P_SPINB(e),P_SPINP(g),S_FLIGHT::B(C)
  - K(i);P-FLIGHT::R1(F)
  - B(e);N_GUARD,XP(E)::QAR1(G),XP(g)

MESON Chess Problem Database