Meson Chess Problem Database

Fricke, Friedrich

Deutsche Schachzeitung, 1984

12 + 11

15601	Albrecht-Leiss-Degener Collection	2021

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 7
Sets
- R(i);N_GUARD,XQ(B)::S(L),XP(h)
- R(i);N_GUARD::S(L),XP(h)
- B(f);SBLOCK::S(L)
- S(c);N_GUARD::P(D)
Tries
- Try
  - S(G);
  - Threat
    - R1(K)
  - Vars
    - R(i);N_GUARD::S(L),XP(h)
    - S(c);N_GUARD,S_CUTR(i)::QAB(B),XS(a)
    - P(b);::S(G)
    - S(c);N_GUARD::P(D)
    - S(c);SBLOCK::S(G)
  - Refutation
    - P(j);CHECK,XS(G)
- Try
  - R(K);CHECK
  - Vars
    - K(g);S_FLIGHT::R1(K)
  - Refutation
    - B(f);P_SPINB(f)
- Try
  - Q(B);CHECK,XS(a)
  - Vars
    - R(i);P_SPINR(i)::S(L),XP(h)
    - S(c);N_GUARD,P_SPINS(c)::QAB1(B),XS(c)
  - Refutation
    - S(c);XQ(B)
- Try
  - Q(B);CHECK
  - Vars
    - R(i);XQ(B)::S(L),XP(h)
    - S(c);N_GUARD,P_SPINS(c)::QAB1(B),XS(c)
  - Refutation
    - P(d);XQ(B)
- Try
  - Q(B);CHECK
  - Vars
    - R(i);XQ(B)::S(L),XP(h)
    - P(h);P_SPINP(h)::QAR2(B),XP(h)
  - Refutation
    - P(h);XQ(B)
- Try
  - Q(B);XR(i)
  - Threat
    - DUALS(2)
  - Vars
    - B(f);XS(L)::QAR2(B)
    - P(b);XB(A)::S(L),XP(h)
    - B(f);::S(L),XP(h)
    - S(a);::S(L),XP(h)
    - S(c);N_GUARD::QAB1(B)
  - Refutation
    - P(j);CHECK,XQ(B)
Actual
- S(G);
- Threat
  - R1(K)
- Vars
  - S(c);N_GUARD,XS(G)::P(D)
  - R(i);N_GUARD::S(L),XP(h)
  - S(c);N_GUARD,S_CUTR(i)::QAB(B),XS(a)
  - P(b);::S(G)
  - B(f);SBLOCK::S(L)
  - S(c);SBLOCK::S(G)

MESON Chess Problem Database