Meson Chess Problem Database

Buchner, Richard

Source?, 0000

7 + 8

15148	Sadier Collection	2014

Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 2
Sets
- R(d);SBLOCK::S(D)
- P(b);OGATEB::QAR2(G),XP(b)
- P(e);N_GUARD,SBLOCK::R(C)
- P(e);SBLOCK::S(E)
- P(g);OGATEB,SBLOCK::QAB(G)
- P(g);SBLOCK::S(D)
Tries
- Try
  - B(B);CHECK
  - Vars
    - P(g);P_SPINP(g),S_CUTS(a),S_CUTS(a)::QAB(G)
  - Refutation
    - S(a);P_SPINS(a)
- Try
  - R(C);CHECK
  - Vars
    - K(c);S_FLIGHT::QAR2(G)
  - Refutation
    - P(e);P_SPINP(e)
- Try
  - Q(G);
  - Threat
    - DUALS(3)
  - Vars
    - P(g);::S(E)
    - P(e);N_GUARD::R(C)
    - P(e);::S(E)
  - Refutation
    - S(a);
- Try
  - Q(G);
  - Threat
    - QAB1(G),XP(e)
  - Vars
    - P(g);SBLOCK::S(D)
    - P(e);::QAB1(G)
    - P(g);OGATEB,SBLOCK::QAB(G)
  - Refutation
    - K(c);P_SPINP(b),S_FLIGHT
- Try
  - Q(G);P_PINP(f)
  - Threat
    - QAB1(G),XP(e)
  - Vars
    - P(e);::QAB1(G)
    - P(g);OGATEB,SBLOCK::QAB(G)
    - P(g);SBLOCK::S(D)
  - Refutation
    - K(c);N_SPINP(f),P_SPINP(b),S_FLIGHT
Actual
- P(A);
- Threat
  - R1(C),XP(b)
- Vars
  - P(b);OGATEB,XP(A)::QAR2(G)
  - P(g);OGATEB,SBLOCK::QAB(G)
  - P(g);SBLOCK::S(D)
  - S(a);N_GUARD::P(A)
  - P(e);N_GUARD,SBLOCK::R(C)
  - P(e);SBLOCK::S(E)

MESON Chess Problem Database