Meson Chess Problem Database

Troianovski, Vladimir

1st Place, Source?, 1959

8 + 9

6490	yacpdb	2009

Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 0
Sets
- B(b);::QAB(B)
- B(b);XP(E)::QAB(B)
- P(f);SBLOCK::S(D)
- P(h);OGATE::B(H),XP(f)
Tries
- Try
  - B(G);
  - Threat
    - QAR1(B),XP(c)
  - Vars
    - K(e);N_SPINP(c),P-FLIGHT,XP(E)::QAB1(B),XP(c)
  - Refutation
    - P(f);
- Try
  - B(G);
  - Vars
    - B(b);XP(E)::QAB(B)
    - B(b);::QAB(B)
    - P(f);SBLOCK::S(D)
    - P(h);OGATE::B(H),XP(f)
  - Refutation
    - P(i);
- Try
  - B(G);
  - Vars
    - B(b);XP(E)::QAB(B)
    - B(b);::QAB(B)
    - P(f);SBLOCK::S(D)
    - P(h);OGATE::B(H),XP(f)
  - Refutation
    - P(i);
- Try
  - B(H);
  - Vars
    - B(b);XP(E)::QAB(B)
    - B(b);::QAB(B)
    - P(f);SBLOCK::S(D)
  - Refutation
    - P(h);
- Try
  - R(C);XB(b)
  - Threat
    - QAB(B)
  - Vars
    - P(f);SBLOCK::S(D)
  - Refutation
    - P(d);XR(C)
- Try
  - R(F);
  - Vars
    - B(b);XP(E)::QAB(B)
    - B(b);::QAB(B)
    - P(f);SBLOCK::S(D)
    - P(h);OGATE::B(H),XP(f)
  - Refutation
    - P(g);
- Try
  - Q(B);N_PINP(c)
  - Vars
    - P(c);CHECK,OGATEB::QAR2(B),XP(c)
  - Refutation
    - P(f);P_SPINP(h)
Actual
- S(D);
- Vars
  - K(e);N_SPINP(c),OGATEB,P-FLIGHT,XP(E)::QAR1(B)
  - K(e);N_SPINP(c),P-FLIGHT::QAR1(B)
  - B(b);SBLOCK,XP(E)::QAB1(B)
  - B(b);::QAR1(B),XP(c)
  - P(f);SBLOCK::QAB1(B)
  - P(h);S_CUTP(f),S_CUTP(f)::QAR2(B)

MESON Chess Problem Database