Meson Chess Problem Database

Groeneveld, Cornelis

3rd HM., Wola Gulowska, 1997

10 + 13

15345	Wola Gulowska Award	1997
6490	yacpdb	2009

Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 12
Sets
- Q(d);N_GUARD::QAB1(B)
- Q(d);N_GUARD::QAB1(B),XQ(d)
- R(e);N_GUARD,N_SPINS(b),XB(A)::QAB(B)
- R(e);N_GUARD::QAB(B)
- R(e);N_GUARD,N_SPINS(b)::QAB(B),XR(e)
- R(g);N_GUARD::QAR1(B)
- R(g);N_GUARD::QAR1(B),XR(g)
- S(i);N_GUARD::R1(G)
- S(i);CHECK,N_GUARD::R1(G),XS(i)
- S(i);N_GUARD,XP(H)::R1(G)
- P(l);N_GUARD::S(D)
Tries
- Try
  - S(D);
  - Threat
    - DUALS(2)
  - Vars
    - S(i);CHECK,N_GUARD::R1(G),XS(i)
    - B(m);XB(J)::QAB1(B)
    - P(h);XS(D)::QAB(B)
    - P(c);::QAB1(B)
    - Q(d);N_GUARD::QAB1(B),XQ(d)
    - R(g);N_GUARD::QAR1(B),XR(g)
    - B(a);::QAB1(B)
    - S(i);N_GUARD::R1(G)
    - P(f);::QAB1(B)
  - Refutation
    - R(e);XS(D)
- Try
  - S(F);
  - Threat
    - DUALS(2)
  - Vars
    - S(i);CHECK,N_GUARD::R1(G),XS(i)
    - B(m);XB(J)::QAB1(B)
  - Refutation
    - P(k);XS(F)
- Try
  - S(F);
  - Threat
    - QAB1(B)
  - Vars
    - S(i);CHECK,OGATE,XS(F)::R1(G),XS(i)
    - R(g);SBLOCK::QAB1(B)
    - Q(d);SBLOCK::QAR2(B)
  - Refutation
    - S(i);
- Try
  - B(A);CHECK,XS(b)
  - Refutation
    - B(a);XB(A)
- Try
  - Q(B);CHECK,XS(b)
  - Vars
    - R(e);N_GUARD,P_SPINR(e)::QAB(B),XR(e)
  - Refutation
    - B(a);P_SPINB(a),XQ(B)
Actual
- Q(B);
- Threat
  - S(D)
- Vars
  - S(i);CHECK,N_GUARD::R1(G),XS(i)
  - R(e);N_GUARD,N_SPINS(b),XB(A)::QAB(B)
  - Q(d);SBLOCK::R1(G)
  - R(e);N_GUARD,N_SPINS(b)::QAB(B),XR(e)
  - R(g);SBLOCK::S(F)
  - P(l);N_GUARD::S(D)

MESON Chess Problem Database