Meson Chess Problem Database

Murashev, Pavel Aleksandrovich

Problemist Ukraini, 2021

11 + 13

Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 4
- REMOVED MATES = 10
Sets
- Q(j);XR(E)::B(K)+S(G),DCHECK
- Q(j);::B(K)+S(G),DCHECK
- Q(j);XS(F)::B(K)+S(G),DCHECK
- Q(j);::S(G)
- S(i);SBLOCK::B(K)+S(G),DCHECK
Tries
- Try
  - S(F);XP(b)
  - Threat
    - QAR(A)
  - Vars
    - Q(j);XR(E)::B(K)+S(G),DCHECK
    - Q(j);::B(K)+S(G),DCHECK
    - S(i);N_GUARD::QAR1(A),XS(i)
  - Refutation
    - P(f);
- Try
  - S(F);XP(f)
  - Threat
    - DUALS(2)
  - Vars
    - Q(j);P_PINS(F),P_SPINQ(j),XS(G)::QAR(A)
    - R(h);P_SPINR(h),XS(G)::QAR(A)
    - Q(j);::B(K)+S(G),DCHECK
  - Refutation
    - B(m);CHECK,XS(F)
- Try
  - S(F);
  - Threat
    - DUALS(2)
  - Vars
    - Q(j);P_SPINQ(j),XS(G)::QAR(A)
    - R(h);P_SPINR(h),XS(G)::QAR(A)
    - Q(j);::S(G)
    - Q(j);::B(K)+S(G),DCHECK
  - Refutation
    - Q(j);
- Try
  - R(J);XQ(j)
  - Threat
    - B(K)+S(G),DCHECK
  - Vars
    - R(h);OGATE,P_SPINR(h),XS(G)::B(K),XR(h)
    - P(f);::B(K)+S(G),DCHECK,XP(f)
  - Refutation
    - B(l);XR(J)
- Try
  - Q(A);CHECK
  - Vars
    - S(i);SBLOCK,XQ(A)::B(K)+S(G),DCHECK
  - Refutation
    - K(e);P-FLIGHT,XQ(A)
Actual
- S(F);
- Threat
  - S(G)
- Vars
  - K(e);P_SPINQ(j),S_FLIGHT,XS(G)::QAR1(A)
  - Q(j);XR(E)::QAR(A)
  - Q(j);XS(G)::QAR(A)
  - R(h);SBLOCK,XS(G)::QAR(A)
  - Q(j);::QAR(A)
  - P(f);::S(G),XP(f)

MESON Chess Problem Database