Meson Chess Problem Database

Kiss, Janos

3rd Prize, Probleemblad, 1953

12 + 11

3147	Chess Problems: Introduction to an Art	1963
3105	FIDE Album (1945-1955)	1964
5862	An ABC of Chess Problems	1970
273	Mat Plus	1994
5395	Schach fur Nussknacker	1994

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 17
- ADDED MATES = 2
- REMOVED MATES = 0
Sets
- R(b);N_GUARD::QAR1(B)
- R(b);N_GUARD,P_PINP(E)::QAR1(B)
- R(b);N_PINS(G),S_CUTB(a)::QAB1(B)
- R(b);N_GUARD::QAR1(B),XR(b)
- R(h);N_GUARD::B(L),XP(i)
- R(h);S_CUTB(j)::S(K),XP(f)
- B(a);N_GUARD,N_PINS(G),XP(A)::QAB1(B)
- B(a);S_CUTR(b)::QAR1(B)
- B(a);N_GUARD::QAB1(B),XB(a)
- B(j);S_CUTR(h)::B(L),XP(i)
- B(j);N_GUARD::S(K),XP(f)
- S(k);N_GUARD,XB(H)::S(K)
- S(k);N_GUARD::S(K),XS(k)
- S(k);N_GUARD::S(K)
Tries
- Try
  - R(D);CHECK
  - Vars
    - K(d);S_FLIGHT::B(L)
  - Refutation
    - R(b);XR(D)
- Try
  - P(F);XP(f)
  - Threat
    - DUALS(2)
  - Vars
    - B(j);XP(F)::S(K),XB(j)
    - R(h);N_GUARD::B(L),XP(i)
  - Refutation
    - B(a);CHECK,XS(G)
- Try
  - P(I);
  - Threat
    - DUALS(2)
  - Vars
    - B(a);N_GUARD::QAB1(B),XB(a)
    - S(k);N_GUARD::S(K),XS(k)
    - S(k);N_GUARD::S(K)
  - Refutation
    - B(a);CHECK,XS(G)
Actual
- Q(B);XP(f)
- Vars
  - B(a);CHECK,OGATE,XS(G)::R(C),XB(a)
  - B(a);N_PINS(G),XP(A)::S(G)
  - B(j);XQ(B)::S(K),XB(j)
  - S(k);OGATE,XB(H)::QAR1(B),XS(k)
  - R(b);N_GUARD::R1(D),XR(b)
  - R(b);N_GUARD::R1(D)
  - R(b);N_GUARD,P_PINP(E)::R1(D)
  - R(b);N_PINS(G)::S(G)
  - R(h);N_GUARD::QAB(B),XP(i)
  - R(h);S_CUTB(j)::QAR1(B)
  - B(a);S_CUTR(b)::R1(D)
  - B(a);SBLOCK::R1(D)
  - B(j);S_CUTR(h)::QAB(B),XP(i)
  - B(j);N_GUARD::QAR1(B)
  - S(k);N_GUARD::S(K),XS(k)
  - S(k);N_GUARD::S(K)

MESON Chess Problem Database