Meson Chess Problem Database

Wrobel, Marian

Revista Romana de Sah, 1956

6 + 6

15148	Sadier Collection	2021

Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
Sets
- Q(b);N_PINQ(B),N_SPINQ(b),XB(A)::QAR1(B)
- Q(b);N_PINQ(B)::QAR1(B)
- Q(b);N_PINQ(B),OGATE::B(A),XQ(b)
- S(a);N_GUARD::B(A),XQ(b)
- S(c);N_PINQ(B)::QAR1(B)
- S(c);SBLOCK::R1(D)
Tries
- Try
  - K(C);N_SPINQ(B),S_FLIGHT
  - Threat
    - QAR1(B)
  - Vars
    - Q(b);OGATE::B(A),XQ(b)
    - S(a);N_GUARD::B(A),XQ(b)
  - Refutation
    - Q(b);CHECK
- Try
  - K(C);N_SPINQ(B),P-FLIGHT
  - Threat
    - QAR1(B)
  - Vars
    - Q(b);OGATE::B(A),XQ(b)
    - S(a);N_GUARD::B(A),XQ(b)
  - Refutation
    - Q(b);CHECK
- Try
  - R(D);N_SPINQ(B),XQ(b)
  - Threat
    - DUALS(2)
  - Vars
    - S(a);OGATE,P_SPINS(a),XR(D)::B(A),XS(a)
    - S(c);::B(A)+R(D),DCHECK
  - Refutation
    - K(f);S_FLIGHT
- Try
  - R(D);XS(c)
  - Vars
    - Q(b);N_PINQ(B),N_SPINQ(b),XB(A)::QAR1(B)
    - Q(b);N_PINQ(B)::QAR1(B)
    - S(a);N_GUARD::B(A),XQ(b)
  - Refutation
    - B(e);XR(D)
- Try
  - R(D);CHECK
  - Vars
    - S(c);N_GUARD,P_SPINS(c)::R1(D),XS(c)
  - Refutation
    - K(f);S_FLIGHT
- Try
  - Q(B);CHECK,N_SPINQ(B),XQ(b)
  - Refutation
    - S(a);P_SPINS(a),XQ(B)
- Try
  - Q(B);
  - Threat
    - DUALS(2)
  - Vars
    - S(a);N_GUARD::B(A),XQ(b)
  - Refutation
    - S(c);XQ(B)
Actual
- S(F);
- Vars
  - Q(b);N_PINQ(B),N_SPINQ(b),XB(A)::QAR1(B)
  - Q(b);N_PINQ(B)::QAR1(B)
  - Q(b);N_PINQ(B),OGATE::B(A),XQ(b)
  - S(a);N_GUARD::B(A),XQ(b)
  - S(c);N_GUARD::R(D)
  - S(c);N_PINQ(B)::QAR1(B)
  - S(c);SBLOCK::R1(D)

MESON Chess Problem Database