MESON Chess Problem Database
Problem Display
PID: 24462 (8/7B/1p1B1K2/n2p2R1/Q1n4p/p4k2/R7/3N1r1N w - - 0 1)
Petrovic, Nenad
12th Place, Sao Paulo Chess Club, 1955-1956
#2
8 + 8
| 3976 | FIDE Album (1956-1958) | 1961 |
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
| 6479 | Problemschach (Sidler) | 1968 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Rf2#
- 1...Rg1
- 2.Rf2#
- 1...Rxh1
- 2.Rf2#
- 1...Rf2
- 2.Rxf2#
- 1...Sb2
- 2.Qg4#
- 1...Sd2
- 2.Qg4#
- 1...Se3
- 2.Qf4#
- 1...Se5
- 2.Rf5#
- 1...Sxd6
- 2.Qg4#
- 1...h3
- 2.Rg3#
- 1...Re1
- Tries
- 1.Rf5+?
- 1...Ke4
- 2.Rf4#
- 1...Kg4!
- 1...Ke4
- 1.Qc2?
- threat
- 2.Qf5#
- 2.Qe2#
- 2.Qg2#
- 1...Rxd1
- 2.Qe2#
- 2.Qf2#
- 1...Sd2
- 2.Qd3#
- 1...Se5
- 2.Qf5#
- 1...Re1
- 2.Qf5#
- 2.Qf2#
- 2.Qg2#
- 1...Rg1
- 2.Qf5#
- 2.Qe2#
- 2.Qf2#
- 1...Rf2
- 2.Qf5#
- 2.Qxf2#
- 1...Sb2
- 2.Qg2#
- 1...Se3
- 2.Qe2#
- 1...h3
- 2.Rg3#
- 2.Qf5#
- 2.Qe2#
- 1...Sxd6!
- threat
- 1.Qb3+?
- 1...Se3
- 2.Qxe3#
- 1...Sxb3!
- 1...Se3
- 1.Qb5?
- threat
- 2.Qxd5#
- 1...Sxd6
- 2.Qxf1#
- 1...Se5
- 2.Qxf1#
- 1...Re1
- 2.Rf2#
- 1...Sb2
- 2.Qxf1#
- 1...Sd2
- 2.Qd3#
- 1...Se3
- 2.Qe2#
- 1...d4
- 2.Qd5#
- 2.Qf5#
- 1...Rxd1!
- threat
- 1.Qe8?
- threat
- 2.Qh5#
- 2.Qe2#
- 1...Rxd1
- 2.Rf2#
- 2.Qe2#
- 1...Sxd6
- 2.Qe3#
- 1...Re1
- 2.Rf2#
- 2.Qh5#
- 1...Rg1
- 2.Rf2#
- 2.Qe2#
- 1...Rf2
- 2.Rxf2#
- 2.Qh5#
- 1...Sb2
- 2.Qh5#
- 2.Qe3#
- 1...Sd2
- 2.Qh5#
- 2.Qe3#
- 1...Se3
- 2.Qxe3#
- 1...Se5!
- threat
- 1.Rf5+?
- Keys
- 1.Qd7!
- threat
- 2.Qh3#
- 2.Qg4#
- 2.Qf5#
- 1...Rxd1
- 2.Qh3#
- 1...Rxh1
- 2.Rf2#
- 2.Qg4#
- 2.Qf5#
- 1...Sxd6
- 2.Qg4#
- 1...Sb2
- 2.Qg4#
- 1...Sd2
- 2.Qg4#
- 1...Se5
- 2.Qf5#
- 1...Rg1
- 2.Rf2#
- 2.Qf5#
- 1...Se3
- 2.Qh3#
- 1...h3
- 2.Rg3#
- 2.Qxh3#
- 2.Qg4#
- 2.Qf5#
- threat
- 1.Qd7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 5
- Sets
- R(a);N_GUARD::R1(C)
- R(a);N_GUARD,XS(B)::R1(C)
- R(a);N_GUARD::R1(C),XR(a)
- S(d);OGATE::QAB1(D)
- S(d);OGATE::QAR1(D)
- S(d);::R(E)
- S(d);OGATE,XB(F)::QAB1(D)
- P(e);N_GUARD::R1(E)
- Tries
- Try
- R(E);CHECK
- Vars
- K(c);P_PINR(E),P_SPINS(d),S_FLIGHT::B(H)+R(E),DCHECK
- Refutation
- K(c);P_PINR(E),P_SPINS(d),S_FLIGHT
- Try
- Q(D);
- Threat
- DUALS(3)
- Vars
- S(d);N_GUARD::QAR2(D)
- S(d);::QAR2(D)
- S(d);::QAB1(D)
- Refutation
- S(d);XB(F)
- Try
- Q(D);CHECK
- Vars
- S(d);N_GUARD,P_SPINS(d)::QAR1(D),XS(d)
- Refutation
- S(f);XQ(D)
- Try
- Q(D);
- Threat
- QAB(D),XP(g)
- Vars
- S(d);OGATE,XB(F)::QAR2(D),XR(a)
- S(d);OGATE::QAR2(D),XR(a)
- R(a);N_GUARD::R1(C)
- S(d);OGATE::QAR2(D)
- S(d);OGATE::QAB1(D)
- Refutation
- R(a);XS(A)
- Try
- Q(D);
- Threat
- DUALS(2)
- Vars
- S(d);N_GUARD,XB(F)::QAR1(D)
- S(d);N_GUARD::QAR1(D),XS(d)
- Refutation
- S(d);
- Try
- Actual
- Q(D);
- Threat
- DUALS(3)
- Vars
- R(a);XS(A)::QAR2(D)
- S(d);XB(F)::QAB1(D)
- S(d);::QAB1(D)
- S(d);::QAR2(D)
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