MESON Chess Problem Database
Problem Display
PID: 54646 (1K6/1p6/4R3/Nnk5/2P5/8/1Q6/8 w - - 0 1)
Nestorescu, Virgil
2nd HM., Revista de Sah, 1955
#2
5 + 3
| 3310 | 2345 Chess Problems | 1997 |
| 4764 | Probleme si studii alese | 1999 |
| 5454 | Near Snap | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Sa3
- 2.Qb6#
- 1...Sc3
- 2.Qb6#
- 1...Sd4
- 2.Qa3#
- 2.Qb6#
- 1...Sd6
- 2.Re5#
- 1...Sa7
- 2.Qb6#
- 1...Sc7
- 2.Qb6#
- 1...b6
- 2.Rc6#
- 1...Sa3
- Tries
- 1.Kxb7?
- threat
- 2.Rc6#
- 1...Sc3
- 2.Qb6#
- 1...Sd4
- 2.Qa3#
- 2.Qb6#
- 1...Sa7
- 2.Qb6#
- 1...Sd6+!
- threat
- 1.Ka8?
- 1...Sc3
- 2.Qb6#
- 1...Sa3
- 2.Qb6#
- 1...Sd4
- 2.Qa3#
- 2.Qb6#
- 1...Sd6
- 2.Re5#
- 1...Sa7
- 2.Qb6#
- 1...b6
- 2.Rc6#
- 1...Sc7+!
- 1...Sc3
- 1.Re5+?
- 1...Kb6
- 2.Qxb5#
- 1...Kd6!
- 1...Kb6
- 1.Rf6?
- 1...Sc3
- 2.Qb6#
- 1...Sa3
- 2.Qb6#
- 1...Sd4
- 2.Qa3#
- 2.Qb6#
- 1...Sa7
- 2.Qb6#
- 1...Sc7
- 2.Qb6#
- 1...b6
- 2.Rc6#
- 1...Sd6!
- 1...Sc3
- 1.Rg6?
- 1...Sc3
- 2.Qb6#
- 1...Sa3
- 2.Qb6#
- 1...Sd4
- 2.Qa3#
- 2.Qb6#
- 1...Sa7
- 2.Qb6#
- 1...Sc7
- 2.Qb6#
- 1...b6
- 2.Rc6#
- 1...Sd6!
- 1...Sc3
- 1.Rh6?
- 1...Sc3
- 2.Qb6#
- 1...Sa3
- 2.Qb6#
- 1...Sd4
- 2.Qa3#
- 2.Qb6#
- 1...Sa7
- 2.Qb6#
- 1...Sc7
- 2.Qb6#
- 1...b6
- 2.Rc6#
- 1...Sd6!
- 1...Sc3
- 1.Qa3+?
- 1...Kd4
- 2.Qe3#
- 1...Sxa3!
- 1...Kd4
- 1.Qd2?
- 1...Sc3
- 2.Qd6#
- 1...Sd6
- 2.Qxd6#
- 1...Sa3
- 2.Qd6#
- 1...Sa7
- 2.Qd6#
- 1...Sc7
- 2.Qd6#
- 1...b6
- 2.Re5#
- 2.Rc6#
- 1...Sd4!
- 1...Sc3
- 1.Qf2+?
- 1...Sd4
- 2.Qf8#
- 1...Kb4!
- 1...Sd4
- 1.cxb5?
- 1...Kd5
- 2.Qe5#
- 1...b6!
- 1...Kd5
- 1.Kxb7?
- Keys
- 1.Rb6!
- 1...Kxb6
- 2.Qxb5#
- 1...Sa3
- 2.Qf2#
- 1...Sc3
- 2.Qf2#
- 1...Sd4
- 2.Qb4#
- 1...Sd6
- 2.Qf2#
- 1...Sa7
- 2.Qf2#
- 1...Sc7
- 2.Qf2#
- 1...Kxb6
- 1.Rb6!
Anticipated by 22004(1923)
This anticipates 23158(1996)
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 2
- REMOVED MATES = 1
- Sets
- S(a);OGATE::QAB1(A)
- S(a);SBLOCK::R(D)
- P(c);N_GUARD::R1(D)
- Tries
- Try
- K(E);P-FLIGHT,XP(c)
- Threat
- R1(D)
- Vars
- S(a);OGATE::QAB1(A)
- Refutation
- S(a);CHECK
- Try
- K(E);P-FLIGHT
- Vars
- S(a);OGATE::QAB1(A)
- S(a);SBLOCK::R(D)
- P(c);N_GUARD::R1(D)
- Refutation
- S(a);CHECK
- Try
- R(D);CHECK
- Vars
- K(b);P_SPINS(a),S_FLIGHT::QAR1(A),XS(a)
- Refutation
- K(b);S_FLIGHT
- Try
- R(D);
- Vars
- S(a);OGATE::QAB1(A)
- P(c);N_GUARD::R1(D)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- S(a);OGATE::QAB1(A)
- P(c);N_GUARD::R1(D)
- Refutation
- S(a);
- Try
- R(D);
- Vars
- S(a);OGATE::QAB1(A)
- P(c);N_GUARD::R1(D)
- Refutation
- S(a);
- Try
- Q(A);CHECK
- Vars
- K(b);S_FLIGHT::QAB1(A)
- Refutation
- S(a);XQ(A)
- Try
- Q(A);
- Vars
- S(a);N_GUARD::QAB1(A)
- S(a);N_GUARD::QAB1(A),XS(a)
- Refutation
- S(a);
- Try
- Q(A);CHECK
- Vars
- S(a);N_GUARD,P_SPINS(a),SBLOCK::QAB(A)
- Refutation
- K(b);S_FLIGHT
- Try
- P(B);XS(a)
- Vars
- K(b);P-FLIGHT::QAR1(A)
- Refutation
- P(c);
- Try
- Actual
- R(D);
- Vars
- K(b);P_SPINS(a),S_FLIGHT,XR(D)::QAR1(A),XS(a)
- S(a);N_GUARD::QAB(A)
- S(a);SBLOCK::QAB1(A)
Developed and maintained by Brian Stephenson.
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