MESON Chess Problem Database
Problem Display
PID: 18793 (8/2Q2n2/1K6/3p4/1p1kp3/1P6/4Rn2/2R1N3 w - - 0 1)
Rudenko, Valentin Fedorovich
L'Italia Scacchistica, 1958
#2
6 + 6
| 3174 | The Two-move Chess Problem Tradition and Development | 1966 |
| 3310 | 2345 Chess Problems | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Sd1
- 2.Rxd1#
- 1...Sh1
- 2.Rd1#
- 1...Sd3
- 2.Sc2#
- 1...Sh3
- 2.Rd1#
- 1...Sg4
- 2.Rd1#
- 1...Se5
- 2.Qc5#
- 1...Sg5
- 2.Qg7#
- 1...Sd6
- 2.Qg7#
- 1...Sh6
- 2.Qg7#
- 1...Sd8
- 2.Qg7#
- 1...Sh8
- 2.Qg7#
- 1...Sd1
- Tries
- 1.Ka5?
- 1...Sd6
- 2.Qg7#
- 1...Sd1
- 2.Rxd1#
- 1...Sh1
- 2.Rd1#
- 1...Sd3
- 2.Sc2#
- 1...Sh3
- 2.Rd1#
- 1...Sg4
- 2.Rd1#
- 1...Se5
- 2.Qb6#
- 2.Qc5#
- 2.Qa7#
- 1...Sg5
- 2.Qg7#
- 1...Sh6
- 2.Qg7#
- 1...Sd8
- 2.Qg7#
- 1...Sh8
- 2.Qg7#
- 1...e3!
- 1...Sd6
- 1.Ka6?
- 1...Sd6
- 2.Qg7#
- 1...Sd1
- 2.Rxd1#
- 1...Sh1
- 2.Rd1#
- 1...Sd3
- 2.Sc2#
- 1...Sh3
- 2.Rd1#
- 1...Sg4
- 2.Rd1#
- 1...Se5
- 2.Qb6#
- 2.Qc5#
- 2.Qa7#
- 1...Sg5
- 2.Qg7#
- 1...Sh6
- 2.Qg7#
- 1...Sd8
- 2.Qg7#
- 1...Sh8
- 2.Qg7#
- 1...e3!
- 1...Sd6
- 1.Ka7?
- 1...Sd6
- 2.Qg7#
- 1...Sd1
- 2.Rxd1#
- 1...Sh1
- 2.Rd1#
- 1...Sd3
- 2.Sc2#
- 1...Sh3
- 2.Rd1#
- 1...Sg4
- 2.Rd1#
- 1...Se5
- 2.Qb6#
- 2.Qc5#
- 1...Sg5
- 2.Qg7#
- 1...Sh6
- 2.Qg7#
- 1...Sd8
- 2.Qg7#
- 1...Sh8
- 2.Qg7#
- 1...e3!
- 1...Sd6
- 1.Sf3+?
- 1...Kd3
- 2.Qc2#
- 1...exf3!
- 1...Kd3
- 1.Ra1?
- 1...Sd6
- 2.Qg7#
- 1...Sd1
- 2.Rxd1#
- 1...Sh1
- 2.Rd1#
- 1...Sd3
- 2.Sc2#
- 1...Sh3
- 2.Rd1#
- 1...Sg4
- 2.Rd1#
- 1...Se5
- 2.Qc5#
- 1...Sg5
- 2.Qg7#
- 1...Sh6
- 2.Qg7#
- 1...Sd8
- 2.Qg7#
- 1...Sh8
- 2.Qg7#
- 1...e3!
- 1...Sd6
- 1.Rb1?
- 1...Sd6
- 2.Qg7#
- 1...Sd1
- 2.Rxd1#
- 1...Sh1
- 2.Rd1#
- 1...Sd3
- 2.Sc2#
- 1...Sh3
- 2.Rd1#
- 1...Sg4
- 2.Rd1#
- 1...Se5
- 2.Qc5#
- 1...Sg5
- 2.Qg7#
- 1...Sh6
- 2.Qg7#
- 1...Sd8
- 2.Qg7#
- 1...Sh8
- 2.Qg7#
- 1...e3!
- 1...Sd6
- 1.Rd1+?
- 1...Sd3
- 2.Sc2#
- 1...Sxd1!
- 1...Sd3
- 1.Rd2+?
- 1...Sd3
- 2.Sc2#
- 1...Ke3!
- 1...Sd3
- 1.Qg3?
- threat
- 2.Sc2#
- 1...e3
- 2.Qxe3#
- 1...Sd3!
- threat
- 1.Qd6?
- threat
- 2.Rc4#
- 1...Se5
- 2.Qc5#
- 1...Sxd6!
- threat
- 1.Ka5?
- Keys
- 1.Qf4!
- 1...Sd1
- 2.Rd2#
- 1...Sh1
- 2.Rd2#
- 1...Sd3
- 2.Sf3#
- 1...Sh3
- 2.Rd2#
- 1...Sg4
- 2.Rd2#
- 1...Se5
- 2.Qe3#
- 1...Sg5
- 2.Qf6#
- 1...Sd6
- 2.Qf6#
- 1...Sh6
- 2.Qf6#
- 1...Sd8
- 2.Qf6#
- 1...Sh8
- 2.Qf6#
- 1...Sd1
- 1.Qf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 11
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD::R(A)
- S(a);SBLOCK::S(B)
- S(f);SBLOCK::QAB1(F)
- S(f);OGATE::QAB(F)
- Tries
- Try
- K(E);S_FLIGHT
- Vars
- S(f);OGATE::QAB(F)
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD::R(A)
- S(a);SBLOCK::S(B)
- Refutation
- P(d);
- Try
- K(E);P-FLIGHT
- Vars
- S(f);OGATE::QAB(F)
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD::R(A)
- S(a);SBLOCK::S(B)
- Refutation
- P(d);
- Try
- K(E);S_FLIGHT
- Vars
- S(f);OGATE::QAB(F)
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD::R(A)
- S(a);SBLOCK::S(B)
- Refutation
- P(d);
- Try
- S(B);CHECK
- Vars
- K(c);P-FLIGHT::QAB1(F)
- Refutation
- P(d);XS(B)
- Try
- R(A);
- Vars
- S(f);OGATE::QAB(F)
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD::R(A)
- S(a);SBLOCK::S(B)
- S(f);SBLOCK::QAB1(F)
- Refutation
- P(d);
- Try
- R(A);
- Vars
- S(f);OGATE::QAB(F)
- S(a);N_GUARD::R(A),XS(a)
- S(a);N_GUARD::R(A)
- S(a);SBLOCK::S(B)
- S(f);SBLOCK::QAB1(F)
- Refutation
- P(d);
- Try
- R(A);CHECK
- Vars
- S(a);P_SPINS(a)::S(B)
- Refutation
- S(a);XR(A)
- Try
- R(C);CHECK
- Vars
- S(a);P_SPINS(a)::S(B)
- Refutation
- K(c);S_FLIGHT
- Try
- Q(F);
- Threat
- S(B)
- Vars
- P(d);::QAB1(F),XP(d)
- Refutation
- S(a);
- Try
- Q(F);P_PINP(e)
- Threat
- R1(A)
- Vars
- S(f);SBLOCK::QAB1(F)
- Refutation
- S(f);N_SPINP(e),XQ(F)
- Try
- Actual
- Q(F);P_PINP(d)
- Vars
- S(a);N_GUARD::R(C)
- S(a);SBLOCK::S(B)
- S(f);SBLOCK::QAB1(F)
- S(f);N_GUARD::QAB(F)
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