MESON Chess Problem Database
Problem Display
PID: 18927 (4N3/2p1p2r/r1nP4/NB1k4/2RBp1Qp/7K/8/4b3 w - - 0 1)
Rudenko, Valentin Fedorovich
1st Prize, Praca, 1959
#2
8 + 9
| 3749 | FIDE Album (1959-1961) | 1966 |
| 5862 | An ABC of Chess Problems | 1970 |
| 4640 | Chess Wizardry: The New ABC of Chess Problems | 1996 |
SOLUTION
- SOUND
- Sets
- 1...Ra7
- 2.Bxc6#
- 1...Ra8
- 2.Bxc6#
- 1...e3
- 2.Rc5#
- 1...cxd6
- 2.Sc7#
- 1...exd6
- 2.Sf6#
- 1...Ra7
- Tries
- 1.Sb3?
- threat
- 2.Rc5#
- 1...cxd6
- 2.Sc7#
- 1...exd6
- 2.Sf6#
- 1...Bb4!
- threat
- 1.Sf6+?
- 1...Kxd6
- 2.Sb7#
- 2.Qd7#
- 1...exf6!
- 1...Kxd6
- 1.Bg1?
- threat
- 2.Rc5#
- 2.Qxe4#
- 1...Ke5
- 2.Rc5#
- 2.Qxe4#
- 1...cxd6
- 2.Qxe4#
- 1...exd6
- 2.Qxe4#
- 1...Bf2
- 2.Qxe4#
- 1...Bb4
- 2.Qxe4#
- 1...Se5
- 2.Rc5#
- 1...e3
- 2.Qe4#
- 1...e5
- 2.Rc5#
- 1...Sd4!
- threat
- 1.Bf2?
- threat
- 2.Rc5#
- 2.Qxe4#
- 1...Ke5
- 2.Rc5#
- 2.Qxe4#
- 1...Bxf2
- 2.Qxe4#
- 1...cxd6
- 2.Qxe4#
- 1...exd6
- 2.Qxe4#
- 1...Se5
- 2.Rc5#
- 1...Bb4
- 2.Qxe4#
- 1...e3
- 2.Qe4#
- 1...e5
- 2.Rc5#
- 1...Sd4!
- threat
- 1.Be3?
- threat
- 2.Rc5#
- 2.Qxe4#
- 1...Ke5
- 2.Rc5#
- 2.Qxe4#
- 1...cxd6
- 2.Qxe4#
- 1...exd6
- 2.Qxe4#
- 1...Se5
- 2.Rc5#
- 1...Bb4
- 2.Qxe4#
- 1...e5
- 2.Rc5#
- 1...Sd4!
- threat
- 1.Bc5?
- threat
- 2.Qxe4#
- 1...Ke5
- 2.Qxe4#
- 1...Se5
- 2.Sxc7#
- 1...e3
- 2.Qe4#
- 1...e5
- 2.Sf6#
- 1...Sd4!
- threat
- 1.Ba7?
- threat
- 2.Qxe4#
- 1...Ke5
- 2.Qxe4#
- 1...Sd4
- 2.Rc5#
- 1...Se5
- 2.Rd4#
- 1...e3
- 2.Rc5#
- 2.Qe4#
- 1...e5!
- threat
- 1.Qf5+?
- 1...Se5
- 2.Qxe5#
- 1...e5!
- 1...Se5
- 1.Sb3?
- Keys
- 1.Bb6!
- threat
- 2.Qxe4#
- 1...Ke5
- 2.Qxe4#
- 1...Sd4
- 2.Rc5#
- 1...Se5
- 2.Rd4#
- 1...e3
- 2.Rc5#
- 2.Qe4#
- 1...e5
- 2.Bxc6#
- threat
- 1.Bb6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 5
- Sets
- R(e);N_GUARD::B(F),XS(f)
- P(b);::R1(B)
- P(g);SBLOCK,XP(G)::S(H)
- P(h);N_GUARD,SBLOCK,XP(G)::S(H)
- Tries
- Try
- S(E);
- Threat
- R1(B)
- Vars
- P(g);SBLOCK,XP(G)::S(H)
- P(h);N_GUARD,SBLOCK,XP(G)::S(H)
- Refutation
- B(a);
- Try
- S(H);CHECK
- Refutation
- P(h);XS(H)
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- P(g);XP(G)::QAB1(D),XP(b)
- P(h);XP(G)::QAB1(D),XP(b)
- B(a);::QAB1(D),XP(b)
- S(f);SBLOCK::R1(B)
- P(b);::QAB1(D)
- P(h);SBLOCK::R1(B)
- Refutation
- S(f);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- B(a);XB(C)::QAB1(D),XP(b)
- P(g);XP(G)::QAB1(D),XP(b)
- P(h);XP(G)::QAB1(D),XP(b)
- S(f);SBLOCK::R1(B)
- B(a);::QAB1(D),XP(b)
- P(b);::QAB1(D)
- P(h);SBLOCK::R1(B)
- Refutation
- S(f);
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- P(g);XP(G)::QAB1(D),XP(b)
- P(h);XP(G)::QAB1(D),XP(b)
- S(f);SBLOCK::R1(B)
- B(a);::QAB1(D),XP(b)
- P(h);SBLOCK::R1(B)
- Refutation
- S(f);
- Try
- B(C);
- Threat
- QAB1(D),XP(b)
- Vars
- K(d);P-FLIGHT::QAR1(D),XP(b)
- S(f);SBLOCK::S(H),XP(g)
- P(b);::QAB1(D)
- P(h);N_GUARD,SBLOCK::S(H)
- Refutation
- S(f);
- Try
- B(C);
- Threat
- QAB1(D),XP(b)
- Vars
- K(d);P-FLIGHT::QAR1(D),XP(b)
- S(f);SBLOCK::R1(B)
- S(f);N_GUARD,SBLOCK::R1(B)
- Refutation
- P(h);
- Try
- Q(D);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAR1(D),XS(f)
- Refutation
- P(h);P_SPINP(h)
- Try
- Actual
- B(C);
- Threat
- QAB1(D),XP(b)
- Vars
- K(d);P-FLIGHT::QAR1(D),XP(b)
- S(f);SBLOCK::R1(B)
- S(f);N_GUARD,SBLOCK::R1(B)
- P(h);SBLOCK::B(F),XS(f)
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