MESON Chess Problem Database
Problem Display
PID: 244880 (3RK3/5p2/Bpp2Qp1/8/1p1Nkb2/3R4/8/3b4 w - - 0 1)
Lider, Valentin Viktorovich
Schweizerische Schachzeitung, 1992
#2
6 + 8
SOLUTION
- SOUND
- Sets
- 1...g5
- 2.Qf5#
- 1...g5
- Tries
- 1.Se2?
- threat
- 2.R8d4#
- 2.Qxf4#
- 1...Bxe2
- 2.R8d4#
- 1...Bc1
- 2.Sg3#
- 2.R8d4#
- 1...Bd2
- 2.Sg3#
- 2.R8d4#
- 1...Bh2
- 2.R8d4#
- 1...Be3
- 2.Sg3#
- 1...Bg3
- 2.Sxg3#
- 2.R8d4#
- 1...Be5
- 2.Qf3#
- 1...Bg5
- 2.Sg3#
- 2.R8d4#
- 1...Bh6
- 2.Sg3#
- 2.R8d4#
- 1...Bc7
- 2.R8d4#
- 1...Bb8
- 2.R8d4#
- 1...c5
- 2.Bb7#
- 2.Qxf4#
- 1...g5
- 2.R8d4#
- 1...Bd6!
- threat
- 1.Sb3?
- threat
- 2.R8d4#
- 1...Be5
- 2.Sd2#
- 1...Bd6
- 2.Sd2#
- 1...c5
- 2.Bb7#
- 1...Be3!
- threat
- 1.Sf3?
- threat
- 2.R8d4#
- 1...Be5
- 2.Sd2#
- 2.Sg5#
- 2.Qxe5#
- 1...Bd6
- 2.Sd2#
- 2.Sg5#
- 1...c5
- 2.Bb7#
- 1...Be3!
- threat
- 1.Sb5?
- threat
- 2.R8d4#
- 1...Bd6
- 2.Sxd6#
- 1...Be3
- 2.Sd6#
- 1...c5
- 2.Bb7#
- 1...Be5!
- threat
- 1.Sf5?
- threat
- 2.R8d4#
- 1...Be3
- 2.Sg3#
- 2.Sd6#
- 1...Bd6
- 2.Sxd6#
- 1...c5
- 2.Bb7#
- 1...Be5!
- threat
- 1.Se6?
- threat
- 2.R8d4#
- 2.Qxf4#
- 1...fxe6
- 2.R8d4#
- 1...Bc1
- 2.R8d4#
- 1...Bd2
- 2.R8d4#
- 1...Bh2
- 2.Sg5#
- 2.R8d4#
- 1...Bg3
- 2.Sg5#
- 2.R8d4#
- 1...Be5
- 2.Sg5#
- 1...Bg5
- 2.Sxg5#
- 2.R8d4#
- 1...Bd6
- 2.Sg5#
- 1...Bh6
- 2.R8d4#
- 1...Bc7
- 2.Sg5#
- 2.R8d4#
- 1...Bb8
- 2.Sg5#
- 2.R8d4#
- 1...c5
- 2.Bb7#
- 2.Qxf4#
- 1...g5
- 2.R8d4#
- 1...Be3!
- threat
- 1.Qxg6+?
- 1...Ke5
- 2.Sxc6#
- 2.Qf5#
- 1...f5
- 2.Qxf5#
- 1...fxg6!
- 1...Ke5
- 1.Se2?
- Keys
- 1.Sc2!
- threat
- 2.R8d4#
- 1...Be3
- 2.Rxe3#
- 1...Be5
- 2.Re3#
- 1...Bd6
- 2.Rd4#
- 1...c5
- 2.Bb7#
- threat
- 1.Sc2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 1
- Sets
- P(g);N_GUARD::QAB1(D)
- Tries
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- B(a);XS(B)::R1(E)
- B(d);::R1(E)
- B(d);N_GUARD::S(B)
- B(d);OGATE,SBLOCK::QAB1(D)
- P(g);::R1(E)
- Refutation
- B(d);
- Try
- S(B);
- Threat
- R1(E)
- Vars
- B(d);N_GUARD::S(B)
- P(f);OGATEB::B(C)
- Refutation
- B(d);
- Try
- S(B);
- Threat
- R1(E)
- Vars
- P(f);OGATEB::B(C)
- Refutation
- B(d);
- Try
- S(B);
- Threat
- R1(E)
- Vars
- B(d);N_GUARD::S(B),XB(d)
- B(d);N_GUARD::S(B)
- P(f);OGATEB::B(C)
- Refutation
- B(d);
- Try
- S(B);
- Threat
- R1(E)
- Vars
- B(d);N_GUARD::S(B),XB(d)
- P(f);OGATEB::B(C)
- Refutation
- B(d);
- Try
- S(B);
- Threat
- DUALS(2)
- Vars
- P(h);XS(B)::R1(E)
- B(d);::R1(E)
- B(d);N_GUARD::S(B)
- P(g);::R1(E)
- Refutation
- B(d);
- Try
- Q(D);CHECK,XP(g)
- Vars
- P(h);P_SPINP(h)::QAB1(D),XP(h)
- Refutation
- P(h);XQ(D)
- Try
- Actual
- S(B);
- Threat
- R1(E)
- Vars
- B(d);N_GUARD::R1(A),XB(d)
- B(d);N_GUARD::R1(A)
- B(d);::R1(A)
- P(f);OGATEB::B(C)
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