MESON Chess Problem Database
Problem Display
PID: 139156 (2N5/q2P1n2/4p3/pp4Q1/p1kP3R/7R/1b6/4BK1B w - - 0 1)
Svyatov, Gennadi
Probleemblad, 1974
#2
9 + 8
SOLUTION
- SOUND
- Sets
- 1...Qxd4
- 2.Sb6#
- 1...Qc5
- 2.Qxc5#
- 1...Qb6
- 2.Sxb6#
- 1...Qb8
- 2.Qc5#
- 1...Qa6
- 2.Qc5#
- 1...Qb7
- 2.Qc5#
- 1...Qxd7
- 2.Sb6#
- 2.Qc5#
- 1...Qa8
- 2.Sb6#
- 2.Qc5#
- 1...Bc1
- 2.Qxc1#
- 1...Bxd4
- 2.Qc1#
- 1...Se5
- 2.Sd6#
- 1...Sxg5
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...Sh6
- 2.Sd6#
- 1...Sd8
- 2.Sd6#
- 1...Sh8
- 2.Sd6#
- 1...Qxd4
- Tries
- 1.Bc6?
- threat
- 2.Bxb5#
- 2.Qxb5#
- 1...Qxd7
- 2.Sb6#
- 2.Qxb5#
- 2.Qc5#
- 1...Sxg5
- 2.Sd6#
- 1...Bc3
- 2.Qxb5#
- 1...Qc5
- 2.Qxc5#
- 1...Qb6
- 2.Sxb6#
- 1...Qb8
- 2.Qc5#
- 1...Qa6
- 2.Qc5#
- 1...Qb7
- 2.Qc5#
- 1...Se5
- 2.Sd6#
- 1...Sd6
- 2.Sxd6#
- 1...b4
- 2.Bb5#
- 2.Qb5#
- 1...e5!
- threat
- 1.Qc1+?
- 1...Bc3
- 2.Qxc3#
- 1...Bxc1!
- 1...Bc3
- 1.Qd2?
- threat
- 2.Qe2#
- 2.Qd3#
- 1...Bxd4
- 2.Qc1#
- 2.Qc3#
- 2.Qc2#
- 1...Bc3
- 2.Qxc3#
- 1...Se5
- 2.Sd6#
- 1...Qxd4!
- threat
- 1.Qe3?
- threat
- 2.Qe2#
- 2.Qd3#
- 2.Qxe6#
- 1...Qxd7
- 2.Sb6#
- 2.Qe2#
- 2.Qd3#
- 1...Bxd4
- 2.Qc1#
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...b4
- 2.Qe2#
- 2.Qd3#
- 1...Qc5
- 2.Qe2#
- 2.Qd3#
- 1...Qb6
- 2.Sxb6#
- 2.Qe2#
- 2.Qd3#
- 1...Qa6
- 2.Qe2#
- 2.Qd3#
- 1...Qb7
- 2.Qe2#
- 2.Qd3#
- 1...Qa8
- 2.Sb6#
- 2.Qe2#
- 2.Qd3#
- 1...Se5
- 2.Sd6#
- 1...Sg5
- 2.Sd6#
- 2.Qe2#
- 2.Qd3#
- 1...Sd8
- 2.Sd6#
- 2.Qe2#
- 2.Qd3#
- 1...e5
- 2.Qe2#
- 2.Qd3#
- 1...Qxd4!
- threat
- 1.Qe7?
- threat
- 2.Qxe6#
- 1...Qxd4
- 2.Sb6#
- 1...Qxd7
- 2.Sb6#
- 2.Qc5#
- 1...Bxd4
- 2.Rc3#
- 1...Bc3
- 2.Rxc3#
- 1...Qc5
- 2.Qxc5#
- 1...Qb6
- 2.Sxb6#
- 1...Qa6
- 2.Qc5#
- 1...Qb7
- 2.Qc5#
- 1...Qa8
- 2.Sb6#
- 2.Qc5#
- 1...Sg5
- 2.Sd6#
- 1...Sd8
- 2.Sd6#
- 1...e5
- 2.Qe6#
- 2.Qxf7#
- 1...b4!
- threat
- 1.Qg2?
- threat
- 2.Qe2#
- 1...Qxd4
- 2.Qc6#
- 1...Bxd4
- 2.Qc2#
- 1...Se5
- 2.Sd6#
- 1...Bc3!
- threat
- 1.Bc6?
- Keys
- 1.Qg3!
- threat
- 2.Qd3#
- 1...Qxd4
- 2.Qc7#
- 1...Bxd4
- 2.Qc3#
- 1...Bc3
- 2.Qxc3#
- 1...Se5
- 2.Sd6#
- threat
- 1.Qg3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- Q(g);N_GUARD,P_SPINQ(g),XP(E)::S(I)
- Q(g);N_GUARD::QAR1(G),XQ(g)
- Q(g);N_GUARD::S(I),XQ(g)
- Q(g);N_GUARD::QAR1(G)
- B(a);N_GUARD::QAR(G),XB(a)
- B(a);N_GUARD,P_SPINB(a),XP(E)::QAR(G)
- S(h);N_GUARD::S(I)
- S(h);N_GUARD,XQ(G)::S(I)
- S(h);N_GUARD::S(I),XS(h)
- Tries
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- S(h);N_GUARD,XQ(G)::S(I)
- B(a);::QAB1(G),XP(e)
- Q(g);N_GUARD::QAR1(G),XQ(g)
- Q(g);N_GUARD::S(I),XQ(g)
- Q(g);N_GUARD::QAR1(G)
- S(h);N_GUARD::S(I)
- S(h);N_GUARD::S(I),XS(h)
- Refutation
- P(f);
- Try
- Q(G);CHECK
- Vars
- B(a);N_GUARD,P_SPINB(a)::QAR1(G),XB(a)
- Refutation
- B(a);XQ(G)
- Try
- Q(G);
- Threat
- DUALS(2)
- Vars
- B(a);N_GUARD::QAR1(G),XB(a)
- S(h);N_GUARD::S(I)
- Refutation
- Q(g);P_SPINQ(g),XP(E)
- Try
- Q(G);
- Threat
- DUALS(3)
- Vars
- B(a);N_GUARD::QAR1(G),XB(a)
- S(h);N_GUARD::S(I)
- Refutation
- Q(g);P_SPINQ(g),XP(E)
- Try
- Q(G);
- Threat
- QAB(G),XP(f)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XP(E)::S(I)
- B(a);N_GUARD,P_SPINB(a),XP(E)::R1(D)
- B(a);N_GUARD::R1(D),XB(a)
- Q(g);N_GUARD::QAR1(G),XQ(g)
- Q(g);N_GUARD::S(I),XQ(g)
- Q(g);N_GUARD::QAR1(G)
- S(h);N_GUARD::S(I)
- Refutation
- P(e);
- Try
- Q(G);
- Threat
- QAB(G)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XP(E)::QAR2(G)
- B(a);N_GUARD,P_SPINB(a),XP(E)::QAR2(G)
- S(h);N_GUARD::S(I)
- Refutation
- B(a);
- Try
- Actual
- Q(G);
- Threat
- QAB1(G)
- Vars
- Q(g);N_GUARD,P_SPINQ(g),XP(E)::QAR(G)
- B(a);N_GUARD,P_SPINB(a),XP(E)::QAR1(G)
- B(a);N_GUARD::QAR1(G),XB(a)
- S(h);N_GUARD::S(I)
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