MESON Chess Problem Database
Problem Display
PID: 58282 (2R1N2B/1K1p4/1p5p/bp1k3r/3pN1Qp/7B/b2n4/3r3q w - - 0 1)
Stoyanov, Kiril N
Skakbladet, 2005
#2
7 + 13
SOLUTION
- SOUND
- Sets
- 1...Qxe4
- 2.Qxd7#
- 1...Re5
- 2.S4f6#
- 2.S8f6#
- 1...Rf5
- 2.Qxf5#
- 1...Bc4
- 2.Sc7#
- 1...Sc4
- 2.Sc7#
- 1...Sxe4
- 2.Qg8#
- 1...d6
- 2.Qe6#
- 1...Qxe4
- Tries
- 1.Sxd2?
- threat
- 2.Qxh5#
- 2.Qxd7#
- 2.Qxd4#
- 2.Qg8#
- 1...Qxh3
- 2.Qe4#
- 1...Bxd2
- 2.Qxd4#
- 1...Rf5
- 2.Qxf5#
- 1...Qg2
- 2.Bxg2#
- 2.Qxd7#
- 2.Qxg2#
- 2.Qxd4#
- 1...Qf3
- 2.Qxf3#
- 2.Qxd7#
- 2.Qxd4#
- 1...Qe4
- 2.Qxd7#
- 2.Qxe4#
- 1...Qe1
- 2.Qxd7#
- 2.Qxd4#
- 1...Qf1
- 2.Qxd7#
- 2.Qxd4#
- 2.Qe4#
- 1...Qg1
- 2.Qf3#
- 2.Qxd7#
- 2.Qe4#
- 1...Qh2
- 2.Qf3#
- 2.Qxd4#
- 2.Qe4#
- 2.Qg8#
- 1...Re1
- 2.Qxd7#
- 2.Qxd4#
- 1...Rf1
- 2.Qxd7#
- 2.Qxd4#
- 1...Rg1
- 2.Qxd7#
- 2.Qxd4#
- 1...Re5
- 2.Qxd7#
- 1...Rg5
- 2.Qxd7#
- 2.Qxd4#
- 1...Bb1
- 2.Qxd7#
- 2.Qxd4#
- 2.Qg8#
- 1...Bc3
- 2.Qxh5#
- 2.Qxd7#
- 2.Qg8#
- 1...Bb4
- 2.Qxh5#
- 2.Qxd4#
- 2.Qg8#
- 1...d3
- 2.Qxh5#
- 2.Qxd7#
- 2.Qd4#
- 2.Qg8#
- 1...d6
- 2.Qxh5#
- 2.Qe6#
- 2.Qxd4#
- 2.Qg8#
- 1...Rxd2!
- threat
- 1.Sf2?
- threat
- 2.Qxh5#
- 2.Qxd7#
- 2.Qxd4#
- 2.Qg8#
- 1...Rf5
- 2.Qxf5#
- 1...Qg2
- 2.Qxd7#
- 2.Qxd4#
- 1...Qf3
- 2.Qxd7#
- 2.Qxd4#
- 1...Qe4
- 2.Qxd7#
- 1...Qe1
- 2.Qxd7#
- 2.Qxd4#
- 1...Qg1
- 2.Qxd7#
- 2.Qxd4#
- 1...Qh2
- 2.Qxd4#
- 2.Qg8#
- 1...Re1
- 2.Qxd7#
- 2.Qxd4#
- 1...Rg1
- 2.Qxd7#
- 2.Qxd4#
- 1...Re5
- 2.Qxd7#
- 1...Rg5
- 2.Qxd7#
- 2.Qxd4#
- 1...Bb1
- 2.Qxd7#
- 2.Qxd4#
- 2.Qg8#
- 1...Bc3
- 2.Qxh5#
- 2.Qxd7#
- 2.Qg8#
- 1...Bb4
- 2.Qxh5#
- 2.Qxd4#
- 2.Qg8#
- 1...Sb1
- 2.Qxh5#
- 2.Qxd7#
- 2.Qg8#
- 1...Sf1
- 2.Qxh5#
- 2.Qxd7#
- 2.Qg8#
- 1...Sb3
- 2.Qxh5#
- 2.Qxd7#
- 2.Qg8#
- 1...Sf3
- 2.Qxd7#
- 2.Qe4#
- 2.Qg8#
- 1...Sc4
- 2.Qg8#
- 1...Se4
- 2.Qg8#
- 1...d3
- 2.Qxh5#
- 2.Qxd7#
- 2.Qd4#
- 2.Qg8#
- 1...d6
- 2.Qxh5#
- 2.Qe6#
- 2.Qxd4#
- 2.Qg8#
- 1...Qxh3!
- threat
- 1.Sc3+?
- 1...dxc3
- 2.Qd4#
- 1...Bxc3!
- 1...dxc3
- 1.Sg3?
- threat
- 2.Qxh5#
- 2.Qxd7#
- 2.Qxd4#
- 2.Qg8#
- 1...hxg3
- 2.Qxd4#
- 1...Rf5
- 2.Qxf5#
- 1...Qf3
- 2.Qxd7#
- 2.Qxd4#
- 1...Qe4
- 2.Qxd7#
- 1...Qe1
- 2.Qxd7#
- 2.Qxd4#
- 1...Qf1
- 2.Qxd7#
- 2.Qxd4#
- 1...Qg1
- 2.Qxh5#
- 2.Qxd7#
- 2.Qg8#
- 1...Re1
- 2.Qxd7#
- 2.Qxd4#
- 1...Rf1
- 2.Qxd7#
- 2.Qxd4#
- 1...Re5
- 2.Qxd7#
- 1...Rg5
- 2.Qxd7#
- 2.Qxd4#
- 1...Bb1
- 2.Qxd7#
- 2.Qxd4#
- 2.Qg8#
- 1...Bc3
- 2.Qxh5#
- 2.Qxd7#
- 2.Qg8#
- 1...Bb4
- 2.Qxh5#
- 2.Qxd4#
- 2.Qg8#
- 1...Sb1
- 2.Qxh5#
- 2.Qxd7#
- 2.Qg8#
- 1...Sf1
- 2.Qxh5#
- 2.Qxd7#
- 2.Qg8#
- 1...Sb3
- 2.Qxh5#
- 2.Qxd7#
- 2.Qg8#
- 1...Sf3
- 2.Qxd7#
- 2.Qe4#
- 2.Qg8#
- 1...Sc4
- 2.Qg8#
- 1...Se4
- 2.Qg8#
- 1...d3
- 2.Qxh5#
- 2.Qxd7#
- 2.Qd4#
- 2.Qg8#
- 1...d6
- 2.Qxh5#
- 2.Qe6#
- 2.Qxd4#
- 2.Qg8#
- 1...Qxh3!
- threat
- 1.Sg5?
- threat
- 2.Qf5#
- 2.Qxd7#
- 2.Qxd4#
- 1...Qxh3
- 2.Qxd4#
- 1...Rxg5
- 2.Qxd4#
- 1...hxg5
- 2.Qf5#
- 2.Qxd4#
- 1...Qf3
- 2.Qxd7#
- 2.Qxd4#
- 1...Qe4
- 2.Qxd7#
- 1...Qe1
- 2.Qxd7#
- 2.Qxd4#
- 1...Qf1
- 2.Qxd7#
- 2.Qxd4#
- 1...Qg1
- 2.Qf5#
- 2.Qxd7#
- 1...Qh2
- 2.Qxd4#
- 1...Re1
- 2.Qxd7#
- 2.Qxd4#
- 1...Rf1
- 2.Qxd7#
- 2.Qxd4#
- 1...Bb1
- 2.Qxd7#
- 2.Qxd4#
- 1...Bc3
- 2.Qf5#
- 2.Qxd7#
- 1...Bb4
- 2.Qf5#
- 2.Qxd4#
- 1...Sb1
- 2.Qf5#
- 2.Qxd7#
- 1...Sf1
- 2.Qf5#
- 2.Qxd7#
- 1...Sb3
- 2.Qf5#
- 2.Qxd7#
- 1...Sf3
- 2.Qxd7#
- 2.Qe4#
- 1...Se4
- 2.Qf5#
- 1...d3
- 2.Qf5#
- 2.Qxd7#
- 2.Qd4#
- 1...d6
- 2.Qf5#
- 2.Qe6#
- 2.Qxd4#
- 1...Sc4!
- threat
- 1.Rc6?
- threat
- 2.Sc7#
- 1...dxc6
- 2.Qe6#
- 1...Qh2!
- threat
- 1.Qf4?
- threat
- 2.S4f6#
- 2.S8f6#
- 1...Qxe4
- 2.Sf6#
- 2.Qd6#
- 1...Sxe4
- 2.Qf7#
- 1...Rf5
- 2.Qxf5#
- 1...d3
- 2.S4f6#
- 1...Qxh3!
- threat
- 1.Sxd2?
- Keys
- 1.Qe2!
- threat
- 2.S4f6#
- 2.Sc7#
- 1...Qxe4
- 2.Qxb5#
- 1...Sxe4
- 2.Qxa2#
- 1...Rf5
- 2.Sc7#
- 1...Qf3
- 2.Sc7#
- 1...Qf1
- 2.Sc7#
- 1...Qh2
- 2.S4f6#
- 1...Rc1
- 2.S4f6#
- 1...Rf1
- 2.Sc7#
- 1...d3
- 2.Qxd3#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 6
- REMOVED MATES = 3
- Sets
- Q(b);SBLOCK,XS(B)::QAR2(C),XP(m)
- R(j);N_GUARD::QAR2(C),XR(j)
- B(c);SBLOCK::S(F)
- S(d);SBLOCK::S(F)
- S(d);SBLOCK,XS(B)::QAB(C)
- P(m);N_GUARD::QAB1(C)
- Tries
- Try
- S(B);XS(d)
- Threat
- DUALS(4)
- Vars
- Q(b);N_GUARD,XB(A)::QAB1(C)
- B(g);XS(B)::QAR1(C),XP(e)
- R(j);N_GUARD::QAR2(C),XR(j)
- R(j);::QAR2(C),XP(m)
- Refutation
- R(a);XS(B)
- Try
- S(B);
- Threat
- DUALS(4)
- Vars
- R(j);N_GUARD::QAR2(C),XR(j)
- Q(b);::QAR2(C),XP(m)
- R(j);::QAR2(C),XP(m)
- S(d);::QAB(C)
- Refutation
- Q(b);XB(A)
- Try
- S(B);CHECK
- Vars
- P(e);XS(B)::QAR1(C)
- Refutation
- B(g);XS(B)
- Try
- S(B);
- Threat
- DUALS(4)
- Vars
- P(f);XS(B)::QAR1(C),XP(e)
- R(j);N_GUARD::QAR2(C),XR(j)
- Q(b);::QAR2(C),XP(m)
- R(j);::QAR2(C),XP(m)
- S(d);::QAB(C)
- Refutation
- Q(b);XB(A)
- Try
- S(B);
- Threat
- DUALS(3)
- Vars
- Q(b);XB(A)::QAR1(C),XP(e)
- R(j);XS(B)::QAR1(C),XP(e)
- Q(b);::QAR2(C),XP(m)
- Q(b);::QAR1(C),XP(e)
- S(d);::QAR2(C)
- Refutation
- S(d);
- Try
- R(E);
- Threat
- S(F)
- Vars
- P(m);N_GUARD,XR(E)::QAB1(C)
- Refutation
- Q(b);
- Try
- Q(C);
- Threat
- DUALS(2)
- Vars
- S(d);SBLOCK,XS(B)::QAB(C)
- R(j);N_GUARD::QAR2(C),XR(j)
- P(e);::S(B)
- Refutation
- Q(b);XB(A)
- Try
- Actual
- Q(C);
- Threat
- DUALS(2)
- Vars
- Q(b);SBLOCK,XS(B)::QAR2(C),XP(h)
- S(d);OGATE,SBLOCK,XS(B)::QAB(C),XB(c)
- R(j);::S(F)
- Q(b);::S(F)
- Q(b);::S(B)
- R(a);::S(B)
- R(a);::S(F)
- P(e);OGATEB::QAR2(C),XP(e)
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