MESON Chess Problem Database
Problem Display
PID: 137584 (4n3/4n3/8/2K3RN/4k3/2p1r1p1/6N1/B2Q4 w - - 0 1)
Zabunov, Vladimir N
3rd HM., BCF 110. Ty., 1965-1966
#2
6 + 6
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Sxg3#
- 1...Re2
- 2.Qxe2#
- 1...Rd3
- 2.Qg4#
- 1...Rf3
- 2.Qd4#
- 1...Sd5
- 2.Qxd5#
- 1...Sf5
- 2.Qd5#
- 1...Sc6
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Sd6
- 2.Sf6#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...c2
- 2.Re5#
- 1...Re1
- Tries
- 1.Kc4?
- threat
- 2.Qg4#
- 1...Re2
- 2.Qxe2#
- 2.Qd3#
- 1...Sf5
- 2.Qd5#
- 1...Rf3
- 2.Qd4#
- 1...Sd5
- 2.Qxd5#
- 1...Sg6
- 2.Qd5#
- 1...Sf6
- 2.Sxf6#
- 1...Sd6+!
- threat
- 1.Se1?
- threat
- 2.Qa4#
- 2.Qg4#
- 2.Qd4#
- 1...Re2
- 2.Qxe2#
- 2.Qd3#
- 2.Qd4#
- 1...Rd3
- 2.Qxd3#
- 1...Rf3
- 2.Qxf3#
- 2.Qd4#
- 1...Sf5
- 2.Qd5#
- 1...Sd5
- 2.Qd4#
- 2.Qxd5#
- 1...Sc6
- 2.Qg4#
- 2.Qd5#
- 1...Sg6
- 2.Qa4#
- 2.Qd4#
- 2.Qd5#
- 1...Sd6
- 2.Qg4#
- 2.Qd4#
- 1...Sf6
- 2.Qa4#
- 2.Qd4#
- 1...c2
- 2.Re5#
- 2.Qg4#
- 2.Qd4#
- 1...Rxe1!
- threat
- 1.Sh4?
- threat
- 2.Qd4#
- 1...Sf5
- 2.Qd5#
- 1...Sc6
- 2.Qd5#
- 1...Rd3!
- threat
- 1.Bb2?
- 1...Re2
- 2.Qxe2#
- 1...Sf5
- 2.Qd5#
- 1...Sd6
- 2.Sf6#
- 1...Re1
- 2.Sxg3#
- 1...Rd3
- 2.Qg4#
- 1...Rf3
- 2.Qd4#
- 1...Sd5
- 2.Qxd5#
- 1...Sc6
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Sc8
- 2.Qd5#
- 1...Sg8
- 2.Qd5#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...c2
- 2.Re5#
- 1...cxb2!
- 1...Re2
- 1.Bxc3?
- threat
- 2.Re5#
- 1...Re2
- 2.Qxe2#
- 1...Sf5
- 2.Rg4#
- 2.Qd5#
- 1...Sc6
- 2.Qd5#
- 1...Sg6
- 2.Qd5#
- 1...Rxc3+!
- threat
- 1.Rd5?
- threat
- 2.Qg4#
- 1...Sxd5
- 2.Qxd5#
- 1...Re2
- 2.Qxe2#
- 2.Qd3#
- 1...Rf3
- 2.Qa4#
- 2.Qd4#
- 1...Sf6
- 2.Sxf6#
- 1...Sg6!
- threat
- 1.Qc2+?
- 1...Kf3
- 2.Sh4#
- 2.Rxg3#
- 1...Rd3!
- 1...Kf3
- 1.Kc4?
- Keys
- 1.Qf1!
- 1...Re2
- 2.Qxe2#
- 1...Sf5
- 2.Qxf5#
- 1...Sd6
- 2.Sf6#
- 1...Re1
- 2.Sxg3#
- 1...Rd3
- 2.Qf4#
- 1...Rf3
- 2.Qc4#
- 1...Sd5
- 2.Qf5#
- 1...Sc6
- 2.Qf5#
- 1...Sg6
- 2.Qf5#
- 1...Sc8
- 2.Qf5#
- 1...Sg8
- 2.Qf5#
- 1...Sf6
- 2.Sxf6#
- 1...Sc7
- 2.Sf6#
- 1...Sg7
- 2.Sf6#
- 1...c2
- 2.Rg4#
- 2.Re5#
- 1...Re2
- 1.Qf1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 8
- ADDED MATES = 0
- REMOVED MATES = 1
- Sets
- R(b);N_GUARD::S(F),XP(c)
- R(b);OGATEB::QAR2(B),XR(b)
- R(b);SBLOCK::QAR2(B)
- R(b);SBLOCK::QAR1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- S(e);N_GUARD::QAB1(B)
- S(f);N_GUARD::S(F)
- S(f);N_GUARD::S(F),XS(f)
- P(a);::R1(E)
- Tries
- Try
- K(D);P-FLIGHT
- Threat
- QAR2(B)
- Vars
- S(e);N_GUARD::QAB1(B)
- R(b);SBLOCK::QAR1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- S(f);N_GUARD::S(F),XS(f)
- Refutation
- S(f);CHECK
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- R(b);N_GUARD::QAB1(B),XR(b)
- S(e);N_GUARD::QAB1(B)
- Refutation
- R(b);XS(C)
- Try
- S(C);
- Threat
- QAR1(B)
- Vars
- S(e);N_GUARD::QAB1(B)
- Refutation
- R(b);
- Try
- B(A);
- Vars
- R(b);OGATEB::QAR2(B),XR(b)
- S(e);N_GUARD::QAB1(B)
- S(f);N_GUARD::S(F)
- R(b);N_GUARD::S(F),XP(c)
- R(b);SBLOCK::QAR2(B)
- R(b);SBLOCK::QAR1(B)
- S(e);N_GUARD::QAB1(B),XS(e)
- S(f);N_GUARD::S(F),XS(f)
- P(a);::R1(E)
- Refutation
- P(a);XB(A)
- Try
- B(A);XP(a)
- Threat
- R1(E)
- Vars
- R(b);OGATEB::QAR2(B),XR(b)
- S(e);N_GUARD::QAB1(B)
- Refutation
- R(b);CHECK,XB(A)
- Try
- R(E);
- Threat
- QAR2(B)
- Vars
- S(e);OGATE,XR(E)::QAB1(B),XS(e)
- S(f);N_GUARD::S(F),XS(f)
- Refutation
- S(e);
- Try
- Q(B);CHECK
- Refutation
- R(b);P_SPINR(b)
- Try
- Actual
- Q(B);
- Vars
- R(b);OGATEB::QAR2(B),XR(b)
- S(e);N_GUARD::QAB1(B),XS(e)
- S(f);N_GUARD::S(F)
- R(b);N_GUARD::S(F),XP(c)
- R(b);SBLOCK::QAR1(B)
- R(b);SBLOCK::QAR2(B)
- S(e);N_GUARD::QAB1(B)
- S(f);N_GUARD::S(F),XS(f)
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