MESON Chess Problem Database
Problem Display
PID: 57735 (5RQr/1p5p/3K3B/1NnpN3/R1prk3/1q1p4/2B2n2/5b2 w - - 0 1)
Dimitrov, Nikolai
Chess Life, 1957
#2
8 + 12
SOLUTION
- SOUND
- Sets
- 1...Qa2
- 2.Sc3#
- 1...Qxa4
- 2.Sc3#
- 1...Qb1
- 2.Sc3#
- 1...Qc3
- 2.Sxc3#
- 1...Bg2
- 2.Qxg2#
- 1...Sd1
- 2.Qg4#
- 1...Sh1
- 2.Qg4#
- 1...Sg4
- 2.Qxg4#
- 1...c3
- 2.Rxd4#
- 1...Qa2
- Tries
- 1.Sg4?
- threat
- 2.Sxf2#
- 2.Rf4#
- 1...Qxc2
- 2.Rf4#
- 1...Sxg4
- 2.Qxg4#
- 1...dxc2
- 2.Sxf2#
- 1...Sd1
- 2.Rf4#
- 1...Sh1
- 2.Rf4#
- 1...Se6
- 2.Sxf2#
- 2.Qxe6#
- 1...Sh3!
- threat
- 1.Bxb3?
- threat
- 2.Sc3#
- 1...Sd1
- 2.Qg4#
- 1...c3
- 2.Sxc3#
- 2.Bxd5#
- 2.Rxd4#
- 2.Qxd5#
- 1...Sxa4!
- threat
- 1.Qf7?
- threat
- 2.Qf3#
- 2.Qf4#
- 2.Qf5#
- 1...dxc2
- 2.Qf4#
- 2.Qf5#
- 1...Sh3
- 2.Qf3#
- 2.Qf5#
- 1...Be2
- 2.Qf4#
- 2.Qf5#
- 1...Bg2
- 2.Qf4#
- 2.Qf5#
- 1...Bh3
- 2.Qf3#
- 2.Qf4#
- 1...Se6
- 2.Qf3#
- 2.Qf5#
- 1...Rxf8!
- threat
- 1.Qg3?
- threat
- 2.Rf4#
- 2.Qf4#
- 2.Qe3#
- 2.Qf3#
- 1...dxc2
- 2.Rf4#
- 2.Qf4#
- 1...Sh3
- 2.Qe3#
- 2.Qf3#
- 1...Be2
- 2.Rf4#
- 2.Qf4#
- 2.Qe3#
- 1...Bg2
- 2.Rf4#
- 2.Qf4#
- 2.Qxg2#
- 2.Qe3#
- 1...Sd1
- 2.Rf4#
- 2.Qf4#
- 2.Qh4#
- 2.Qf3#
- 2.Qg4#
- 1...Sg4
- 2.Rf4#
- 2.Qf4#
- 2.Qf3#
- 2.Qxg4#
- 1...Se6
- 2.Qe3#
- 2.Qf3#
- 1...Rxf8!
- threat
- 1.Qg5?
- threat
- 2.Qe3#
- 2.Qf4#
- 2.Qf5#
- 1...dxc2
- 2.Qf4#
- 2.Qf5#
- 1...Sh3
- 2.Qe3#
- 2.Qf5#
- 1...Bh3
- 2.Qe3#
- 2.Qf4#
- 1...Sd1
- 2.Qf4#
- 2.Qh4#
- 2.Qg4#
- 2.Qf5#
- 1...Sg4
- 2.Qf4#
- 2.Qxg4#
- 2.Qf5#
- 1...Se6
- 2.Qe3#
- 2.Qf5#
- 1...Rxf8!
- threat
- 1.Sg4?
- Keys
- 1.Sxd3!
- threat
- 2.Sxf2#
- 2.Sxc5#
- 1...Qxc2
- 2.Sxc5#
- 1...Qxd3
- 2.Sc3#
- 1...Rxd3
- 2.Qxd5#
- 1...Bxd3
- 2.Qg2#
- 1...Sfxd3
- 2.Qg4#
- 1...Scxd3
- 2.Qe6#
- 1...Sxa4
- 2.Sxf2#
- 2.Sc5#
- 2.Qe6#
- 1...cxd3
- 2.Rxd4#
- 1...Sd1
- 2.Sf2#
- 2.Sxc5#
- 2.Qg4#
- 1...Sh1
- 2.Sf2#
- 2.Sxc5#
- 2.Qg4#
- 1...Sh3
- 2.Sf2#
- 2.Sxc5#
- 1...Sg4
- 2.Sf2#
- 2.Sxc5#
- 2.Qxg4#
- 1...Sa6
- 2.Sxf2#
- 2.Sc5#
- 2.Qe6#
- 1...Se6
- 2.Sxf2#
- 2.Sc5#
- 2.Qxe6#
- 1...Sd7
- 2.Sxf2#
- 2.Sc5#
- threat
- 1.Sxd3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 9
- Sets
- Q(c);N_GUARD::S(C)
- Q(c);N_GUARD,XR(B)::S(C)
- Q(c);N_GUARD::S(C),XQ(c)
- B(a);N_GUARD::QAB(H),XB(a)
- S(b);N_GUARD::QAR2(H)
- S(b);N_GUARD::QAR2(H),XS(b)
- P(e);OGATE,P_SPINR(f)::R1(B),XR(f)
- Tries
- Try
- S(D);
- Threat
- DUALS(2)
- Vars
- Q(c);N_SPINP(d),XB(A)::R1(G)
- S(b);OGATE,XS(D)::QAR2(H),XS(b)
- P(d);N_SPINP(d),XB(A)::S(D),XS(b)
- S(b);::R1(G)
- Refutation
- S(b);
- Try
- B(A);N_PINP(d),XQ(c)
- Threat
- S(C)
- Vars
- S(b);N_GUARD::QAR2(H)
- Refutation
- S(h);XR(B)
- Try
- Q(H);
- Threat
- DUALS(3)
- Refutation
- R(l);XR(G)
- Try
- Q(H);
- Threat
- DUALS(4)
- Refutation
- R(l);XR(G)
- Try
- Q(H);
- Threat
- DUALS(3)
- Refutation
- R(l);XR(G)
- Try
- Actual
- S(D);XP(d)
- Threat
- DUALS(2)
- Vars
- Q(c);XB(A)::S(D),XS(h)
- Q(c);N_GUARD,P_SPINQ(c),XS(D)::S(C)
- R(f);N_GUARD,P_SPINP(e),P_SPINR(f),XS(D)::QAB1(H),XP(i)
- B(a);N_GUARD,P_SPINB(a),XS(D)::QAB(H)
- S(b);N_GUARD,P_SPINS(b),XS(D)::QAR2(H)
- S(h);N_GUARD,P_SPINS(h),XS(D)::QAR2(H)
- P(e);OGATE,P_SPINP(e),P_SPINR(f),XS(D)::R1(B),XR(f)
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