MESON Chess Problem Database
Problem Display
PID: 54385 (5q2/8/2R1Pp1b/3B4/2pk3r/R1Np1Q1p/br3p1B/5N1K w - - 0 1)
Bourd, Evgeny
StrateGems, 2004
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Qxa3
- 2.Qxf6#
- 1...Qb4
- 2.Qxf6#
- 1...Qc5
- 2.Qxf6#
- 1...Qa8
- 2.Qxf6#
- 1...Qc8
- 2.Qxf6#
- 1...Qe8
- 2.Qxf6#
- 1...Qg8
- 2.Qxf6#
- 1...Rc2
- 2.Sb5#
- 1...Rd2
- 2.Sb5#
- 1...Re2
- 2.Sb5#
- 1...Rb3
- 2.Rxc4#
- 1...Rb5
- 2.Sxb5#
- 1...Re4
- 2.Qxe4#
- 1...Rf4
- 2.Qe3#
- 1...Rh5
- 2.Qe4#
- 1...Bb1
- 2.Rxc4#
- 1...Bb3
- 2.Sb5#
- 1...Be3
- 2.Qxe3#
- 1...Bf4
- 2.Qe4#
- 1...Bg7
- 2.Qe3#
- 1...d2
- 2.Se2#
- 1...Qxa3
- Tries
- 1.Bf4?
- threat
- 2.Qe4#
- 2.Qe3#
- 1...Rxf4
- 2.Qe3#
- 1...Bxf4
- 2.Qe4#
- 1...Rb3
- 2.Rxc4#
- 1...Bb3
- 2.Sb5#
- 1...Re2
- 2.Sb5#
- 1...f5
- 2.Qe3#
- 1...Qxa3!
- threat
- 1.Bxc4?
- threat
- 2.Qd5#
- 2.Qxd3#
- 1...Qxa3
- 2.Qxd3#
- 2.Qxf6#
- 1...Qc5
- 2.Qxd3#
- 1...Rb3
- 2.Qxd3#
- 1...Rf4
- 2.Qd5#
- 2.Qe3#
- 1...Bb3
- 2.Sb5#
- 2.Qxd3#
- 1...Bf4
- 2.Qe4#
- 2.Qd5#
- 1...Qd6
- 2.Qxd3#
- 1...Qd8
- 2.Qxd3#
- 1...Rd2
- 2.Sb5#
- 2.Qd5#
- 1...Rb5
- 2.Sxb5#
- 2.Qxd3#
- 1...Re4
- 2.Qxe4#
- 2.Qxd3#
- 1...Rh5
- 2.Qe4#
- 2.Qxd3#
- 1...Bb1
- 2.Qd5#
- 1...Be3
- 2.Qd5#
- 2.Qxe3#
- 1...d2
- 2.Se2#
- 2.Qd5#
- 2.Qd3#
- 1...Bxc4!
- threat
- 1.Qxf2+?
- 1...Be3
- 2.Qxe3#
- 1...Rxf2!
- 1...Be3
- 1.Bf4?
- Keys
- 1.Rb3!
- threat
- 2.Sb5#
- 2.Rxc4#
- 1...Rxb3
- 2.Rxc4#
- 1...Bxb3
- 2.Sb5#
- 1...cxb3
- 2.Sb5#
- 2.Rc4#
- 1...Rf4
- 2.Qe3#
- 1...Bf4
- 2.Qe4#
- 1...Qb4
- 2.Qxf6#
- 1...Qc5
- 2.Qxf6#
- 1...Qb8
- 2.Rxc4#
- 1...Qc8
- 2.Sb5#
- 2.Qxf6#
- 1...Re4
- 2.Rxc4#
- 2.Qxe4#
- threat
- 1.Rb3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 15
- Sets
- Q(k);N_GUARD,XR(D)::QAB(F),XP(i)
- Q(k);N_GUARD::QAB(F),XP(i)
- R(b);N_GUARD::S(E)
- R(b);S_CUTB(a)::R1(H),XP(f)
- R(b);N_GUARD::S(E),XR(b)
- R(h);N_GUARD::QAR1(F),XR(h)
- R(h);S_CUTB(j)::QAB1(F)
- R(h);N_GUARD::QAR1(F)
- B(a);N_GUARD::R1(H),XP(f)
- B(a);S_CUTR(b)::S(E)
- B(j);N_GUARD::QAB1(F),XB(j)
- B(j);S_CUTR(h)::QAR1(F)
- B(j);N_GUARD::QAB1(F)
- P(d);N_GUARD,S_CUTR(b)::S(E)
- Tries
- Try
- B(C);
- Threat
- DUALS(2)
- Vars
- R(h);XB(C)::QAB1(F)
- B(j);XB(C)::QAR1(F)
- R(b);S_CUTB(a)::R1(H),XP(f)
- B(a);S_CUTR(b)::S(E)
- R(b);N_GUARD::S(E)
- P(i);::QAB1(F)
- Refutation
- Q(k);XR(D)
- Try
- B(G);XP(f)
- Threat
- DUALS(2)
- Vars
- Q(k);::QAR1(F),XP(d)
- R(b);::QAR1(F),XP(d)
- B(a);::QAR1(F)
- Refutation
- B(a);XB(G)
- Try
- Q(F);CHECK,XP(c)
- Vars
- B(j);N_GUARD,P_SPINB(j)::QAB1(F),XB(j)
- Refutation
- R(b);XQ(F)
- Try
- Actual
- R(D);
- Threat
- DUALS(2)
- Vars
- R(b);XR(D)::R1(H),XP(f)
- B(a);XR(D)::S(E)
- R(h);S_CUTB(j)::QAB1(F)
- B(j);S_CUTR(h)::QAR1(F)
- Q(k);N_GUARD::QAB(F),XP(i)
- Q(k);::R1(H),XP(f)
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