MESON Chess Problem Database
Problem Display
PID: 7246 (n2rR2n/K1p2PPp/1p4br/b2NRB2/3k1p2/Q4p2/1N5q/8 w - - 0 1)
Pankratiev, Aleksandr Nikolaevich
5th Comm., KNSB-125 JT, 1999
#2
9 + 13
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.Re4#
- 1...Bc3
- 2.Qxc3#
- 1...Bb4
- 2.Qxb4#
- 1...c5
- 2.Qd3#
- 1...Rxd5
- Tries
- 1.Sb4?
- threat
- 2.Sc6#
- 2.Qd3#
- 1...Qxb2
- 2.Qd3#
- 1...Rxe8
- 2.Sc6#
- 2.Rd5#
- 1...Bxb4
- 2.Qxb4#
- 2.Qd3#
- 1...Bxf7
- 2.Qd3#
- 1...Rd5
- 2.Sc6#
- 2.Rxd5#
- 1...Qc2
- 2.Sxc2#
- 1...Qd2
- 2.Sc6#
- 1...Qe2
- 2.Sc6#
- 1...Rd6
- 2.Qd3#
- 1...Bh5
- 2.Qd3#
- 1...c6
- 2.Sxc6#
- 2.Qd3#
- 1...Bxf5!
- threat
- 1.Sxf4?
- threat
- 2.Re4#
- 2.Qd3#
- 2.Qe3#
- 1...Qxf4
- 2.Qd3#
- 1...Qxb2
- 2.Re4#
- 2.Qd3#
- 1...Rxe8
- 2.Rd5#
- 2.Qe3#
- 1...Bxf5
- 2.Qe3#
- 1...Qg1
- 2.Re4#
- 2.Qd3#
- 1...Qc2
- 2.Qe3#
- 1...Qd2
- 2.Re4#
- 1...Qf2
- 2.Re4#
- 2.Qd3#
- 1...Rd5
- 2.Re4#
- 2.Rxd5#
- 2.Qe3#
- 1...Bd2
- 2.Re4#
- 2.Qd3#
- 1...Bc3
- 2.Re4#
- 1...Bb4
- 2.Qxb4#
- 2.Qd3#
- 2.Qe3#
- 1...Qe2!
- threat
- 1.Sxc7?
- threat
- 2.Sb5#
- 2.Re4#
- 2.Qd3#
- 1...Qxb2
- 2.Re4#
- 2.Qd3#
- 1...Rxe8
- 2.Rd5#
- 1...Bxf5
- 2.Sb5#
- 1...Sxc7
- 2.Qd3#
- 1...Qc2
- 2.Sb5#
- 1...Qd2
- 2.Sb5#
- 2.Re4#
- 1...Rd5
- 2.Re4#
- 2.Rxd5#
- 1...Rd7
- 2.Re4#
- 2.Qd3#
- 1...Bc3
- 2.Sb5#
- 2.Re4#
- 1...Bb4
- 2.Sb5#
- 2.Qxb4#
- 2.Qd3#
- 1...b5
- 2.Sxb5#
- 2.Re4#
- 2.Qc5#
- 2.Qd3#
- 1...Qe2!
- threat
- 1.Se7?
- threat
- 2.Sc6#
- 2.Re4#
- 1...Kxe5
- 2.gxh8Q#
- 2.gxh8B#
- 1...Qxb2
- 2.Re4#
- 1...Bxf5
- 2.Sxf5#
- 1...Bxf7
- 2.Re4#
- 1...Qe2
- 2.Sc6#
- 1...Rd6
- 2.Re4#
- 1...Bb4
- 2.Sc6#
- 1...Bh5
- 2.Re4#
- 1...c6
- 2.Sxc6#
- 2.Re4#
- 1...Qc2!
- threat
- 1.Qa4+?
- 1...Bb4
- 2.Qxb4#
- 1...Kc5!
- 1...Bb4
- 1.Sb4?
- Keys
- 1.Se3!
- threat
- 2.Re4#
- 2.Qd3#
- 1...Rxe8
- 2.Rd5#
- 1...Bxf5
- 2.Sxf5#
- 1...fxe3
- 2.Qd3#
- 2.Qxe3#
- 1...Qc2
- 2.Sxc2#
- 1...Qd2
- 2.Re4#
- 1...Qe2
- 2.Re4#
- 1...Rd5
- 2.Re4#
- 2.Rxd5#
- 1...Bc3
- 2.Re4#
- 1...Bb4
- 2.Qxb4#
- 2.Qd3#
- threat
- 1.Se3!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 5
- REMOVED MATES = 3
- Sets
- R(l);SBLOCK,XS(C)::R1(D)
- B(e);N_GUARD::QAB1(B),XB(e)
- B(e);N_GUARD::QAR2(B),XB(e)
- P(i);SBLOCK::QAR1(B)
- Tries
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- Q(a);XS(A)::QAR1(B)
- B(g);XP(G)::QAR1(B)
- Q(a);N_GUARD::S(C),XQ(a)
- Q(a);::S(C)
- R(l);::QAR1(B)
- B(g);::QAR1(B)
- Refutation
- B(g);XB(E)
- Try
- S(C);XP(d)
- Threat
- DUALS(3)
- Vars
- Q(a);XS(C)::QAR1(B)
- B(g);XB(E)::QAB1(B)
- Q(a);::QAB1(B)
- Q(a);::R1(D)
- B(e);::R1(D)
- Refutation
- Q(a);
- Try
- S(C);XP(i)
- Threat
- DUALS(3)
- Vars
- R(l);N_GUARD,XR(I)::R1(D)
- B(g);XB(E)::S(C)
- S(k);XS(C)::QAR1(B)
- Q(a);::S(C)
- Refutation
- Q(a);
- Try
- S(C);
- Threat
- DUALS(2)
- Vars
- K(c);S_FLIGHT,XR(D)::PXS(m)=Q
- Q(a);XS(A)::R1(D)
- B(g);XB(E)::S(C),XB(g)
- B(g);XP(G)::R1(D)
- Q(a);::S(C)
- R(l);::R1(D)
- B(e);::S(C)
- B(g);::R1(D)
- Refutation
- Q(a);
- Try
- Q(B);CHECK
- Vars
- B(e);N_GUARD,P_SPINB(e)::QAR2(B),XB(e)
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- S(C);
- Threat
- DUALS(2)
- Vars
- R(l);N_GUARD,XR(I)::R1(D)
- B(g);XB(E)::S(C),XB(g)
- Q(a);N_GUARD::S(C),XQ(a)
- Q(a);::R1(D)
- B(e);::R1(D)
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