MESON Chess Problem Database
Problem Display
PID: 46162 (7B/bN1b4/8/3rPp2/R2Pkpp1/rQ2Nn1R/1pPp4/1B1K4 w - - 0 1)
Ivanov, Vadim Aleksandrovich
Smedley, Don A
The Problemist, 2002
#2
11 + 11
SOLUTION
- SOUND
- Sets
- 1...Ra1
- 2.Qd3#
- 1...Ra2
- 2.Qd3#
- 1...Rxa4
- 2.Qd3#
- 1...Rxd4
- 2.Sd6#
- 1...Ra5
- 2.Sd6#
- 1...Rb5
- 2.Sd6#
- 1...Rc5
- 2.Sd6#
- 1...Rxe5
- 2.Sd6#
- 1...Rd6
- 2.Sxd6#
- 1...Bxd4
- 2.c4#
- 1...Se1
- 2.Qxd5#
- 1...Sg1
- 2.Qxd5#
- 2.c3#
- 1...Sh2
- 2.Qxd5#
- 2.c3#
- 1...Sxd4
- 2.Qxd5#
- 2.c3#
- 1...Sh4
- 2.Qxd5#
- 2.c3#
- 1...Sxe5
- 2.Qxd5#
- 1...Sg5
- 2.Qxd5#
- 2.c3#
- 1...Ra1
- Tries
- 1.Sf1?
- threat
- 2.c3#
- 1...Sxe5
- 2.Sxd2#
- 1...Ra1
- 2.Qd3#
- 1...Se1
- 2.Sxd2#
- 1...Bb5!
- threat
- 1.Sxg4?
- threat
- 2.Sf2#
- 2.Sf6#
- 2.c3#
- 1...Rxb3
- 2.cxb3#
- 2.c3#
- 1...Rxa4
- 2.Qd3#
- 2.c3#
- 1...Rxd4
- 2.Sf2#
- 2.Sd6#
- 2.c3#
- 1...Bxd4
- 2.Sf2#
- 2.c3#
- 2.c4#
- 1...Bxa4
- 2.c3#
- 1...Sxd4
- 2.Sf2#
- 2.c3#
- 1...Sxe5
- 2.Sf2#
- 2.Sf6#
- 1...Bb5
- 2.Sf2#
- 2.Sf6#
- 1...Ra1
- 2.Sf2#
- 2.Sf6#
- 2.Qd3#
- 2.Qxf3#
- 1...Rd6
- 2.Sf2#
- 2.Sxd6#
- 2.c3#
- 1...Se1
- 2.Sf2#
- 2.Sf6#
- 1...fxg4!
- threat
- 1.Sxd5?
- threat
- 2.Sf6#
- 2.Sd6#
- 2.c3#
- 1...Rxa4
- 2.c3#
- 1...Bxd4
- 2.Sc5#
- 2.Sd6#
- 2.c3#
- 2.c4#
- 1...Bxa4
- 2.c3#
- 1...Sxd4
- 2.Sc3#
- 2.Sd6#
- 2.c3#
- 1...Sxe5
- 2.Sc3#
- 2.Sf6#
- 2.Sd6#
- 1...Bb5
- 2.Sf6#
- 2.Sd6#
- 1...Ra1
- 2.Sf6#
- 2.Sd6#
- 1...Bc5
- 2.Sf6#
- 2.Sxc5#
- 2.c3#
- 1...Bb8
- 2.Sf6#
- 2.Sc5#
- 2.c3#
- 1...Se1
- 2.Sc3#
- 2.Sf6#
- 2.Sd6#
- 1...Rxb3!
- threat
- 1.Rxa3?
- threat
- 2.Qxd5#
- 2.Qd3#
- 1...Kxd4
- 2.Qc4#
- 2.Qxd5#
- 2.Qd3#
- 2.Qb4#
- 1...Rxe5
- 2.Qd3#
- 1...Sxe5
- 2.Qxd5#
- 1...fxe3
- 2.Qxe3#
- 1...Bb5
- 2.Qxd5#
- 1...Ra5
- 2.Qd3#
- 1...Rb5
- 2.Qd3#
- 1...Rc5
- 2.Qd3#
- 1...Rd6
- 2.Qd3#
- 1...Bc6
- 2.Qd3#
- 1...Be6
- 2.Qd3#
- 1...Se1
- 2.Qxd5#
- 1...Rxd4!
- threat
- 1.Sf1?
- Keys
- 1.Sc4!
- threat
- 2.c3#
- 1...Kxd4
- 2.c3#
- 1...Rxd4
- 2.Scd6#
- 1...Rxe5
- 2.Scd6#
- 1...Sxd4
- 2.Sxd2#
- 1...Sxe5
- 2.Sxd2#
- 1...Ra5
- 2.Scd6#
- 1...Rb5
- 2.Scd6#
- 1...Rc5
- 2.Scd6#
- 1...Rd6
- 2.Scxd6#
- 1...Ra1
- 2.Qd3#
- 1...Se1
- 2.Sxd2#
- threat
- 1.Sc4!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- R(c);N_GUARD,P_PINB(A)::QAB1(D)
- R(c);N_GUARD::QAB1(D)
- R(c);N_GUARD,XR(G)::QAB1(D)
- R(h);N_GUARD,P_SPINR(h),XP(H)::S(J)
- R(h);N_GUARD::S(J)
- R(h);N_GUARD,XP(I)::S(J)
- R(h);N_GUARD::S(J),XR(h)
- B(j);P_SPINB(j),SBLOCK,XP(H)::B(A)+P(C)
- S(d);::QAB1(D),XR(h)
- S(d);XP(I)::QAB1(D),XR(h)
- Tries
- Try
- S(E);
- Threat
- B(A)+P(C)
- Vars
- S(d);N_GUARD,XP(I)::S(E),XP(b)
- R(c);N_GUARD,P_PINB(A)::QAB1(D)
- S(d);N_GUARD::S(E),XP(b)
- Refutation
- B(k);
- Try
- S(E);XP(g)
- Threat
- DUALS(3)
- Vars
- B(k);XR(G)::B(A)+P(C)
- Refutation
- P(i);XS(E)
- Try
- S(E);XR(h)
- Threat
- DUALS(3)
- Vars
- R(c);XR(G)::B(A)+P(C)
- B(k);XR(G)::B(A)+P(C)
- Refutation
- R(c);XQ(D)
- Try
- R(G);XR(c)
- Threat
- DUALS(2)
- Vars
- R(h);XP(I)::QAB1(D)
- S(d);XP(I)::QAB1(D),XR(h)
- P(f);OGATE,XS(E)::QAR1(D),XP(f)
- B(k);::QAB1(D),XR(h)
- R(h);::QAB1(D)
- B(k);::QAB1(D)
- S(d);::QAB1(D),XR(h)
- Refutation
- R(h);XP(H)
- Try
- Actual
- S(E);
- Threat
- B(A)+P(C)
- Vars
- K(e);P-FLIGHT,XP(H)::P(C)
- R(h);N_GUARD,XP(H)::S(E)
- R(h);N_GUARD,XP(I)::S(E)
- S(d);N_GUARD,XP(H)::S(E),XP(b)
- S(d);N_GUARD,XP(I)::S(E),XP(b)
- R(h);N_GUARD::S(E)
- R(h);N_GUARD::S(E),XR(h)
- R(c);N_GUARD,P_PINB(A)::QAB1(D)
- S(d);N_GUARD::S(E),XP(b)
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