MESON Chess Problem Database
Problem Display
PID: 258139 (8/2p1N3/1p3Q2/3R2r1/R1BNk1b1/3prn2/4nK2/8 w - - 0 1)
Novitski, Petr Adrinovich
2nd Prize, Astafyeva-30 JT (Kudesnik), 2021
#2
7 + 9
SOLUTION
- SOUND
- Sets
- 1...Rxd5
- 2.Bxd5#
- 1...Rxd5
- Tries
- 1.Sxe2?
- threat
- 2.Sc3#
- 2.Sg3#
- 2.Bxd3#
- 2.Qf4#
- 1...Rxd5
- 2.Sc3#
- 2.Sg3#
- 2.Bxd5#
- 2.Qf4#
- 1...dxe2
- 2.Bd3#
- 1...Rf5
- 2.Bxd3#
- 1...Bh3
- 2.Sc3#
- 2.Bxd3#
- 2.Qf4#
- 1...Bf5
- 2.Bxd3#
- 1...Bh5
- 2.Sc3#
- 2.Bxd3#
- 2.Qf4#
- 1...Be6
- 2.Sc3#
- 2.Bxd3#
- 2.Qf4#
- 1...Bd7
- 2.Sc3#
- 2.Bxd3#
- 2.Qf4#
- 1...Bc8
- 2.Sc3#
- 2.Bxd3#
- 2.Qf4#
- 1...Se1
- 2.Sc3#
- 2.Ba2#
- 2.Bb3#
- 2.Bxd3#
- 2.Bb5#
- 2.Ba6#
- 2.Rd4#
- 2.Qd4#
- 2.Qf4#
- 1...Sg1
- 2.Sc3#
- 2.Ba2#
- 2.Bb3#
- 2.Bxd3#
- 2.Bb5#
- 2.Ba6#
- 2.Rd4#
- 2.Qd4#
- 2.Qf4#
- 1...Sd2
- 2.Sc3#
- 2.Bxd3#
- 2.Rd4#
- 2.Qd4#
- 2.Qf4#
- 1...Sh2
- 2.Sc3#
- 2.Ba2#
- 2.Bb3#
- 2.Bxd3#
- 2.Bb5#
- 2.Ba6#
- 2.Rd4#
- 2.Qd4#
- 2.Qf4#
- 1...Sd4
- 2.Sc3#
- 2.Rxd4#
- 2.Qxd4#
- 2.Qf4#
- 1...Sh4
- 2.Sc3#
- 2.Ba2#
- 2.Bb3#
- 2.Bxd3#
- 2.Bb5#
- 2.Ba6#
- 2.Rd4#
- 2.Qd4#
- 2.Qf4#
- 1...Se5
- 2.Sc3#
- 2.Bxd3#
- 2.Rd4#
- 2.Qf4#
- 1...d2
- 2.Sg3#
- 2.Bd3#
- 2.Qf4#
- 1...Rxe2+!
- threat
- 1.Sb3?
- threat
- 2.Bxd3#
- 1...Rxd5
- 2.Bxd5#
- 1...Sfd4
- 2.Sd2#
- 1...d2
- 2.Bd3#
- 1...Sed4!
- threat
- 1.Sxf3?
- threat
- 2.Sd2#
- 2.Sxg5#
- 2.Bxd3#
- 1...Rxd5
- 2.Sd2#
- 2.Bxd5#
- 1...Bxf3
- 2.Bxd3#
- 1...Rf5
- 2.Bxd3#
- 1...Bf5
- 2.Bxd3#
- 2.Qe5#
- 1...Sd4
- 2.Sd2#
- 2.Sxg5#
- 2.Rxd4#
- 2.Qxd4#
- 1...Re5
- 2.Sd2#
- 2.Bxd3#
- 2.Rxe5#
- 2.Qxe5#
- 1...Rh5
- 2.Sd2#
- 2.Bxd3#
- 1...Rg6
- 2.Sd2#
- 2.Bxd3#
- 2.Re5#
- 2.Qe5#
- 1...Rg7
- 2.Sd2#
- 2.Bxd3#
- 2.Re5#
- 2.Qe5#
- 1...Rg8
- 2.Sd2#
- 2.Bxd3#
- 2.Re5#
- 2.Qe5#
- 1...d2
- 2.Sxd2#
- 2.Sxg5#
- 2.Bxe2#
- 2.Bd3#
- 1...Rxf3+!
- threat
- 1.Sb5?
- threat
- 2.Bxd3#
- 1...Rxd5
- 2.Bxd5#
- 1...Sed4
- 2.Sc3#
- 1...d2
- 2.Bd3#
- 1...Sfd4!
- threat
- 1.Sdf5?
- threat
- 2.Bxd3#
- 1...Sed4
- 2.Sg3#
- 1...Sfd4
- 2.Qe5#
- 1...d2
- 2.Bd3#
- 1...Kf4!
- threat
- 1.Sxe2?
- Keys
- 1.Se6!
- threat
- 2.Bxd3#
- 1...Rxd5
- 2.Bxd5#
- 1...Sed4
- 2.Qf4#
- 1...Sfd4
- 2.Sxg5#
- 1...d2
- 2.Bd3#
- threat
- 1.Se6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(g);OGATE,XR(E)::B(C),XR(g)
- Tries
- Try
- S(D);XS(a)
- Threat
- DUALS(4)
- Vars
- P(b);XS(D)::R(B)+B(C),DCHECK
- R(g);::R(B)+B(C),DCHECK,XP(b)
- B(f);::R(B)+B(C),DCHECK,XP(b)
- Refutation
- R(c);CHECK,XS(D)
- Try
- S(D);
- Threat
- R(B)+B(C),DCHECK,XP(b)
- Vars
- R(g);OGATE,XR(E)::R(B)+B(C),DCHECK,XR(g)
- S(d);N_GUARD::S(D)
- P(b);::R(B)+B(C),DCHECK
- Refutation
- S(a);
- Try
- S(D);XS(d)
- Threat
- DUALS(3)
- Vars
- B(f);XS(D)::R(B)+B(C),DCHECK,XP(b)
- R(g);P_PINS(D)::R(B)+B(C),DCHECK,XP(b)
- Refutation
- R(c);CHECK,XS(D)
- Try
- S(D);
- Threat
- R(B)+B(C),DCHECK,XP(b)
- Vars
- R(g);OGATE,XR(E)::R(B)+B(C),DCHECK,XR(g)
- S(a);N_GUARD::S(D)
- P(b);::R(B)+B(C),DCHECK
- Refutation
- S(d);
- Try
- S(D);
- Threat
- R(B)+B(C),DCHECK,XP(b)
- Vars
- S(a);N_GUARD::S(D)
- S(d);N_GUARD::QAR1(F)
- P(b);::R(B)+B(C),DCHECK
- Refutation
- K(e);P-FLIGHT
- Try
- Actual
- S(D);
- Threat
- R(B)+B(C),DCHECK,XP(b)
- Vars
- R(g);OGATE,XR(E)::R(B)+B(C),DCHECK,XR(g)
- S(a);N_GUARD::QAR1(F)
- S(d);N_GUARD::S(D),XR(g)
- P(b);::R(B)+B(C),DCHECK
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