MESON Chess Problem Database
Problem Display
PID: 243851 (Q2n4/3pB3/K2pR3/bN6/2kP4/5Rr1/N1P3B1/3n2qb w - - 0 1)
Derevchuk, Oleksandr Andrinovich
Kudesnik, 2013
#2
10 + 9
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qf1
- 2.Bxf1#
- 1...Qf1
- Tries
- 1.Rc3+?
- 1...Rxc3
- 2.Qd5#
- 1...Bxc3
- 2.Qd5#
- 1...Sxc3!
- 1...Rxc3
- 1.Rd3?
- threat
- 2.Sa3#
- 2.Sxd6#
- 2.Qd5#
- 1...Qxg2
- 2.Sa3#
- 2.Sxd6#
- 1...Rxg2
- 2.Sa3#
- 2.Sxd6#
- 1...Rxd3
- 2.Qd5#
- 1...Bxg2
- 2.Sa3#
- 2.Sxd6#
- 1...dxe6
- 2.Sa3#
- 2.Sxd6#
- 1...Rf3
- 2.Sa3#
- 2.Sxd6#
- 1...Rg5
- 2.Sa3#
- 2.Sxd6#
- 1...Bb4
- 2.Qd5#
- 1...Bc7
- 2.Sa3#
- 2.Qd5#
- 1...Sc3
- 2.Sa3#
- 2.Sxd6#
- 1...Se3
- 2.Sa3#
- 2.Sxd6#
- 1...Sc6
- 2.Sa3#
- 2.Sxd6#
- 1...Sb7
- 2.Sa3#
- 1...Sf7
- 2.Sa3#
- 2.Qd5#
- 1...d5
- 2.Sa3#
- 2.Sd6#
- 2.Qxd5#
- 1...Qxd4!
- threat
- 1.Rf4?
- threat
- 2.Sxd6#
- 2.Qd5#
- 1...Qxd4
- 2.Qd5#
- 1...Qxg2
- 2.Sxd6#
- 1...Rxg2
- 2.Sa3#
- 2.Sxd6#
- 1...Bxg2
- 2.Sxd6#
- 1...dxe6
- 2.Sxd6#
- 1...Rf3
- 2.Sxd6#
- 1...Rg5
- 2.Sa3#
- 2.Sxd6#
- 1...Bb4
- 2.Qd5#
- 1...Bc7
- 2.Qd5#
- 1...Sc3
- 2.Sa3#
- 2.Sxd6#
- 1...Se3
- 2.Sa3#
- 2.Sxd6#
- 1...Sc6
- 2.Sxd6#
- 1...Sf7
- 2.Qd5#
- 1...d5
- 2.Sd6#
- 2.Qxd5#
- 1...Sb7!
- threat
- 1.Qe4?
- threat
- 2.Sa3#
- 2.Sxd6#
- 1...Qxd4
- 2.Qxd4#
- 1...Rxf3
- 2.Sxd6#
- 1...Qe3
- 2.Sxd6#
- 1...Bc7
- 2.Sa3#
- 1...Sb7
- 2.Sa3#
- 1...Sf7
- 2.Sa3#
- 1...d5
- 2.Sa3#
- 2.Sd6#
- 2.Qd3#
- 2.Qe2#
- 1...Bb4!
- threat
- 1.Rc3+?
- Keys
- 1.Rxd6!
- threat
- 2.Sa3#
- 2.Qd5#
- 1...Qxd4
- 2.Rxd4#
- 1...Rxf3
- 2.Qd5#
- 1...Qe3
- 2.Qd5#
- 1...Rg5
- 2.Sa3#
- 1...Bb4
- 2.Qd5#
- 1...Sc3
- 2.Sa3#
- 1...Se3
- 2.Sa3#
- 1...Sc6
- 2.Sa3#
- 1...Sb7
- 2.Sa3#
- threat
- 1.Rxd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 9
- REMOVED MATES = 1
- Sets
- Q(b);N_GUARD::B(C),XQ(b)
- Tries
- Try
- R(D);CHECK
- Vars
- R(d);XR(D)::QAB1(J)
- B(f);XR(D)::QAB1(J)
- Refutation
- S(a);XR(D)
- Try
- R(D);
- Threat
- DUALS(3)
- Vars
- R(d);XR(D)::QAB1(J)
- B(f);::QAB1(J)
- S(i);::S(F)
- Refutation
- Q(b);XP(E)
- Try
- R(D);
- Threat
- DUALS(2)
- Vars
- Q(b);P_SPINQ(b),XP(E)::QAB1(J)
- Q(b);XB(C)::S(F),XP(g)
- B(c);XB(C)::S(F),XP(g)
- P(h);XR(H)::S(F),XP(g)
- R(d);::S(F),XP(g)
- B(f);::QAB1(J)
- S(i);::S(F),XP(g)
- S(i);::QAB1(J)
- Refutation
- S(i);
- Try
- Q(J);
- Threat
- DUALS(2)
- Vars
- Q(b);OGATE,P_SPINQ(b),XP(E)::QAR1(J),XQ(b)
- R(d);XR(D)::S(F),XP(g)
- Q(b);::S(F),XP(g)
- B(f);::S(F)
- S(i);::S(F)
- Refutation
- B(f);
- Try
- Actual
- R(H);XP(g)
- Threat
- DUALS(2)
- Vars
- Q(b);OGATE,XP(E)::R1(H),XQ(b)
- R(d);XR(D)::QAB1(J)
- Q(b);::QAB1(J)
- R(d);::S(F)
- B(f);::QAB1(J)
- S(a);::S(F)
- S(i);::S(F)
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