MESON Chess Problem Database
Problem Display
PID: 235413 (5RB1/B4R2/8/r1npbn1r/p1P1k1Np/2P2p1N/K1P1q3/4Q3 w - - 0 1)
Pituk, Alexander
Alexander Pituk Chess Compositions II (Torok/Labai), 2005
#2
11 + 11
| 15148 | Sadier Collection | 2021 |
SOLUTION
- SOUND
- Sets
- 1...Qe3
- 2.Sgf2#
- 1...Bf4
- 2.Shf2#
- 1...Sb3
- 2.Sgf2#
- 1...Sa6
- 2.Sgf2#
- 1...Se6
- 2.Sgf2#
- 1...Sb7
- 2.Sgf2#
- 1...Sd7
- 2.Sgf2#
- 1...Sg3
- 2.Shf2#
- 1...Sd4
- 2.Shf2#
- 1...Sd6
- 2.Shf2#
- 1...Sh6
- 2.Shf2#
- 1...Se7
- 2.Shf2#
- 1...Sg7
- 2.Shf2#
- 1...Qe3
- Tries
- 1.Rxf5?
- threat
- 2.Shf2#
- 2.Bxd5#
- 1...Qxe1
- 2.Bxd5#
- 1...Rxf5
- 2.Bxd5#
- 1...Bxc3
- 2.Rf4#
- 1...dxc4
- 2.Shf2#
- 1...Bf6
- 2.Rf4#
- 1...Bg3
- 2.Bxd5#
- 1...Bd4
- 2.Bxd5#
- 2.Rf4#
- 1...Sb3
- 2.Shf2#
- 2.Sgf2#
- 1...Sa6
- 2.Shf2#
- 2.Sgf2#
- 1...Se6
- 2.Shf2#
- 2.Sgf2#
- 1...Sb7
- 2.Shf2#
- 2.Sgf2#
- 1...Sd7
- 2.Shf2#
- 2.Sgf2#
- 1...f2
- 2.Shxf2#
- 2.Bxd5#
- 2.Qxe2#
- 1...d4
- 2.Shf2#
- 2.Bd5#
- 1...Sd3!
- threat
- 1.Re8?
- threat
- 2.Rxe5#
- 1...Sd3
- 2.Sf6#
- 1...Se6
- 2.Sgf2#
- 1...Sd7
- 2.Sgf2#
- 1...Se3
- 2.Rf4#
- 1...Sg3
- 2.Shf2#
- 2.Rf4#
- 1...Sd4
- 2.Shf2#
- 2.Rf4#
- 1...Sd6
- 2.Shf2#
- 2.Rf4#
- 1...Sh6
- 2.Shf2#
- 2.Rf4#
- 1...Se7
- 2.Shf2#
- 1...Sg7
- 2.Shf2#
- 2.Rf4#
- 1...f2!
- threat
- 1.Qxe2+?
- 1...Se3
- 2.Shf2#
- 2.Sgf2#
- 2.Qxf3#
- 2.Qxe3#
- 1...fxe2!
- 1...Se3
- 1.Rxf5?
- Keys
- 1.Re7!
- threat
- 2.Bxd5#
- 2.Rxe5#
- 1...Sxe7
- 2.Shf2#
- 1...dxc4
- 2.Rxe5#
- 1...f2
- 2.Bxd5#
- 1...Sd3
- 2.Sf6#
- 1...Sb3
- 2.Sgf2#
- 2.Sf6#
- 2.Rxe5#
- 1...Sa6
- 2.Sgf2#
- 2.Sf6#
- 2.Rxe5#
- 1...Se6
- 2.Sgf2#
- 1...Sb7
- 2.Sgf2#
- 2.Sf6#
- 2.Rxe5#
- 1...Sd7
- 2.Sgf2#
- 1...Se3
- 2.Rf4#
- 1...Sg3
- 2.Shf2#
- 2.Bxd5#
- 2.Rf4#
- 1...Sd4
- 2.Shf2#
- 2.Bxd5#
- 2.Rf4#
- 1...Sd6
- 2.Shf2#
- 2.Bxd5#
- 2.Rf4#
- 1...Sh6
- 2.Shf2#
- 2.Bxd5#
- 2.Rf4#
- 1...Sg7
- 2.Shf2#
- 2.Bxd5#
- 2.Rf4#
- 1...d4
- 2.Bd5#
- 2.Rxe5#
- threat
- 1.Re7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 10
- Sets
- Q(a);N_PINP(C)::S(G)
- B(i);SBLOCK::S(E)
- S(g);::S(G)
- S(j);::S(E)
- Tries
- Try
- R(I);XS(j)
- Threat
- DUALS(2)
- Vars
- Q(a);N_PINP(C),N_SPINQ(a),XQ(A)::B(K),XP(h)
- R(k);XR(I)::B(K),XP(h)
- B(i);N_GUARD,XP(D)::R1(I)
- P(h);XP(F)::S(E)
- B(i);N_GUARD::R1(I)
- B(i);::B(K),XP(h)
- Refutation
- S(g);
- Try
- R(J);P_PINB(i)
- Threat
- R1(J),XB(i)
- Vars
- S(g);::S(G)
- S(g);N_SPINB(i)::S(G)
- S(j);N_SPINQ(a),OGATE::R1(I)
- S(j);N_SPINB(i)::S(E)
- Refutation
- P(b);
- Try
- Q(A);CHECK,N_SPINP(C),XQ(a)
- Refutation
- P(b);XQ(A)
- Try
- Actual
- R(I);P_PINB(i)
- Threat
- DUALS(2)
- Vars
- S(j);N_SPINB(i),XR(I)::S(E)
- P(h);XP(F)::R1(I),XB(i)
- P(b);::B(K),XP(h)
- S(g);::S(G)
- S(g);N_SPINB(i)::S(G)
- S(j);N_SPINQ(a),OGATE::R1(J)
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