MESON Chess Problem Database
Problem Display
PID: 210542 (8/8/4KNp1/6p1/1p2pkBb/1Pp1n1nP/2Rp2p1/3QR1N1 w - - 0 1)
Fink, Adolf Jay
The Observer, 1921
(First published on Sun Feb 13 1921)
#2
9 + 11
| 15239 | Valois Notebooks | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Sxd1
- 2.Sd5#
- 1...Sef1
- 2.Sd5#
- 1...Sxc2
- 2.Sd5#
- 1...Sc4
- 2.Sd5#
- 1...Sxg4
- 2.Sd5#
- 2.Qxg4#
- 1...Sd5
- 2.Sxd5#
- 1...Sef5
- 2.Sd5#
- 1...Sgf1
- 2.Se2#
- 1...Sh1
- 2.Se2#
- 1...Se2
- 2.Sxe2#
- 1...Sgf5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...dxe1Q
- 2.Qd6#
- 1...dxe1S
- 2.Qd6#
- 1...dxe1B
- 2.Qd6#
- 1...dxe1R
- 2.Rf2#
- 2.Qd6#
- 1...Sxd1
- Tries
- 1.Sh5+?
- 1...Sxh5
- 2.Se2#
- 1...gxh5!
- 1...Sxh5
- 1.Rc1?
- 1...Sxd1
- 2.Sd5#
- 1...Sxg4
- 2.Sd5#
- 2.Qxg4#
- 1...dxc1Q
- 2.Qd6#
- 1...dxc1S
- 2.Qd6#
- 1...dxc1B
- 2.Qd6#
- 1...dxc1R
- 2.Qd6#
- 1...dxe1Q
- 2.Qd6#
- 1...dxe1S
- 2.Qd6#
- 1...dxe1B
- 2.Qd6#
- 1...dxe1R
- 2.Qd6#
- 1...Sgf1
- 2.Se2#
- 1...Sh1
- 2.Se2#
- 1...Se2
- 2.Sxe2#
- 1...Sgf5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...Sef1
- 2.Sd5#
- 1...Sc2
- 2.Sd5#
- 1...Sc4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sef5
- 2.Sd5#
- 1...c2!
- 1...Sxd1
- 1.Ra2?
- 1...Sxd1
- 2.Sd5#
- 1...Sxg4
- 2.Sd5#
- 2.Qxg4#
- 1...dxe1Q
- 2.Qd6#
- 1...dxe1S
- 2.Qd6#
- 1...dxe1B
- 2.Qd6#
- 1...dxe1R
- 2.Rf2#
- 2.Qd6#
- 1...Sgf1
- 2.Se2#
- 1...Sh1
- 2.Se2#
- 1...Se2
- 2.Sxe2#
- 1...Sgf5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...Sef1
- 2.Sd5#
- 1...Sc2
- 2.Sd5#
- 1...Sc4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sef5
- 2.Sd5#
- 1...c2!
- 1...Sxd1
- 1.Rxd2?
- threat
- 2.Rf2#
- 1...Sxd1
- 2.Sd5#
- 1...Sxg4
- 2.Sd5#
- 2.Qxg4#
- 1...Sgf1
- 2.Se2#
- 1...Sh1
- 2.Se2#
- 1...Se2
- 2.Sxe2#
- 1...Sgf5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...cxd2!
- threat
- 1.Rxc3?
- 1...Sxd1
- 2.Sd5#
- 1...Sxg4
- 2.Sd5#
- 2.Qxg4#
- 1...dxe1Q
- 2.Qd6#
- 1...dxe1S
- 2.Qd6#
- 1...dxe1B
- 2.Qd6#
- 1...dxe1R
- 2.Qd6#
- 1...Sgf1
- 2.Se2#
- 1...Sh1
- 2.Se2#
- 1...Se2
- 2.Sxe2#
- 1...Sgf5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...Sef1
- 2.Sd5#
- 1...Sc2
- 2.Sd5#
- 1...Sc4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sef5
- 2.Sd5#
- 1...bxc3!
- 1...Sxd1
- 1.Qxd2?
- threat
- 2.Sd5#
- 2.Qxe3#
- 2.Qf2#
- 2.Qd6#
- 1...Sf1
- 2.Se2#
- 2.Qd6#
- 1...Sh1
- 2.Se2#
- 2.Qxe3#
- 2.Qd6#
- 1...Se2
- 2.Sxe2#
- 2.Qd6#
- 1...Sf5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 2.Qxe3#
- 2.Qd6#
- 1...cxd2!
- threat
- 1.Sh5+?
- Keys
- 1.Qc1!
- 1...Sxc2
- 2.Sd5#
- 1...Sxg4
- 2.Sd5#
- 1...dxc1Q
- 2.Rf2#
- 1...dxc1S
- 2.Rf2#
- 1...dxc1B
- 2.Rf2#
- 1...dxc1R
- 2.Rf2#
- 1...dxe1Q
- 2.Sd5#
- 1...dxe1S
- 2.Sd5#
- 1...dxe1B
- 2.Sd5#
- 1...dxe1R
- 2.Sd5#
- 2.Rf2#
- 1...Sgf1
- 2.Se2#
- 1...Sh1
- 2.Se2#
- 1...Se2
- 2.Sxe2#
- 1...Sgf5
- 2.Se2#
- 1...Sh5
- 2.Se2#
- 1...d1Q
- 2.Qxe3#
- 1...d1S
- 2.Sd5#
- 1...d1B
- 2.Sd5#
- 2.Qxe3#
- 1...d1R
- 2.Rf2#
- 2.Qxe3#
- 1...Sd1
- 2.Sd5#
- 1...Sef1
- 2.Sd5#
- 1...Sc4
- 2.Sd5#
- 1...Sd5
- 2.Sxd5#
- 1...Sef5
- 2.Sd5#
- 1...Sxc2
- 1.Qc1!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 3
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- S(d);N_GUARD,XQ(A)::S(I)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD,XR(D)::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(e);N_GUARD::S(C)
- S(e);N_GUARD::S(C),XS(e)
- P(a);OGATE,XR(B)::QAB(A)
- Tries
- Try
- S(I);CHECK
- Vars
- S(e);XS(I)::S(C)
- Refutation
- P(k);XS(I)
- Try
- R(D);
- Vars
- S(d);N_GUARD,XQ(A)::S(I)
- P(a);OGATE,XR(D)::QAB(A)
- P(a);OGATE,XR(B)::QAB(A)
- S(e);N_GUARD::S(C)
- S(e);N_GUARD::S(C),XS(e)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- Refutation
- P(c);
- Try
- R(D);
- Vars
- S(d);N_GUARD,XQ(A)::S(I)
- P(a);OGATE,XR(B)::QAB(A)
- S(e);N_GUARD::S(C)
- S(e);N_GUARD::S(C),XS(e)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- Refutation
- P(c);
- Try
- R(D);XP(a)
- Threat
- R(D)
- Vars
- S(d);N_GUARD,XQ(A)::S(I)
- S(e);N_GUARD::S(C)
- S(e);N_GUARD::S(C),XS(e)
- Refutation
- P(c);XR(D)
- Try
- R(D);XP(c)
- Vars
- S(d);N_GUARD,XQ(A)::S(I)
- P(a);OGATE,XR(B)::QAB(A)
- S(e);N_GUARD::S(C)
- S(e);N_GUARD::S(C),XS(e)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- Refutation
- P(f);XR(D)
- Try
- Q(A);P_PINS(d),XP(a)
- Threat
- DUALS(4)
- Vars
- S(e);N_GUARD::S(C)
- Refutation
- P(c);N_SPINS(d),XQ(A)
- Try
- Actual
- Q(A);
- Vars
- S(d);N_GUARD,P_SPINP(a),XR(D)::S(I)
- S(d);N_GUARD,P_SPINP(a),XB(G)::S(I)
- P(a);OGATE,XQ(A)::R(D)
- P(a);P_SPINS(d),XR(B)::S(I)
- S(e);N_GUARD::S(C)
- S(e);N_GUARD::S(C),XS(e)
- P(a);OGATE,P_SPINS(d)::QAB1(A),XS(d)
- P(a);P_SPINS(d)::S(I)
- S(d);N_GUARD,P_SPINP(a)::S(I)
- S(d);N_GUARD,P_SPINP(a)::S(I),XS(d)
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