MESON Chess Problem Database
Problem Display
PID: 137057 (8/8/2pKp3/2B1p2p/r1k1N1qR/1R2Q3/1nr5/8 w - - 0 1)
Watkins, FES
The Field, 1923
(First published on Thu Sep 13 1923)
#2
6 + 9
SOLUTION
- SOUND
- Sets
- 1...Qd1+
- 2.Sd2#
- 1...Qe2
- 2.Sd2#
- 1...Qf3
- 2.Sd2#
- 1...Qh3
- 2.Sd2#
- 1...Qf5
- 2.Sd2#
- 1...Qg1
- 2.Sd2#
- 1...Qg2
- 2.Sd2#
- 1...Qg3
- 2.Sd2#
- 1...Qxe4
- 2.Rxe4#
- 1...Qg5
- 2.Sd2#
- 1...Qg6
- 2.Sd2#
- 1...Qg7
- 2.Sd2#
- 1...Qg8
- 2.Sd2#
- 1...Rc1
- 2.Sd2#
- 1...Rd2+
- 2.Sxd2#
- 1...Re2
- 2.Qc3#
- 1...Rf2
- 2.Qc3#
- 1...Rg2
- 2.Qc3#
- 1...Rh2
- 2.Qc3#
- 1...Rc3
- 2.Sd2#
- 2.Qxc3#
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...Sd1
- 2.Qd3#
- 1...Sd3
- 2.Qxd3#
- 1...Qd1+
- Tries
- 1.Rxb2?
- threat
- 2.Qb3#
- 1...Qd1+
- 2.Sd2#
- 1...Rd2+
- 2.Sxd2#
- 1...Rb4
- 2.Rxb4#
- 1...Qf3
- 2.Sd2#
- 1...Qh3
- 2.Sd2#
- 1...Qg3
- 2.Sd2#
- 1...Rc3
- 2.Sd2#
- 2.Qxc3#
- 1...Ra3
- 2.Rb4#
- 1...Rxb2!
- threat
- 1.Rb6?
- threat
- 2.Qb3#
- 1...Qd1+
- 2.Sd2#
- 1...Rd2+
- 2.Sxd2#
- 1...Qf3
- 2.Sd2#
- 1...Qh3
- 2.Sd2#
- 1...Qg3
- 2.Sd2#
- 1...Rc3
- 2.Sd2#
- 2.Qxc3#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Sd3!
- threat
- 1.Rb7?
- threat
- 2.Qb3#
- 1...Qd1+
- 2.Sd2#
- 1...Rd2+
- 2.Sxd2#
- 1...Qf3
- 2.Sd2#
- 1...Qh3
- 2.Sd2#
- 1...Qg3
- 2.Sd2#
- 1...Rc3
- 2.Sd2#
- 2.Qxc3#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Sd3!
- threat
- 1.Rb8?
- threat
- 2.Qb3#
- 1...Qd1+
- 2.Sd2#
- 1...Rd2+
- 2.Sxd2#
- 1...Qf3
- 2.Sd2#
- 1...Qh3
- 2.Sd2#
- 1...Qg3
- 2.Sd2#
- 1...Rc3
- 2.Sd2#
- 2.Qxc3#
- 1...Ra3
- 2.Rb4#
- 1...Rb4
- 2.Rxb4#
- 1...Sd3!
- threat
- 1.Rxg4?
- threat
- 2.Sd2#
- 1...Rd2+
- 2.Sxd2#
- 1...Rb4
- 2.Rxb4#
- 1...hxg4!
- threat
- 1.Rxb2?
- Keys
- 1.Qh3!
- 1...Qd1+
- 2.Sd2#
- 1...Rd2+
- 2.Sxd2#
- 1...Qxh3
- 2.Sd2#
- 1...Qxe4
- 2.Rxe4#
- 2.Qxe6#
- 1...Qxh4
- 2.Qxe6#
- 1...Qf3
- 2.Sd2#
- 2.Qxe6#
- 1...Qg3
- 2.Sd2#
- 2.Qxe6#
- 1...Rc3
- 2.Sd2#
- 2.Qxc3#
- 1...Rb4
- 2.Rxb4#
- 1...Sd3
- 2.Qxd3#
- 1...Qe2
- 2.Sd2#
- 2.Qxe6#
- 1...Qf5
- 2.Sd2#
- 1...Qg1
- 2.Sd2#
- 2.Qxe6#
- 1...Qg2
- 2.Sd2#
- 2.Qxe6#
- 1...Qf4
- 2.Qxe6#
- 1...Qg5
- 2.Sd2#
- 2.Qxe6#
- 1...Qg6
- 2.Sd2#
- 1...Qg7
- 2.Sd2#
- 2.Qxe6#
- 1...Qg8
- 2.Sd2#
- 1...Rc1
- 2.Sd2#
- 1...Re2
- 2.Qc3#
- 1...Rf2
- 2.Qc3#
- 1...Rg2
- 2.Qc3#
- 1...Rh2
- 2.Qc3#
- 1...Ra1
- 2.Rb4#
- 1...Ra2
- 2.Rb4#
- 1...Ra3
- 2.Rb4#
- 1...Ra5
- 2.Rb4#
- 1...Ra6
- 2.Rb4#
- 1...Ra7
- 2.Rb4#
- 1...Ra8
- 2.Rb4#
- 1...Sd1
- 2.Qd3#
- 1...Qd1+
- 1.Qh3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- Q(e);CHECK::R(D)+S(C),DCHECK
- Q(e);::R(D)+S(C),DCHECK
- Q(e);OGATE,P_SPINQ(e),XS(C)::R(D),XQ(e)
- R(b);N_GUARD::S(C)
- R(b);CHECK,N_GUARD::S(C),XR(b)
- R(b);N_GUARD::QAR1(B)
- R(c);N_GUARD::R1(A)
- R(c);N_GUARD::R1(A),XR(c)
- S(a);N_GUARD::QAB1(B)
- S(a);N_GUARD::QAB1(B),XS(a)
- Tries
- Try
- R(A);XS(a)
- Threat
- QAB1(B)
- Vars
- Q(e);CHECK::R(D)+S(C),DCHECK
- R(b);CHECK,N_GUARD::S(C),XR(b)
- R(c);N_GUARD::R1(A),XR(c)
- Q(e);::R(D)+S(C),DCHECK
- R(c);N_GUARD::R1(A)
- Refutation
- R(b);XR(A)
- Try
- R(A);
- Threat
- QAB1(B)
- Vars
- Q(e);CHECK::R(D)+S(C),DCHECK
- R(b);CHECK,N_GUARD::S(C),XR(b)
- Q(e);::R(D)+S(C),DCHECK
- R(c);N_GUARD::R1(A)
- R(c);N_GUARD::R1(A),XR(c)
- Refutation
- S(a);
- Try
- R(A);
- Threat
- QAB1(B)
- Vars
- Q(e);CHECK::R(D)+S(C),DCHECK
- R(b);CHECK,N_GUARD::S(C),XR(b)
- Q(e);::R(D)+S(C),DCHECK
- R(c);N_GUARD::R1(A)
- R(c);N_GUARD::R1(A),XR(c)
- Refutation
- S(a);
- Try
- R(A);
- Threat
- QAB1(B)
- Vars
- Q(e);CHECK::R(D)+S(C),DCHECK
- R(b);CHECK,N_GUARD::S(C),XR(b)
- Q(e);::R(D)+S(C),DCHECK
- R(c);N_GUARD::R1(A)
- R(c);N_GUARD::R1(A),XR(c)
- Refutation
- S(a);
- Try
- R(D);XQ(e)
- Threat
- R(D)+S(C),DCHECK
- Vars
- R(b);CHECK::R(D)+S(C),DCHECK,XR(b)
- R(c);N_GUARD::R1(A),XR(c)
- Refutation
- P(g);XR(D)
- Try
- Actual
- Q(B);
- Vars
- Q(e);CHECK::R(D)+S(C),DCHECK
- R(b);CHECK,N_GUARD::S(C),XR(b)
- Q(e);XQ(B)::R(D)+S(C),DCHECK
- Q(e);OGATE,XR(D)::QAB(B),XP(i)
- R(c);N_GUARD::R1(A),XR(c)
- S(a);N_GUARD::QAB1(B),XS(a)
- Q(e);::R(D)+S(C),DCHECK
- Q(e);OGATE::QAB(B),XP(i)
- R(b);N_GUARD::S(C)
- R(b);N_GUARD::QAR1(B)
- R(c);N_GUARD::R1(A)
- S(a);N_GUARD::QAB1(B)
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