MESON Chess Problem Database
Problem Display
PID: 80647 (5N2/1pQp1n1B/1Bbr4/6pp/5kPn/1p3p1R/1K3N2/4R3 w - - 0 1)
Eaton, Vincent Lanius
The Field, 1948
(First published on Sat Jan 31 1948)
#2
9 + 11
SOLUTION
- SOUND
- Sets
- 1...Ba4
- 2.Re4#
- 1...Be4
- 2.Rxe4#
- 1...Bb5
- 2.Re4#
- 1...Bd5
- 2.Qc1#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se5
- 2.Be3#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...hxg4
- 2.Sd3#
- 1...Ba4
- Tries
- 1.Ka1?
- 1...hxg4
- 2.Sd3#
- 1...Be4
- 2.Rxe4#
- 1...Ba4
- 2.Re4#
- 1...Bb5
- 2.Re4#
- 1...Bd5
- 2.Qc1#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se5
- 2.Be3#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...b2+!
- 1...hxg4
- 1.Kb1?
- 1...Be4+
- 2.Rxe4#
- 1...hxg4
- 2.Sd3#
- 1...Ba4
- 2.Re4#
- 1...Bb5
- 2.Re4#
- 1...Bd5
- 2.Qc1#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se5
- 2.Be3#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...b2!
- 1...Be4+
- 1.Ka3?
- 1...hxg4
- 2.Sd3#
- 1...Be4
- 2.Rxe4#
- 1...Ba4
- 2.Re4#
- 1...Bb5
- 2.Re4#
- 1...Bd5
- 2.Qc1#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se5
- 2.Be3#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...b2!
- 1...hxg4
- 1.Ba5?
- threat
- 2.Bd2#
- 1...Be4
- 2.Rxe4#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Se5!
- threat
- 1.Bb1?
- 1...Be4
- 2.Rxe4#
- 1...Ba4
- 2.Re4#
- 1...Bb5
- 2.Re4#
- 1...Bd5
- 2.Qc1#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se5
- 2.Be3#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...hxg4!
- 1...Be4
- 1.Bd3?
- 1...Be4
- 2.Rxe4#
- 1...Ba4
- 2.Re4#
- 2.Qc1#
- 1...Bb5
- 2.Re4#
- 2.Qc1#
- 1...Bd5
- 2.Qc1#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se5
- 2.Be3#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...hxg4!
- 1...Be4
- 1.Bf5?
- threat
- 2.Sd3#
- 1...Sxf5
- 2.Sg6#
- 1...Be4
- 2.Rxe4#
- 1...Bb5
- 2.Re4#
- 1...Se5
- 2.Be3#
- 1...hxg4!
- threat
- 1.Bg8?
- 1...Be4
- 2.Rxe4#
- 1...Ba4
- 2.Re4#
- 1...Bb5
- 2.Re4#
- 1...Bd5
- 2.Qc1#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se5
- 2.Be3#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...hxg4!
- 1...Be4
- 1.Re2?
- 1...hxg4
- 2.Sd3#
- 1...Be4
- 2.Rxe4#
- 1...Ba4
- 2.Re4#
- 1...Bb5
- 2.Re4#
- 1...Bd5
- 2.Qc1#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se5
- 2.Be3#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...fxe2!
- 1...hxg4
- 1.Re7?
- threat
- 2.Be3#
- 1...Be4
- 2.Rxe4#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Se5!
- threat
- 1.Re8?
- threat
- 2.Be3#
- 1...Be4
- 2.Rxe4#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Se5!
- threat
- 1.Qxd6+?
- 1...Se5
- 2.Be3#
- 2.Qxe5#
- 2.Qd2#
- 1...Sxd6!
- 1...Se5
- 1.Qb8?
- 1...hxg4
- 2.Sd3#
- 1...Be4
- 2.Rxe4#
- 1...Ba4
- 2.Re4#
- 1...Bb5
- 2.Re4#
- 1...Sg2
- 2.Sg6#
- 1...Sf5
- 2.Sg6#
- 1...Sg6
- 2.Sxg6#
- 1...Se5
- 2.Be3#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...Bd5!
- 1...hxg4
- 1.Ka1?
- Keys
- 1.Qxd7!
- 1...Rd2+
- 2.Qxd2#
- 1...Rxd7
- 2.Se6#
- 1...Bxd7
- 2.Re4#
- 1...hxg4
- 2.Qxg4#
- 1...Be4
- 2.Rxe4#
- 1...Ba4
- 2.Re4#
- 1...Rd1
- 2.Se6#
- 1...Rd3
- 2.Sxd3#
- 2.Se6#
- 1...Rd4
- 2.Se6#
- 1...Rd5
- 2.Se6#
- 2.Re4#
- 1...Re6
- 2.Sxe6#
- 1...Rf6
- 2.Sd3#
- 2.Qd2#
- 1...Rg6
- 2.Sd3#
- 2.Qd2#
- 1...Rh6
- 2.Sd3#
- 2.Qd2#
- 1...Bb5
- 2.Re4#
- 1...Bd5
- 2.Sd3#
- 1...Sg2
- 2.Qf5#
- 1...Sf5
- 2.Qxf5#
- 1...Sg6
- 2.Qf5#
- 1...Se5
- 2.Be3#
- 1...Sh6
- 2.Qxd6#
- 1...Sd8
- 2.Qxd6#
- 1...Sh8
- 2.Qxd6#
- 1...Rd2+
- 1.Qxd7!
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 5
- ADDED MATES = 6
- REMOVED MATES = 0
- Sets
- B(g);N_GUARD::R1(A)
- B(g);N_GUARD::R1(A),XB(g)
- B(g);OGATE::QAB(G)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(k);N_SPINR(h),SBLOCK::B(F)
- S(k);N_GUARD::QAB(G),XR(h)
- P(f);SBLOCK,XP(E)::S(C)
- Tries
- Try
- K(B);S_FLIGHT
- Vars
- P(f);SBLOCK,XP(E)::S(C)
- B(g);N_GUARD::R1(A),XB(g)
- B(g);N_GUARD::R1(A)
- B(g);OGATE::QAB(G)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(k);N_SPINR(h),SBLOCK::B(F)
- S(k);N_GUARD::QAB(G),XR(h)
- Refutation
- P(a);CHECK
- Try
- K(B);P-FLIGHT
- Vars
- B(g);CHECK,N_GUARD::R1(A),XB(g)
- P(f);SBLOCK,XP(E)::S(C)
- B(g);N_GUARD::R1(A)
- B(g);OGATE::QAB(G)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(k);N_SPINR(h),SBLOCK::B(F)
- S(k);N_GUARD::QAB(G),XR(h)
- Refutation
- P(a);
- Try
- K(B);S_FLIGHT
- Vars
- P(f);SBLOCK,XP(E)::S(C)
- B(g);N_GUARD::R1(A),XB(g)
- B(g);N_GUARD::R1(A)
- B(g);OGATE::QAB(G)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(k);N_SPINR(h),SBLOCK::B(F)
- S(k);N_GUARD::QAB(G),XR(h)
- Refutation
- P(a);
- Try
- B(F);
- Threat
- B(F)
- Vars
- B(g);N_GUARD::R1(A),XB(g)
- S(d);N_GUARD::S(I)
- Refutation
- S(k);N_SPINR(h)
- Try
- B(H);
- Vars
- B(g);N_GUARD::R1(A),XB(g)
- B(g);N_GUARD::R1(A)
- B(g);OGATE::QAB(G)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(k);N_SPINR(h),SBLOCK::B(F)
- S(k);N_GUARD::QAB(G),XR(h)
- Refutation
- P(f);XP(E)
- Try
- B(H);
- Vars
- B(g);N_GUARD::R1(A),XB(g)
- B(g);OGATE::QAB(G)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(k);N_SPINR(h),SBLOCK::B(F)
- S(k);N_GUARD::QAB(G),XR(h)
- Refutation
- P(f);XP(E)
- Try
- B(H);
- Threat
- S(C)
- Vars
- S(d);N_GUARD,XB(H)::S(I)
- B(g);N_GUARD::R1(A),XB(g)
- B(g);N_GUARD::R1(A)
- S(k);N_SPINR(h),SBLOCK::B(F)
- Refutation
- P(f);XP(E)
- Try
- B(H);
- Vars
- B(g);N_GUARD::R1(A),XB(g)
- B(g);N_GUARD::R1(A)
- B(g);OGATE::QAB(G)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(k);N_SPINR(h),SBLOCK::B(F)
- S(k);N_GUARD::QAB(G),XR(h)
- Refutation
- P(f);XP(E)
- Try
- R(A);
- Vars
- P(f);SBLOCK,XP(E)::S(C)
- B(g);N_GUARD::R1(A),XB(g)
- B(g);N_GUARD::R1(A)
- B(g);OGATE::QAB(G)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(k);N_SPINR(h),SBLOCK::B(F)
- S(k);N_GUARD::QAB(G),XR(h)
- Refutation
- P(b);XR(A)
- Try
- R(A);
- Threat
- B(F)
- Vars
- B(g);N_GUARD::R1(A),XB(g)
- S(d);N_GUARD::S(I)
- Refutation
- S(k);N_SPINR(h)
- Try
- R(A);
- Threat
- B(F)
- Vars
- B(g);N_GUARD::R1(A),XB(g)
- S(d);N_GUARD::S(I)
- Refutation
- S(k);N_SPINR(h)
- Try
- Q(G);CHECK,XR(h)
- Refutation
- S(k);XQ(G)
- Try
- Q(G);
- Vars
- P(f);SBLOCK,XP(E)::S(C)
- B(g);N_GUARD::R1(A),XB(g)
- B(g);N_GUARD::R1(A)
- S(d);N_GUARD::S(I)
- S(d);N_GUARD::S(I),XS(d)
- S(k);N_SPINR(h),SBLOCK::B(F)
- S(k);N_GUARD::QAB(G),XR(h)
- Refutation
- B(g);
- Try
- Actual
- Q(G);N_PINR(h),XP(j)
- Vars
- R(h);CHECK,OGATE::QAB(G),XR(h)
- R(h);N_GUARD,XQ(G)::S(I)
- B(g);N_GUARD,XQ(G)::R1(A)
- P(f);OGATE,XP(E)::QAR1(G),XP(f)
- B(g);N_GUARD::R1(A),XB(g)
- B(g);N_GUARD::R1(A)
- R(h);N_GUARD::S(I)
- R(h);N_GUARD::S(I),XR(h)
- B(g);S_CUTR(h)::S(C)
- S(d);N_GUARD::QAR1(G)
- S(d);N_GUARD::QAR1(G),XS(d)
- S(k);SBLOCK::B(F)
- S(k);N_GUARD::QAB(G),XR(h)
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