MESON Chess Problem Database

Problem Display
PID: 78960 (6B1/8/rb6/r3pR1K/3PkB2/1p2N3/4Q3/8 w - - 0 1)

Mansfield, Comins

Bristol Times and Mirror, 1924

6B1/8/rb6/r3pR1K/3PkB2/1p2N3/4Q3/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qc4#
  • Tries
    • 1.Kg4?
      • threat
        • 2.Sc2#
      • 1...Kxd4
        • 2.Qc4#
      • 1...Bxd4!
    • 1.Sd1+?
      • 1...Kxd4
        • 2.Qc4#
        • 2.Qe3#
      • 1...Kxf5!
    • 1.Sf1+?
      • 1...Kxd4
        • 2.Qc4#
        • 2.Qe3#
      • 1...Kxf5!
    • 1.Sg2+?
      • 1...Kxd4
        • 2.Qc4#
        • 2.Qe3#
      • 1...Kxf5!
    • 1.Sc4+?
      • 1...Kxd4
        • 2.Qe3#
      • 1...Kxf5!
    • 1.Sg4+?
      • 1...Kxd4
        • 2.Qc4#
        • 2.Qe3#
      • 1...Kxf5!
    • 1.Sd5+?
      • 1...Kxf5
        • 2.Qxe5#
      • 1...Kxd4!
    • 1.Bd5+?
      • 1...Kxd4
        • 2.Qc4#
      • 1...Rxd5!
    • 1.Be6?
      • threat
        • 2.Sc2#
      • 1...Kxd4
        • 2.Qc4#
      • 1...Bxd4!
    • 1.Rxe5+?
      • 1...Kxd4
        • 2.Qc4#
        • 2.Qd2#
      • 1...Kxf4
        • 2.Qg4#
        • 2.Qf2#
      • 1...Rxe5+!
    • 1.Rf8?
      • threat
        • 2.Sc2#
      • 1...exd4+
        • 2.Sd5#
      • 1...exf4+
        • 2.Sf5#
      • 1...Kxd4
        • 2.Qc4#
      • 1...Bxd4!
    • 1.Qd3+?
      • 1...Kf3
        • 2.Bh2#
        • 2.Bxe5#
      • 1...Kxd3!
    • 1.Qc2+?
      • 1...Kf3
        • 2.Qg2#
      • 1...Kxd4
        • 2.Qc4#
      • 1...bxc2!
  • Keys
    • 1.Rf6!
      • threat
        • 2.Sc2#
      • 1...exd4+
        • 2.Sd5#
      • 1...exf4+
        • 2.Sf5#
      • 1...Kxd4
        • 2.Qc4#
      • 1...Bxd4
        • 2.Bh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATEB,P-FLIGHT,XP(C)::QAR1(A)
  • Tries
    • Try
      • K(F);S_FLIGHT
      • Threat
        • QAR(A)+S(B)
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(C)::QAR1(A)
      • Refutation
        • B(f);XP(C)
    • Try
      • S(B);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(B);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(B);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(B);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(C)::QAB1(A)
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(B);CHECK
      • Refutation
        • K(b);S_FLIGHT,XR(E)
    • Try
      • S(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT,XR(E)::QAR1(A),XP(d)
      • Refutation
        • K(b);P-FLIGHT,XP(C)
    • Try
      • B(G);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(C)::QAR1(A)
      • Refutation
        • R(c);XB(G)
    • Try
      • B(G);
      • Threat
        • QAR(A)+S(B)
      • Vars
        • K(b);OGATEB,P-FLIGHT,XP(C)::QAR1(A)
      • Refutation
        • B(f);XP(C)
    • Try
      • R(E);CHECK,P_SPINR(E),XP(d)
      • Refutation
        • R(c);CHECK,XR(E)
    • Try
      • R(E);
      • Threat
        • QAR(A)+S(B)
      • Vars
        • P(d);CHECK,SBLOCK,XP(C)::QAR(A)+S(B)
        • P(d);CHECK,SBLOCK,XB(D)::QAR(A)+S(B)
        • K(b);OGATEB,P-FLIGHT,XP(C)::QAR1(A)
      • Refutation
        • B(f);XP(C)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • K(b);OGATEB,P-FLIGHT,XP(C)::QAR1(A)
      • Refutation
        • P(a);XQ(A)
  • Actual
    • R(E);
    • Threat
      • QAR(A)+S(B)
    • Vars
      • P(d);CHECK,SBLOCK,XP(C)::QAR(A)+S(B)
      • P(d);CHECK,SBLOCK,XB(D)::QAR(A)+S(B)
      • K(b);OGATEB,P-FLIGHT,XP(C)::QAR1(A)
      • B(f);SBLOCK,XP(C)::B(G)
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