MESON Chess Problem Database

Problem Display
PID: 273446 (6B1/BPQ1p3/nP6/K2NNr2/p2k4/1bp1R1nr/2P2P2/4b3 w - - 0 1)

Thomas, CK

British Chess Magazine, 1934

6B1/BPQ1p3/nP6/K2NNr2/p2k4/1bp1R1nr/2P2P2/4b3

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rf3
      • 2.Sxf3#
    • 1...Rg5
      • 2.Sf3#
    • 1...Rh5
      • 2.Sf3#
    • 1...Bxf2
      • 2.Qxc3#
    • 1...Bxc2
      • 2.Qc4#
    • 1...Bc4
      • 2.Qxc4#
    • 1...Sxc7
      • 2.bxc7#
  • Keys
    • 1.Sxc3!
      • threat
        • 2.Rd3#
      • 1...Rxe5+
        • 2.Qxe5#
      • 1...Bxc3+
        • 2.Qxc3#
      • 1...Bxc2
        • 2.Qc4#
      • 1...Sxc7
        • 2.bxc7#
      • 1...Rf3
        • 2.Sxf3#
      • 1...Bc4
        • 2.Qxc4#
      • 1...Sf1
        • 2.Re4#
      • 1...Sh1
        • 2.Re4#
      • 1...Se2
        • 2.Re4#
      • 1...Se4
        • 2.Rxe4#
      • 1...Sh5
        • 2.Re4#
      • 1...Sb4
        • 2.Sb5#
      • 1...Sc5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 3
  • Sets
    • R(h);N_GUARD::S(F),XR(h)
    • R(h);N_GUARD::S(F)
    • B(a);N_GUARD,XP(B)::QAB1(J),XP(c)
    • B(b);N_GUARD,XP(A)::QAR1(J)
    • B(b);N_GUARD::QAR1(J),XB(b)
    • S(i);OGATE,XQ(J)::B(H)+P(G),XS(i)
  • Actual
    • S(E);P_SPINS(E),XP(c)
    • Threat
      • R1(C)
    • Vars
      • R(h);CHECK,OGATE,XS(F)::QAB1(J),XR(h)
      • B(a);CHECK,OGATE,P_PINS(F),XS(E)::QAB1(J),XB(a)
      • B(b);N_GUARD,XP(A)::QAR1(J)
      • S(i);OGATE,XQ(J)::B(H)+P(G),XS(i)
      • R(h);::S(F),XR(h)
      • B(b);N_GUARD::QAR1(J),XB(b)
      • S(d);N_GUARD::R1(C)
      • S(d);N_GUARD::R1(C),XS(d)
      • S(i);N_PINS(E),P_PINS(F)::S(E)
      • S(i);SBLOCK::S(F)
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