MESON Chess Problem Database

Problem Display
PID: 10619 (3bkqBR/4p3/1NN2P2/1K1p4/3P4/Q7/4R3/8 w - - 0 1)

Mansfield, Comins

4th HM., Magyar Sakkelet, 1966

3bkqBR/4p3/1NN2P2/1K1p4/3P4/Q7/4R3/8

#2

9 + 5

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Tries
    • 1.Bxd5?
      • threat
        • 2.f7#
      • 1...Bxb6
        • 2.Rxe7#
        • 2.Qxe7#
      • 1...Qg8
        • 2.Rxg8#
      • 1...e6
        • 2.Rxf8#
        • 2.Qxf8#
      • 1...Qxh8!
    • 1.Be6?
      • threat
        • 2.f7#
      • 1...exf6
        • 2.Rxf8#
        • 2.Qxf8#
      • 1...Qg8
        • 2.Rxg8#
      • 1...Qxh8!
    • 1.Qxe7+?
      • 1...Qxe7
        • 2.Bxd5#
      • 1...Bxe7!
  • Keys
    • 1.fxe7!
      • threat
        • 2.exd8Q#
        • 2.exd8R#
        • 2.exf8Q#
        • 2.exf8R#
      • 1...Qxe7
        • 2.Bxd5#
      • 1...Qxg8
        • 2.exd8S#
      • 1...Bxb6
        • 2.exf8S#
      • 1...Bxe7
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(H);P_PINQ(e),XP(a)
      • Threat
        • P(G)
      • Vars
        • Q(e);OGATEB::R(I),XQ(e)
      • Refutation
        • Q(e);N_SPINQ(e),XR(I)
    • Try
      • B(H);N_PINP(b),P_PINQ(e)
      • Threat
        • P(G)
      • Vars
        • Q(e);OGATEB::R(I),XQ(e)
      • Refutation
        • Q(e);N_SPINQ(e),XR(I)
    • Try
      • Q(B);CHECK,XP(b)
      • Vars
        • Q(e);P_SPINQ(e),S_CUTB(c),XQ(B)::R(I)+B(H),XP(a)
      • Refutation
        • B(c);P_SPINB(c),XQ(B)
  • Actual
    • P(G);XP(b)
    • Threat
      • DUALS(4)
    • Vars
      • Q(e);OGATEB,P_SPINQ(e),XP(G)::R(I)+B(H),XP(a)
      • Q(e);P_SPINQ(e),XB(H)::PXB(c)=S
      • B(c);XS(E)::PXQ(e)=S
      • B(c);OGATEB,P_SPINB(c),XP(G)::QAR(B)
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