MESON Chess Problem Database

Problem Display
PID: 48297 (7n/4RpQ1/5Pn1/4BPP1/2P1k2p/5R1P/4K3/8 w - - 0 1)

Dawson, Thomas Rayner

Bath & Wilts. Chronicle & Herald, 1945

7n/4RpQ1/5Pn1/4BPP1/2P1k2p/5R1P/4K3/8

#2

10 + 5

3979 Systematic Terminology 1984
15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4+
      • 2.Rxf4#
    • 1...Sf8
      • 2.Rf4#
  • Tries
    • 1.Ba1+?
      • 1...Se5
        • 2.Rxe5#
      • 1...Sxe7!
    • 1.Bb2+?
      • 1...Se5
        • 2.Rxe5#
      • 1...Sxe7!
    • 1.Bc3+?
      • 1...Se5
        • 2.Rxe5#
      • 1...Sxe7!
    • 1.Qh6?
      • 1...Sf4+
        • 2.Rxf4#
      • 1...Sxe5
        • 2.Qxh4#
      • 1...Sf8
        • 2.Rf4#
        • 2.Qxh4#
      • 1...Sxe7!
    • 1.Qxh8?
      • threat
        • 2.Qa8#
      • 1...Sf4+
        • 2.Rxf4#
      • 1...Sxe5
        • 2.Qxh4#
      • 1...Sxh8
        • 2.Ba1#
        • 2.Bb2#
        • 2.Bc3#
        • 2.Rf4#
      • 1...Sf8
        • 2.Rf4#
        • 2.Qxh4#
      • 1...Sxe7!
    • 1.Qxg6?
      • threat
        • 2.Ba1#
        • 2.Bb2#
        • 2.Bc3#
        • 2.Re3#
        • 2.Rf4#
      • 1...fxg6
        • 2.Ba1#
        • 2.Bb2#
        • 2.Bc3#
        • 2.Rf4#
      • 1...Sxg6!
  • Keys
    • 1.Qh7!
      • 1...Sf4+
        • 2.Rxf4#
      • 1...Sxe5
        • 2.Qxh4#
      • 1...Sxe7
        • 2.Re3#
      • 1...Sf8
        • 2.Re3#
        • 2.Rf4#
        • 2.Qxh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(c);CHECK,N_GUARD::R1(B),XS(c)
    • S(c);N_GUARD::R1(B)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::R1(I),XS(c)
      • Refutation
        • S(c);XR(I)
    • Try
      • B(E);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::R1(I),XS(c)
      • Refutation
        • S(c);XR(I)
    • Try
      • B(E);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::R1(I),XS(c)
      • Refutation
        • S(c);XR(I)
    • Try
      • Q(J);
      • Vars
        • S(c);CHECK,N_GUARD::R1(B),XS(c)
        • S(c);N_GUARD,P_SPINS(c),XB(E)::QAR(J),XP(b)
      • Refutation
        • S(c);XR(I)
    • Try
      • Q(J);XS(e)
      • Threat
        • QAB(J)
      • Vars
        • S(c);CHECK,N_GUARD::R1(B),XS(c)
        • S(c);N_GUARD,P_SPINS(c),XB(E)::QAR(J),XP(b)
      • Refutation
        • S(c);XR(I)
    • Try
      • Q(J);XS(c)
      • Threat
        • DUALS(5)
      • Refutation
        • S(e);XQ(J)
  • Actual
    • Q(J);
    • Vars
      • S(c);CHECK,N_GUARD::R1(B),XS(c)
      • S(c);N_GUARD,P_SPINS(c),XB(E)::QAR(J),XP(b)
      • S(c);XR(I)::R1(B)
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