MESON Chess Problem Database

Problem Display
PID: 1062 (6R1/1B2K3/8/4pk2/pP1P2n1/Q2p2B1/P4n2/2R5 w - - 0 1)

Steiner, Paul

The Problemist Supplement, 1999

6R1/1B2K3/8/4pk2/pP1P2n1/Q2p2B1/P4n2/2R5

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.Bc8#
    • 1...d2
      • 2.Qf3#
    • 1...e4
      • 2.Bc8#
  • Tries
    • 1.Re1?
      • threat
        • 2.Bc8#
      • 1...Sf6
        • 2.Rxe5#
      • 1...Se3!
    • 1.Rf1?
      • 1...exd4
        • 2.Qxd3#
      • 1...Se3
        • 2.Rxf2#
      • 1...Sf6
        • 2.Rxf2#
      • 1...Sh6
        • 2.Rxf2#
      • 1...d2
        • 2.Qf3#
      • 1...e4
        • 2.Bc8#
      • 1...Sh2!
    • 1.Qxd3+?
      • 1...Se4
        • 2.Bxe4#
        • 2.Bc8#
        • 2.Qxe4#
        • 2.Qf3#
      • 1...e4
        • 2.Bc8#
      • 1...Sxd3!
  • Keys
    • 1.Rc5!
      • 1...Sd1
        • 2.Qxd3#
      • 1...Sh1
        • 2.Qxd3#
      • 1...Sh3
        • 2.Qxd3#
      • 1...Se4
        • 2.Bc8#
      • 1...Sh2
        • 2.Rxe5#
      • 1...Se3
        • 2.Rxe5#
      • 1...Sf6
        • 2.Rxe5#
      • 1...Sh6
        • 2.Rxe5#
      • 1...d2
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • S(a);SBLOCK::B(G)
    • P(b);OGATE::QAR2(C)
    • P(e);SBLOCK::B(G)
  • Tries
    • Try
      • R(A);
      • Threat
        • B(G)
      • Vars
        • S(d);N_GUARD::R1(A),XP(e)
      • Refutation
        • S(d);
    • Try
      • R(A);P_PINS(a)
      • Vars
        • P(e);N_GUARD,XP(F)::QAB(C),XP(b)
        • S(d);N_GUARD::R(A),XS(a)
        • P(b);OGATE::QAR2(C)
        • P(e);SBLOCK::B(G)
      • Refutation
        • S(d);
    • Try
      • Q(C);CHECK,XP(b)
      • Vars
        • P(e);P_SPINP(e)::B(G)
      • Refutation
        • S(a);XQ(C)
  • Actual
    • R(A);P_PINP(e)
    • Vars
      • S(a);N_GUARD::QAB(C),XP(b)
      • S(a);SBLOCK::B(G)
      • S(d);N_GUARD::R1(A),XP(e)
      • P(b);OGATE::QAR2(C)
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