MESON Chess Problem Database

Problem Display
PID: 43027 (6K1/1n4N1/5k1B/4p2P/5p2/3nR3/8/Q7 w - - 0 1)

Tomasevic, Milos

Sah, 1948

6K1/1n4N1/5k1B/4p2P/5p2/3nR3/8/Q7

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qxe5#
    • 1...Se1
      • 2.Qxe5#
    • 1...Sf2
      • 2.Qxe5#
    • 1...Sb4
      • 2.Qxe5#
    • 1...Sdc5
      • 2.Qxe5#
  • Tries
    • 1.Rxe5?
      • threat
        • 2.Se8#
        • 2.Bg5#
        • 2.Re6#
      • 1...Sb2
        • 2.Re6#
      • 1...Sd6
        • 2.Bg5#
        • 2.Re6#
      • 1...Sxe5!
    • 1.Qg1?
      • threat
        • 2.Bg5#
        • 2.Qg5#
      • 1...e4
        • 2.Qg5#
      • 1...Ke7!
    • 1.Qa6+?
      • 1...Sd6
        • 2.Qxd6#
      • 1...Ke7!
  • Keys
    • 1.Qd4!
      • 1...Ke7
        • 2.Bg5#
      • 1...fxe3
        • 2.Qh4#
      • 1...exd4
        • 2.Re6#
      • 1...Sb2
        • 2.Qxe5#
      • 1...Sc1
        • 2.Qxe5#
      • 1...Se1
        • 2.Qxe5#
      • 1...Sf2
        • 2.Qxe5#
      • 1...Sb4
        • 2.Qxe5#
      • 1...Sdc5
        • 2.Qxe5#
      • 1...Sa5
        • 2.Qd6#
        • 2.Qd8#
      • 1...Sbc5
        • 2.Qd8#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sd8
        • 2.Qxd8#
      • 1...f3
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(A),XP(c)
  • Tries
    • Try
      • R(B);XP(c)
      • Threat
        • DUALS(3)
      • Vars
        • S(a);::R1(B)
      • Refutation
        • S(a);P_SPINS(a),XR(B)
    • Try
      • Q(A);N_PINP(c)
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::QAB1(A)
      • Refutation
        • K(d);P_SPINP(c),S_FLIGHT
    • Try
      • Q(A);CHECK,N_PINP(c)
      • Vars
        • S(e);N_GUARD,P_SPINS(e)::QAR2(A),XS(e)
      • Refutation
        • K(d);P_SPINP(c),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(d);S_FLIGHT::B(D)
      • P(b);OGATE,XR(B)::QAB(A)
      • P(c);N_SPINP(c),OGATE,XQ(A)::R1(B)
      • S(a);N_GUARD::QAB1(A),XP(c)
      • S(e);N_GUARD::QAB(A)
      • S(e);N_GUARD::QAR2(A),XS(e)
      • S(e);N_GUARD::QAB(A),XS(e)
      • P(b);OGATE::QAB(A)
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