MESON Chess Problem Database

Problem Display
PID: 59704 (N1B5/2R2nn1/3k2r1/3P2r1/4p3/b2pNP2/6p1/Q4bK1 w - - 0 1)

Barth, Michael

Variantim, 2005

N1B5/2R2nn1/3k2r1/3P2r1/4p3/b2pNP2/6p1/Q4bK1

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd5
      • 2.Sc4#
    • 1...Re5
      • 2.Qxa3#
    • 1...Bc5
      • 2.Rd7#
    • 1...Se5
      • 2.Qxa3#
  • Tries
    • 1.Qd4?
      • threat
        • 2.Sc4#
        • 2.Rd7#
      • 1...Rxd5
        • 2.Sc4#
        • 2.Qxd5#
      • 1...d2
        • 2.Rd7#
      • 1...Se5!
    • 1.Qf6+?
      • 1...Se6
        • 2.Rc6#
      • 1...Rxf6!
    • 1.fxe4?
      • threat
        • 2.Sc4#
      • 1...Bc5
        • 2.Rd7#
      • 1...Se5
        • 2.Qxa3#
      • 1...d2!
    • 1.f4?
      • threat
        • 2.Qxa3#
      • 1...Rxd5
        • 2.Sc4#
      • 1...Bc1
        • 2.Qa6#
      • 1...Bb2
        • 2.Qa6#
      • 1...Bb4
        • 2.Qa6#
      • 1...Bc5
        • 2.Rd7#
      • 1...Se6!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Rd7#
      • 1...Rxd5
        • 2.Sc4#
      • 1...Se5
        • 2.Qxa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • R(f);SBLOCK,XP(E)::S(C)
    • R(f);SBLOCK::QAB(A),XB(c)
    • B(c);P_PINS(C),SBLOCK::R1(F)
    • S(i);SBLOCK::QAB(A),XB(c)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);::R1(F)
      • Refutation
        • S(i);
    • Try
      • Q(A);CHECK
      • Vars
        • S(j);P_SPINS(j)::R1(F)
      • Refutation
        • R(h);XQ(A)
    • Try
      • P(D);XP(e)
      • Threat
        • S(C)
      • Vars
        • B(c);P_PINS(C),SBLOCK::R1(F)
        • S(i);SBLOCK::QAB(A),XB(c)
      • Refutation
        • P(d);
    • Try
      • P(D);
      • Threat
        • QAB(A),XB(c)
      • Vars
        • R(f);SBLOCK,XP(E)::S(C)
        • B(c);OGATE::QAR(A)
        • B(c);P_PINS(C),SBLOCK::R1(F)
      • Refutation
        • S(j);
  • Actual
    • Q(A);
    • Threat
      • R1(F)
    • Vars
      • R(f);SBLOCK,XP(E)::S(C)
      • S(i);SBLOCK::QAB(A),XB(c)
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