MESON Chess Problem Database

Problem Display
PID: 232676 (3R4/3n4/p6B/K1p5/2B3nR/1pkp1P2/1pNNpp2/1Q2b3 w - - 0 1)

Dittrich, Stefan

Freie Presse, 1983

3R4/3n4/p6B/K1p5/2B3nR/1pkp1P2/1pNNpp2/1Q2b3

#2

9 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Rxd3#
    • 1...Sf6
      • 2.Rxd3#
    • 1...Sb8
      • 2.Rxd3#
    • 1...Sf8
      • 2.Rxd3#
  • Tries
    • 1.Sa3?
      • threat
        • 2.Qxd3#
      • 1...Kd4
        • 2.Qxb2#
      • 1...Sde5
        • 2.Se4#
      • 1...Sge5!
    • 1.Sb4?
      • threat
        • 2.Qxd3#
      • 1...Kd4
        • 2.Qxb2#
      • 1...Sge5
        • 2.Sd5#
      • 1...Sde5!
  • Keys
    • 1.Se3!
      • threat
        • 2.Qxd3#
      • 1...Kxd2
        • 2.Qxb2#
      • 1...Kd4
        • 2.Qxb2#
      • 1...Sge5
        • 2.Sd5#
      • 1...Sde5
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • S(k);OGATE::R1(I),XP(g)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(A),XP(g)
      • Vars
        • K(f);P_PINS(C),P_SPINS(h),S_FLIGHT::QAB(A),XP(b)
        • S(k);::S(C)
      • Refutation
        • S(h);
    • Try
      • S(B);
      • Threat
        • QAR1(A),XP(g)
      • Vars
        • K(f);P_SPINS(h),S_FLIGHT::QAB(A),XP(b)
        • S(h);::S(B)
      • Refutation
        • S(k);
  • Actual
    • S(B);
    • Threat
      • QAR1(A),XP(g)
    • Vars
      • K(f);S_FLIGHT,XS(C)::QAR2(A),XP(b)
      • K(f);P_PINS(C),P_SPINS(h),S_FLIGHT::QAB(A),XP(b)
      • S(h);::S(B)
      • S(k);::S(C)
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