MESON Chess Problem Database

Problem Display
PID: 273955 (6nr/2p1r3/1p4Q1/1R1PkP1N/1P3bP1/7n/3R3B/2K1N2B w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 2023

6nr/2p1r3/1p4Q1/1R1PkP1N/1P3bP1/7n/3R3B/2K1N2B

#2

12 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Qxe6#
    • 1...Rd7
      • 2.Qe6#
    • 1...Rf7
      • 2.Qe6#
    • 1...Rg7
      • 2.Qe6#
    • 1...Reh7
      • 2.Qe6#
    • 1...Sg1
      • 2.Bxf4#
    • 1...Sf2
      • 2.Bxf4#
    • 1...Sg5
      • 2.Bxf4#
    • 1...Sf6
      • 2.Qxf6#
    • 1...Sh6
      • 2.Qf6#
    • 1...c5
      • 2.dxc5 ep#
    • 1...c6
      • 2.dxc6#
  • Tries
    • 1.Sxf4?
      • threat
        • 2.Sxh3#
      • 1...Sg1
        • 2.Sh3#
        • 2.Sh5#
      • 1...Sf2
        • 2.Sh3#
        • 2.Sh5#
      • 1...Sg5
        • 2.Sh3#
        • 2.Sh5#
      • 1...Sxf4!
    • 1.Qc6?
      • threat
        • 2.d6#
      • 1...Sf6
        • 2.Qxf6#
      • 1...Rxh5!
  • Keys
    • 1.Qxb6!
      • threat
        • 2.Sd3#
      • 1...cxb6
        • 2.d6#
      • 1...c6
        • 2.dxc6#
      • 1...Sf2
        • 2.Bxf4#
      • 1...c5
        • 2.dxc5 ep#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • R(f);N_GUARD::QAR1(L),XR(f)
    • R(f);N_GUARD::QAR1(L)
    • S(a);N_GUARD::B(E),XB(b)
    • S(g);N_GUARD::QAB1(L),XS(g)
    • S(g);N_GUARD::QAB1(L)
    • P(e);OGATE::R(H)+P(I),XP(e),EP
    • P(e);OGATE::R(H)+P(I),XP(e)
  • Tries
    • Try
      • S(K);N_SPINR(D),XB(b)
      • Threat
        • B(E)+S(K),XS(a)
      • Refutation
        • S(a);P_SPINS(a),XS(K)
    • Try
      • Q(L);
      • Threat
        • R(H)+P(I)
      • Vars
        • S(g);N_GUARD::QAB1(L),XS(g)
      • Refutation
        • R(h);XS(K)
  • Actual
    • Q(L);XP(d)
    • Threat
      • S(B)
    • Vars
      • P(e);N_GUARD,XQ(L)::R(H)+P(I)
      • P(e);OGATE::R(H)+P(I),XP(e)
      • S(a);N_GUARD::B(E),XB(b)
      • P(e);OGATE::R(H)+P(I),XP(e),EP
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Developed and maintained by Brian Stephenson.
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