MESON Chess Problem Database

Problem Display
PID: 194782 (2Q2n2/7p/1p1R2p1/2rbp1N1/1PNkp3/1Kp1pp2/2P5/3nB2q w - - 0 1)

Ersek, Tibor

Die Schwalbe, 2018

2Q2n2/7p/1p1R2p1/2rbp1N1/1PNkp3/1Kp1pp2/2P5/3nB2q

#2

8 + 14

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Qxc4#
    • 1...Sb2
      • 2.Bxc3#
    • 1...Sf2
      • 2.Bxc3#
    • 1...Se6
      • 2.Sxe6#
    • 1...Sd7
      • 2.Se6#
    • 1...b5
      • 2.Qxc5#
  • Tries
    • 1.Bg3?
      • threat
        • 2.Bxe5#
      • 1...Rxc4
        • 2.Qxc4#
      • 1...Sd7
        • 2.Se6#
      • 1...Qh2!
    • 1.Qf5?
      • threat
        • 2.Qxe4#
        • 2.Qxe5#
      • 1...Rxc4
        • 2.Qxe4#
      • 1...Qh2
        • 2.Qxe4#
      • 1...Qh4
        • 2.Qxe5#
      • 1...Sf2
        • 2.Bxc3#
        • 2.Qxe5#
      • 1...Sd7
        • 2.Se6#
        • 2.Qxe4#
      • 1...f2
        • 2.Qxe5#
      • 1...gxf5!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Qxe4#
      • 1...Qh4
        • 2.Sxf3#
      • 1...Sf2
        • 2.Bxc3#
      • 1...f2
        • 2.Qxd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • R(h);OGATE,XS(E)::QAR1(H),XR(h)
    • S(a);N_GUARD::B(A),XP(c)
    • S(n);N_GUARD::S(F),XS(n)
    • S(n);N_GUARD::S(F)
    • P(k);N_GUARD::QAB1(H),XR(h)
  • Tries
    • Try
      • B(A);
      • Threat
        • B(A),XP(j)
      • Vars
        • R(h);OGATE,XS(E)::QAR1(H),XR(h)
        • S(n);N_GUARD::S(F)
      • Refutation
        • Q(b);
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);XS(E)::QAR1(H),XP(g)
        • Q(b);::QAR1(H),XP(g)
        • Q(b);::QAB1(H),XP(j)
        • P(e);::QAB1(H),XP(j)
      • Refutation
        • P(l);XQ(H)
  • Actual
    • Q(H);P_PINP(g)
    • Threat
      • QAR1(H),XP(g)
    • Vars
      • Q(b);N_GUARD::S(F),XP(e)
      • S(a);N_GUARD::B(A),XP(c)
      • P(e);OGATE::QAR(H),XS(a)
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