MESON Chess Problem Database

Problem Display
PID: 244446 (2Br4/6p1/r1N2np1/3pp1R1/1p3k1P/b2n2p1/2b1R1P1/Q4K2 w - - 0 1)

Eerkes, Allard Pieter

Magyar Sakkvilag, 1937

2Br4/6p1/r1N2np1/3pp1R1/1p3k1P/b2n2p1/2b1R1P1/Q4K2

#2

8 + 13

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sc1
      • 2.Qxe5#
    • 1...Se1
      • 2.Qxe5#
    • 1...Sb2
      • 2.Qc1#
    • 1...Sf2
      • 2.Qxe5#
    • 1...Sc5
      • 2.Qxe5#
    • 1...Se4
      • 2.Rg4#
    • 1...Sg4
      • 2.Rxg4#
    • 1...Sh5
      • 2.Rg4#
    • 1...Sh7
      • 2.Rg4#
    • 1...Se8
      • 2.Rg4#
    • 1...Sg8
      • 2.Rg4#
  • Tries
    • 1.Qd4+?
      • 1...Se4
        • 2.Rg4#
        • 2.Qe3#
      • 1...e4
        • 2.Qe3#
      • 1...exd4!
    • 1.Qe1?
      • threat
        • 2.Qd2#
        • 2.Qxg3#
      • 1...Bc1
        • 2.Qxg3#
      • 1...Sf2
        • 2.Qd2#
      • 1...Se4
        • 2.Rg4#
      • 1...Sg4
        • 2.Rxg4#
      • 1...Sh5
        • 2.Rg4#
        • 2.Qd2#
      • 1...e4
        • 2.Qxg3#
      • 1...Sxe1!
  • Keys
    • 1.Se7!
      • threat
        • 2.Sxg6#
      • 1...Sc1
        • 2.Qxe5#
      • 1...Se1
        • 2.Qxe5#
      • 1...Sb2
        • 2.Qc1#
      • 1...Sf2
        • 2.Qxe5#
      • 1...Sc5
        • 2.Qxe5#
      • 1...Se4
        • 2.Rg4#
      • 1...Sg4
        • 2.Rxg4#
      • 1...Sh5
        • 2.Rg4#
      • 1...Sd7
        • 2.Sxd5#
      • 1...Sh7
        • 2.Rg4#
      • 1...Se8
        • 2.Rg4#
      • 1...Sg8
        • 2.Rg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAB1(A),XP(h)
    • S(c);N_GUARD,S_CUTB(b)::QAB(A)
    • S(j);N_GUARD::R1(F)
    • S(j);N_GUARD::R1(F),XS(j)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • P(h);P_SPINP(h)::QAB1(A)
      • Refutation
        • P(h);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);::QAB1(A),XP(d)
        • S(c);::QAB(A)
        • S(j);N_GUARD::R1(F)
        • S(j);N_GUARD::R1(F),XS(j)
        • P(h);::QAB1(A),XP(d)
      • Refutation
        • S(c);XQ(A)
  • Actual
    • S(G);
    • Threat
      • S(G),XP(k)
    • Vars
      • S(c);N_GUARD::QAB1(A),XP(h)
      • S(c);N_GUARD,S_CUTB(b)::QAB(A)
      • S(j);N_GUARD::R1(F)
      • S(j);N_GUARD::R1(F),XS(j)
      • S(j);N_GUARD,S_CUTR(m)::S(G),XP(g)
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