MESON Chess Problem Database

Problem Display
PID: 61122 (4B3/n1Nnp1RP/1P1k1bpp/5b1q/2RBp1p1/6N1/p5rr/K2Q4 w - - 0 1)

Madsen, Arthur Valdemar

Good Companions (November), 1919

4B3/n1Nnp1RP/1P1k1bpp/5b1q/2RBp1p1/6N1/p5rr/K2Q4

#2

10 + 14

3132 The Good Companion Two-Mover 1922

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Sxe4#
    • 1...Bxd4+
      • 2.Qxd4#
    • 1...Se5
      • 2.Bc5#
    • 1...g5
      • 2.Sxf5#
    • 1...e5
      • 2.Bf2#
    • 1...e6
      • 2.Rxd7#
  • Tries
    • 1.Bb2+?
      • 1...Bd4
        • 2.Qxd4#
      • 1...Rd2!
    • 1.Bc3+?
      • 1...Bd4
        • 2.Qxd4#
      • 1...Rd2!
  • Keys
    • 1.h8S!
      • threat
        • 2.Sf7#
      • 1...Bxd4+
        • 2.Qxd4#
      • 1...Be6
        • 2.Sxe4#
      • 1...Se5
        • 2.Bc5#
      • 1...g5
        • 2.Sxf5#
      • 1...e5
        • 2.Bf2#
      • 1...e6
        • 2.Rxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(f);N_GUARD::S(C),XP(d)
    • B(i);CHECK,P_SPINB(i),XB(E)::QAR2(B),XB(i)
    • S(m);N_PINB(E),SBLOCK::QAR(B)+B(E),DCHECK
    • P(j);N_GUARD,S_CUTQ(g)::S(C),XB(f)
    • P(n);N_PINB(E),SBLOCK::QAR(B)+B(E)
    • P(n);OGATE::R1(H),XS(m)
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • B(i);N_GUARD,P_SPINB(i)::QAR2(B),XB(i)
      • Refutation
        • R(b);P_SPINR(b)
    • Try
      • B(E);CHECK
      • Vars
        • B(i);N_GUARD,P_SPINB(i)::QAR2(B),XB(i)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • P(I);
    • Threat
      • S(I)
    • Vars
      • B(i);CHECK,P_SPINB(i),XB(E)::QAR2(B),XB(i)
      • B(f);N_GUARD::S(C),XP(d)
      • S(m);N_PINB(E),SBLOCK::QAR(B)+B(E),DCHECK
      • P(j);N_GUARD,S_CUTQ(g)::S(C),XB(f)
      • P(n);N_PINB(E),SBLOCK::QAR(B)+B(E)
      • P(n);OGATE::R1(H),XS(m)
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