MESON Chess Problem Database

Problem Display
PID: 232589 (8/B4b2/8/1N2p1nB/KQ4rn/1p4R1/3PkN2/R7 w - - 0 1)

Heyl, Peter

Freie Presse, 2005

8/B4b2/8/1N2p1nB/KQ4rn/1p4R1/3PkN2/R7

#2

9 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Be3?
      • threat
        • 2.Sc3#
      • 1...Be8
        • 2.Qc4#
      • 1...Se4!
    • 1.Rd3?
      • threat
        • 2.Sc3#
      • 1...Se4
        • 2.Qxe4#
      • 1...Be8!
    • 1.Qc4+?
      • 1...Kxd2
        • 2.Be3#
        • 2.Rd1#
      • 1...Bxc4!
    • 1.Qe4+?
      • 1...Kxd2
        • 2.Rd1#
      • 1...Sxe4!
  • Keys
    • 1.Rd1!
      • threat
        • 2.Sc3#
      • 1...Be8
        • 2.Qc4#
      • 1...Se4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(I);
      • Threat
        • S(G)
      • Vars
        • B(g);N_GUARD,P_PINS(G)::QAB(F)
      • Refutation
        • S(f);N_PINQ(F)
    • Try
      • R(D);
      • Threat
        • S(G)
      • Vars
        • S(f);N_GUARD,N_PINQ(F)::QAR2(F),XS(f)
      • Refutation
        • B(g);P_PINS(G)
    • Try
      • Q(F);CHECK
      • Refutation
        • B(g);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(a);N_SPINR(c),P-FLIGHT,XP(B)::R1(A)
      • Refutation
        • S(f);XQ(F)
  • Actual
    • R(A);
    • Threat
      • S(G)
    • Vars
      • B(g);N_GUARD,P_PINS(G)::QAB(F)
      • S(f);N_GUARD,N_PINQ(F)::QAR2(F),XS(f)
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