MESON Chess Problem Database

Problem Display
PID: 232570 (8/2Kb1B2/2p1pr2/2k2p2/R1P2Nn1/8/1P3b2/3R3Q w - - 0 1)

Heyl, Peter

Freie Presse, 1997

8/2Kb1B2/2p1pr2/2k2p2/R1P2Nn1/8/1P3b2/3R3Q

#2

8 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Sd3#
    • 1...Bc8
      • 2.Qxc6#
    • 1...e5
      • 2.b4#
  • Tries
    • 1.Sxe6+?
      • 1...Bxe6
        • 2.Qxc6#
      • 1...Rxe6!
    • 1.Rxd7?
      • threat
        • 2.Sd3#
        • 2.Qxc6#
      • 1...Bg3
        • 2.Qxc6#
      • 1...e5
        • 2.Sd3#
        • 2.b4#
      • 1...Se5!
    • 1.Qe4?
      • threat
        • 2.Sd3#
        • 2.b4#
      • 1...Be1
        • 2.Sd3#
        • 2.Qd4#
      • 1...Bg3
        • 2.Qd4#
        • 2.b4#
      • 1...Bd4
        • 2.Sd3#
        • 2.Qxd4#
      • 1...Se5
        • 2.Qxe5#
        • 2.b4#
      • 1...fxe4!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qf8#
      • 1...Rxf7
        • 2.Sd3#
      • 1...e5
        • 2.b4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(a);SBLOCK::S(F)
    • B(h);N_GUARD::QAR1(B),XP(e)
    • P(f);::P(C)
  • Tries
    • Try
      • S(F);CHECK,XP(f)
      • Vars
        • B(h);XS(F)::QAR1(B),XP(e)
      • Refutation
        • R(g);XS(F)
    • Try
      • R(A);XB(h)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);P_PINS(F)::QAR1(B),XP(e)
      • Refutation
        • S(b);
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Refutation
        • P(d);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • R(g);XB(H)::S(F)
      • P(f);::P(C)
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