MESON Chess Problem Database

Problem Display
PID: 166102 (8/p7/P1P1pp2/1B1PrR1P/2N1kP2/2Q1p1P1/4p2N/4K3 w - - 0 1)

Apro, Laszlo

Skakbladet, 1931

8/p7/P1P1pp2/1B1PrR1P/2N1kP2/2Q1p1P1/4p2N/4K3

#2

12 + 7

15148 Sadier Collection 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf5
      • 2.Sd6#
    • 1...exd5
      • 2.Sd6#
  • Tries
    • 1.Sxe5?
      • threat
        • 2.Qd3#
      • 1...Kxf5
        • 2.Bd3#
        • 2.Qc2#
        • 2.Qd3#
      • 1...Kxd5!
    • 1.Qd4+?
      • 1...Kxf5
        • 2.Sd6#
        • 2.g4#
      • 1...Kxd4!
    • 1.Qxe5+?
      • 1...Kd3
        • 2.Sa3#
        • 2.Sxe3#
      • 1...fxe5!
    • 1.Qxe3+?
      • 1...Kxf5
        • 2.Sd6#
        • 2.g4#
      • 1...Kxd5!
  • Keys
    • 1.Qb4!
      • 1...Kd3
        • 2.Sa3#
      • 1...Kd4
        • 2.Sb6#
      • 1...Kxd5
        • 2.Sxe3#
      • 1...Kxf5
        • 2.Sd6#
      • 1...Rxd5
        • 2.Sd6#
      • 1...Rxf5
        • 2.Sb6#
      • 1...exd5
        • 2.Sd6#
      • 1...exf5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XR(I)::S(E)
    • P(e);SBLOCK,XP(H)::S(E)
  • Tries
    • Try
      • S(E);XR(d)
      • Threat
        • QAB1(C)
      • Refutation
        • K(c);S_FLIGHT,XP(H)
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);P-FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK,XR(d)
      • Refutation
        • P(f);XQ(C)
    • Try
      • Q(C);CHECK,XP(b)
      • Refutation
        • K(c);P_SPINR(d),S_FLIGHT,XP(H)
  • Actual
    • Q(C);
    • Vars
      • K(c);S_FLIGHT::B(G)+S(E)
      • K(c);P-FLIGHT::QAR(C)+S(E)
      • K(c);P_SPINR(d),S_FLIGHT,XP(H)::S(E),XP(b)
      • K(c);S_FLIGHT,XR(I)::S(E)
      • R(d);XP(H)::QAR(C)+S(E),DCHECK
      • R(d);SBLOCK,XR(I)::QAR(C)+S(E)
      • P(e);SBLOCK,XP(H)::QAR(C)+S(E),DCHECK
      • P(e);SBLOCK,XR(I)::QAR(C)+S(E)
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