MESON Chess Problem Database

Problem Display
PID: 172038 (5q2/1P1R4/3bpp2/N1p2Q2/p1Pkp3/r4P1p/1P3P1K/1bB2B2 w - - 0 1)

Apro, Laszlo

2nd Prize, Budapesti Sakkszovetseg, 1963

5q2/1P1R4/3bpp2/N1p2Q2/p1Pkp3/r4P1p/1P3P1K/1bB2B2

#2

11 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Bf4?
      • threat
        • 2.Sc6#
      • 1...Qc8
        • 2.Rxd6#
      • 1...Rd3
        • 2.Qxe4#
      • 1...Bd3!
    • 1.Qf4?
      • threat
        • 2.Sc6#
      • 1...Qc8
        • 2.Rxd6#
        • 2.Qxd6#
      • 1...Bd3
        • 2.Be3#
      • 1...Rd3!
    • 1.Qe5+?
      • 1...fxe5
        • 2.Sc6#
      • 1...Kxe5!
    • 1.f4?
      • threat
        • 2.Sc6#
      • 1...Qc8
        • 2.Rxd6#
      • 1...Bd3
        • 2.Be3#
      • 1...Rd3!
  • Keys
    • 1.Kh1!
      • threat
        • 2.Sc6#
      • 1...Qc8
        • 2.Rxd6#
      • 1...Rd3
        • 2.Qxe4#
      • 1...Bd3
        • 2.Be3#

FEATURES

  • Static
    • TYPE = WHITE_IN_CHECK
  • Tries
    • Try
      • B(A);P_SPINB(A)
      • Threat
        • S(H)
      • Vars
        • Q(k);N_GUARD::R(K),XB(h)
        • R(b);S_CUTB(a)::QAR1(I),XP(f)
      • Refutation
        • B(a);
    • Try
      • Q(I);P_PINP(f),P_SPINQ(I)
      • Threat
        • S(H)
      • Vars
        • B(a);S_CUTR(b)::B(A)
      • Refutation
        • R(b);
    • Try
      • Q(I);CHECK,P_SPINQ(I)
      • Vars
        • P(j);XQ(I)::S(H)
      • Refutation
        • K(e);N_SPINB(h),S_FLIGHT,XQ(I)
    • Try
      • P(F);P_SPINP(F)
      • Threat
        • S(H)
      • Vars
        • Q(k);N_GUARD::R(K),XB(h)
        • B(a);S_CUTR(b)::B(A)
      • Refutation
        • R(b);
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • S(H)
    • Vars
      • Q(k);N_GUARD::R(K),XB(h)
      • R(b);S_CUTB(a)::QAR1(I),XP(f)
      • B(a);S_CUTR(b)::B(A)
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