MESON Chess Problem Database

Problem Display
PID: 173723 (1nBN1R2/1K1pBqp1/2N1r3/1R2nk1P/6pP/3PPb2/8/b4Q2 w - - 0 1)

Boros, Sandor

Allgemeine Zeitung Chemnitz, 1929

1nBN1R2/1K1pBqp1/2N1r3/1R2nk1P/6pP/3PPb2/8/b4Q2

#2

12 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...g3
      • 2.Qxf3#
    • 1...dxc6
      • 2.Bxe6#
      • 2.Rxf7#
    • 1...d5
      • 2.Bxe6#
    • 1...d6
      • 2.Bxe6#
      • 2.Rxf7#
  • Tries
    • 1.Bxd7?
      • threat
        • 2.Bxe6#
        • 2.Rxf7#
      • 1...Qxf8
        • 2.Bxe6#
      • 1...g3
        • 2.Bxe6#
        • 2.Qxf3#
      • 1...Qf6
        • 2.Bxe6#
      • 1...Sxd7!
    • 1.Rxe5+?
      • 1...Rxe5
        • 2.Rxf7#
      • 1...Bxe5!
  • Keys
    • 1.Bg5!
      • threat
        • 2.e4#
      • 1...dxc6+
        • 2.Rxf7#
      • 1...d5+
        • 2.Se7#
      • 1...d6+
        • 2.Rxf7#
      • 1...g3
        • 2.Qxf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAR2(A),XB(b)
    • P(g);N_PINS(G),N_SPINS(d),OGATE,P_PINB(I),P_SPINR(f)::B(J),XR(f)
  • Tries
    • Try
      • B(J);P_PINR(f),XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • Q(h);N_SPINQ(h),XR(L)::B(J),XR(f)
        • Q(h);::B(J),XR(f)
      • Refutation
        • S(j);N_SPINR(f),XB(J)
    • Try
      • R(E);CHECK,XS(d)
      • Vars
        • R(f);P_SPINP(g),XR(E)::R(L),XQ(h)
      • Refutation
        • B(a);XR(E)
  • Actual
    • B(I);
    • Threat
      • P(C)
    • Vars
      • P(g);CHECK,P_SPINR(f),XS(G)::R(L),XQ(h)
      • P(g);CHECK,N_PINS(G),N_SPINS(d),P_SPINR(f)::S(G)
      • P(g);CHECK,P_SPINR(f)::R(L),XQ(h)
      • P(c);N_GUARD::QAR2(A),XB(b)
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