MESON Chess Problem Database

Problem Display
PID: 162662 (1Bb2N2/2r1p3/1Ppp1b2/2p1k1p1/3R1pP1/8/3KP3/6QB w - - 0 1)

Basisty, Mark Borisovich

Frolkin, Andrei

Die Schwalbe, 2015

1Bb2N2/2r1p3/1Ppp1b2/2p1k1p1/3R1pP1/8/3KP3/6QB

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Be6
      • 2.Sg6#
    • 1...f3
      • 2.Qe3#
    • 1...d5
      • 2.Bxc7#
    • 1...e6
      • 2.Sg6#
  • Tries
    • 1.Rd3?
      • threat
        • 2.Qa1#
      • 1...f3
        • 2.Qe3#
      • 1...d5
        • 2.Bxc7#
      • 1...Ra7
        • 2.Qxc5#
      • 1...c4
        • 2.Qd4#
      • 1...Bxg4!
    • 1.Rxd6?
      • threat
        • 2.Qxc5#
      • 1...Kxd6
        • 2.Bxc7#
      • 1...exd6
        • 2.Qa1#
      • 1...Be6
        • 2.Rxe6#
      • 1...c4
        • 2.Qd4#
        • 2.Qc5#
      • 1...f3!
  • Keys
    • 1.Rxf4!
      • threat
        • 2.Qe3#
      • 1...Kxf4
        • 2.Sg6#
      • 1...gxf4
        • 2.Qa1#
      • 1...d5
        • 2.Bxc7#
      • 1...Bf5
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(j);SBLOCK::S(I)
    • P(a);N_GUARD::QAR2(A)
    • P(f);OGATEB,P_SPINR(h)::B(H),XR(h)
    • P(i);SBLOCK::S(I)
  • Tries
    • Try
      • R(E);
      • Threat
        • QAB(A)
      • Vars
        • P(a);N_GUARD::QAR2(A)
        • P(f);OGATEB,P_SPINR(h)::B(H),XR(h)
        • R(h);P_SPINP(f)::QAR2(A),XP(b)
        • P(b);N_GUARD::QAB1(A)
      • Refutation
        • B(j);XP(F)
    • Try
      • R(E);XP(f)
      • Threat
        • QAR2(A),XP(b)
      • Vars
        • K(c);OGATEB,P_SPINR(h),S_FLIGHT,XR(E)::B(H),XR(h)
        • P(i);SBLOCK,XR(E)::QAB(A)
        • B(j);N_GUARD::R1(E),XB(j)
      • Refutation
        • P(a);
  • Actual
    • R(E);XP(a)
    • Threat
      • QAR2(A)
    • Vars
      • K(c);S_FLIGHT,XR(E)::S(I)
      • P(d);SBLOCK,XR(E)::QAB(A)
      • P(f);OGATEB,P_SPINR(h)::B(H),XR(h)
      • B(j);N_GUARD::R1(E),XB(j)
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