MESON Chess Problem Database

Problem Display
PID: 275102 (bN1b4/2pN4/6qr/1kPpR3/3B2p1/Q2P4/1rp1B1Kn/n7 w - - 0 1)

Bogdanov, Evgeny Mikhailovich

Mat, 1980

bN1b4/2pN4/6qr/1kPpR3/3B2p1/Q2P4/1rp1B1Kn/n7

#2

9 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd3
      • 2.Bxd3#
    • 1...Qe4+
      • 2.dxe4#
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qa5#
      • 1...Qe4+
        • 2.dxe4#
      • 1...d4+
        • 2.c6#
      • 1...Qxd3
        • 2.Bxd3#
      • 1...Qa6
        • 2.d4#
      • 1...Qb6
        • 2.d4#
      • 1...Ra2
        • 2.Qb4#
      • 1...Rb4
        • 2.Qxb4#
      • 1...Sb3
        • 2.Qb4#
      • 1...c6
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • Q(h);OGATE,P_SPINQ(h),XP(D)::B(A),XQ(h)
    • Q(h);CHECK,OGATE::B(A)+P(D),XQ(h)
  • Actual
    • B(E);
    • Threat
      • QAR1(C)
    • Vars
      • Q(h);CHECK,OGATE::B(A)+P(D),XQ(h)
      • P(g);CHECK::R(G)+P(F)
      • Q(h);OGATE,P_SPINQ(h),XP(D)::B(A),XQ(h)
      • Q(h);N_GUARD::B(A)+P(D)
      • R(b);N_GUARD::QAR1(C)
      • R(b);N_GUARD::QAR1(C),XR(b)
      • S(a);S_CUTR(b)::QAR1(C)
      • P(j);S_CUTQ(h)::QAB1(C)
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