MESON Chess Problem Database

Problem Display
PID: 135937 (B1r5/3R4/2p2b2/1b6/2k5/Q4K2/2P5/1r2B3 w - - 0 1)

Ancin, Andrej

L'ud, 1965

B1r5/3R4/2p2b2/1b6/2k5/Q4K2/2P5/1r2B3

#2

6 + 6

14649 Andrej Ancin - Chess Compositions 2008

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qb4#
    • 1...Rc1
      • 2.Qb4#
    • 1...Rd1
      • 2.Qb4#
    • 1...Rb3+
      • 2.cxb3#
    • 1...Rb4
      • 2.Qxb4#
    • 1...Bb2
      • 2.Qb4#
    • 1...Bc3
      • 2.Qxc3#
    • 1...Bh4
      • 2.Qc3#
    • 1...Bg5
      • 2.Qc3#
    • 1...Be7
      • 2.Qc3#
    • 1...Bd8
      • 2.Qc3#
    • 1...c5
      • 2.Qd3#
  • Keys
    • 1.Bf2!
      • threat
        • 2.Qc5#
      • 1...Rb3+
        • 2.Qxb3#
      • 1...Rb4
        • 2.Qd3#
      • 1...Bd4
        • 2.Rxd4#
      • 1...Be7
        • 2.Rd4#
      • 1...c5
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(a);N_GUARD::QAR1(C)
    • R(a);CHECK,OGATE::P(B),XR(a)
    • R(a);N_GUARD::QAR1(C),XR(a)
    • B(e);S_CUTR(a)::QAR1(C)
    • B(e);N_GUARD::QAR1(C),XB(e)
    • B(e);N_GUARD::QAR1(C)
    • P(d);SBLOCK::QAB1(C)
  • Actual
    • B(A);
    • Threat
      • QAR1(C)
    • Vars
      • R(a);CHECK,N_GUARD::QAB1(C),XR(a)
      • R(a);SBLOCK::QAB1(C)
      • B(e);N_GUARD::R1(E),XB(e)
      • B(e);N_GUARD::R1(E)
      • P(d);OGATE::B(F)
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