MESON Chess Problem Database

Problem Display
PID: 196013 (1K2R3/BpR5/8/2pk1N2/2r3p1/8/1qnPB2p/1Q4b1 w - - 0 1)

Bunka, Vladislav

2nd Comm., Okruzni soutez, 1983-1984

1K2R3/BpR5/8/2pk1N2/2r3p1/8/1qnPB2p/1Q4b1

#2

8 + 9

3485 Sachova skladba 1986

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Qxb7#
    • 1...Qc1
      • 2.Qxb7#
    • 1...Qa3
      • 2.Qxb7#
    • 1...Qc3
      • 2.Qxb7#
    • 1...Qd4
      • 2.Qxb7#
    • 1...Qe5
      • 2.Qxb7#
    • 1...Qg7
      • 2.Qxb7#
    • 1...Qh8
      • 2.Qxb7#
    • 1...Qa2
      • 2.Qxb7#
    • 1...Rd4
      • 2.Rxc5#
    • 1...Bd4
      • 2.Qh1#
    • 1...Sd4
      • 2.Qe4#
  • Tries
    • 1.Qxb2?
      • threat
        • 2.Re5#
        • 2.Qe5#
        • 2.Qxb7#
      • 1...Rc3
        • 2.Qxb7#
      • 1...Rb4
        • 2.Re5#
        • 2.Qe5#
      • 1...Rd4
        • 2.Rxc5#
        • 2.Qxb7#
      • 1...Re4
        • 2.Qxb7#
      • 1...Bd4
        • 2.Qxb7#
      • 1...Sb4
        • 2.Re5#
        • 2.Qe5#
      • 1...b5
        • 2.Re5#
        • 2.Qe5#
      • 1...b6
        • 2.Re5#
        • 2.Qe5#
      • 1...Sd4!
  • Keys
    • 1.d4!
      • threat
        • 2.Re5#
      • 1...Qxd4
        • 2.Qxb7#
      • 1...Rxd4
        • 2.Rxc5#
      • 1...Bxd4
        • 2.Qh1#
      • 1...Sxd4
        • 2.Qe4#
      • 1...cxd4
        • 2.Bxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • Q(b);OGATE::QAB(A),XP(i)
    • Q(b);OGATE,P_PINR(F)::QAB(A),XP(i)
    • Q(b);OGATE,P_PINR(H)::QAB(A),XP(i)
    • R(e);N_GUARD,S_CUTB(a)::R1(F),XP(g)
    • B(a);OGATE::QAB(A)
    • S(c);OGATE::QAB1(A)
  • Tries
    • Try
      • Q(A);XQ(b)
      • Threat
        • DUALS(3)
      • Vars
        • R(e);::QAB(A),XP(i)
        • B(a);::QAB(A),XP(i)
      • Refutation
        • S(c);
  • Actual
    • P(B);
    • Threat
      • R1(H)
    • Vars
      • Q(b);OGATE,XP(B)::QAB(A),XP(i)
      • R(e);N_GUARD,XP(B)::R1(F),XP(g)
      • B(a);OGATE,XP(B)::QAB(A)
      • S(c);OGATE,XP(B)::QAB1(A)
      • P(g);XP(B)::B(C),XR(e)
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