MESON Chess Problem Database

Problem Display
PID: 104719 (1B3R2/8/q4N1R/pn1Bpk1p/K1Nnrp1P/1ppPQpP1/8/1b2r3 w - - 0 1)

Nesic, Milivoj S

Fleck MT, 1996

1B3R2/8/q4N1R/pn1Bpk1p/K1Nnrp1P/1ppPQpP1/8/1b2r3

#2

11 + 14

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qe6
      • 2.Bxe4#
    • 1...Rc1
      • 2.Qxe4#
    • 1...Rd1
      • 2.Qxe4#
    • 1...Rf1
      • 2.Qxe4#
    • 1...Rg1
      • 2.Qxe4#
    • 1...Rh1
      • 2.Qxe4#
    • 1...Ba2
      • 2.dxe4#
    • 1...Sc2
      • 2.dxe4#
    • 1...Se2
      • 2.Qxe4#
    • 1...Se6
      • 2.Bxe4#
    • 1...c2
      • 2.dxe4#
    • 1...fxg3
      • 2.Qg5#
  • Tries
    • 1.Rg6?
      • threat
        • 2.Rg5#
      • 1...Se6
        • 2.Bxe4#
      • 1...Kxg6!
    • 1.Rg8?
      • threat
        • 2.Rg5#
      • 1...Se6
        • 2.Bxe4#
      • 1...Qxf6!
  • Keys
    • 1.Sxe5!
      • threat
        • 2.Rxh5#
      • 1...Sc2+
        • 2.dxe4#
      • 1...Se2+
        • 2.Qxe4#
      • 1...Sc6+
        • 2.Sxe4#
      • 1...Se6+
        • 2.Bxe4#
      • 1...Rxe5
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • Q(n);SBLOCK::B(G),XR(g)
    • R(b);N_GUARD::QAB1(B),XR(g)
    • B(a);N_GUARD::P(A),XR(g)
    • S(f);P_PINS(E),S_CUTB(a)::P(A),XR(g)
    • S(f);P_PINS(E),S_CUTR(b)::QAB1(B),XR(g)
    • S(f);P_PINS(E),SBLOCK::B(G),XR(g)
    • P(d);S_CUTB(a)::P(A),XR(g)
    • P(h);OGATE,XP(C)::QAR1(B)
  • Tries
    • Try
      • R(I);
      • Threat
        • R1(I)
      • Vars
        • S(f);P_PINS(E),SBLOCK::B(G),XR(g)
      • Refutation
        • K(l);S_FLIGHT,XR(I)
    • Try
      • R(K);
      • Threat
        • R1(K)
      • Vars
        • S(f);P_PINS(E),SBLOCK::B(G),XR(g)
      • Refutation
        • Q(n);XS(H)
  • Actual
    • S(E);XP(k)
    • Threat
      • R(I),XP(m)
    • Vars
      • S(f);CHECK,S_CUTB(a)::P(A),XR(g)
      • S(f);CHECK,S_CUTR(b)::QAB1(B),XR(g)
      • S(f);CHECK,S_CUTQ(n)::R(K)+S(H),XR(g)
      • S(f);CHECK,SBLOCK::B(G),XR(g)
      • R(g);N_GUARD,XS(E)::QAR1(B),XP(h)
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