MESON Chess Problem Database

Problem Display
PID: 104503 (8/8/1bqP1PBp/1r3r1n/1pP2k1K/3Q1P1p/1pN2pRp/8 w - - 0 1)

Nesic, Milivoj S

Suomen Tehtavaniekat-50 JT, 1985

8/8/1bqP1PBp/1r3r1n/1pP2k1K/3Q1P1p/1pN2pRp/8

#2

9 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Qxe4#
    • 1...Qd7
      • 2.Qe4#
    • 1...Qc5
      • 2.Qe4#
    • 1...Qxd6
      • 2.Qe4#
    • 1...Qc7
      • 2.Qe4#
    • 1...Qc8
      • 2.Qe4#
    • 1...Rbc5
      • 2.Qe3#
    • 1...Rbd5
      • 2.Qe4#
    • 1...Rbe5
      • 2.Rg4#
    • 1...Rfc5
      • 2.Qe3#
    • 1...Rfd5
      • 2.Qe4#
    • 1...Rfe5
      • 2.Rg4#
    • 1...Be3
      • 2.Qxe3#
    • 1...Ba5
      • 2.Qe3#
    • 1...Bc5
      • 2.Qxf5#
    • 1...Bc7
      • 2.Qe3#
    • 1...Bd8
      • 2.Qe3#
  • Tries
    • 1.Qd4+?
      • 1...Kxf3
        • 2.Rxf2#
        • 2.Qg4#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Bxd4!
  • Keys
    • 1.c5!
      • threat
        • 2.Qxf5#
        • 2.Qe3#
      • 1...Ke5
        • 2.Qxf5#
      • 1...Qxf3
        • 2.Qxf5#
      • 1...Qxc5
        • 2.Qe4#
      • 1...Rbxc5
        • 2.Qe3#
      • 1...Rfxc5
        • 2.Qe3#
      • 1...Rxf6
        • 2.Qe3#
      • 1...Bxc5
        • 2.Qxf5#
      • 1...f1S
        • 2.Qxf5#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qd5
        • 2.Qe3#
      • 1...Qd7
        • 2.Qe4#
        • 2.Qe3#
      • 1...Qe8
        • 2.Qxf5#
      • 1...Qc8
        • 2.Qe4#
        • 2.Qe3#
      • 1...Rd5
        • 2.Qe4#
        • 2.Qe3#
      • 1...Re5
        • 2.Rg4#
      • 1...Rg5
        • 2.Qe3#
      • 1...Sg3
        • 2.Qe3#
      • 1...Sg7
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 11
  • Sets
    • Q(k);N_GUARD::QAR1(C),XQ(k)
    • Q(k);N_GUARD::QAR1(C)
    • Q(k);N_GUARD,XP(G)::QAR1(C)
    • R(g);S_CUTB(j)::QAB1(C)
    • R(g);S_CUTQ(k)::QAR1(C)
    • R(g);SBLOCK::R1(B)
    • R(h);S_CUTB(j)::QAB1(C)
    • R(h);S_CUTQ(k)::QAR1(C)
    • R(h);SBLOCK::R1(B)
    • B(j);N_GUARD::QAB1(C),XB(j)
    • B(j);N_GUARD::QAB1(C)
    • B(j);S_CUTR(g)::QAR1(C),XR(h)
    • B(j);N_GUARD,P_PINP(H)::QAB1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • Q(k);N_GUARD,P_SPINQ(k)::QAR1(C),XQ(k)
      • Refutation
        • B(j);XQ(C)
  • Actual
    • P(E);
    • Threat
      • DUALS(2)
    • Vars
      • K(f);S_FLIGHT::QAR1(C),XR(h)
      • Q(k);SBLOCK,XP(D)::QAR1(C),XR(h)
      • Q(k);N_GUARD,XP(E)::QAR1(C)
      • R(g);XP(E)::QAB1(C)
      • R(h);XP(E)::QAB1(C)
      • R(h);XP(H)::QAB1(C)
      • B(j);XP(E)::QAR1(C),XR(h)
      • P(b);::QAR1(C),XR(h)
      • Q(k);N_GUARD::QAR1(C),XQ(k)
      • Q(k);::QAB1(C)
      • Q(k);::QAR1(C),XR(h)
      • R(h);SBLOCK::R1(B)
      • R(h);::QAB1(C)
      • S(i);::QAB1(C)
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