MESON Chess Problem Database

Problem Display
PID: 259079 (K7/2p2p2/8/PR1RB3/P1k1p3/1N3q2/n2P4/1B1Q2b1 w - - 0 1)

Kovacevic, Marjan

1st Prize, Belyakin-100 MT, 2021

K7/2p2p2/8/PR1RB3/P1k1p3/1N3q2/n2P4/1B1Q2b1

#2

10 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qh1
      • 2.Qe2#
      • 2.Qf1#
    • 1...Qe2
      • 2.Qxe2#
    • 1...Qf1
      • 2.Qxf1#
    • 1...Qxb3
      • 2.Qxb3#
    • 1...Qf4
      • 2.Qe2#
    • 1...Qf5
      • 2.Qe2#
    • 1...Qf6
      • 2.Qe2#
    • 1...Bh2
      • 2.Rd4#
      • 2.Rdc5#
    • 1...Bd4
      • 2.Rxd4#
    • 1...Bc5
      • 2.Rdxc5#
    • 1...e3
      • 2.Bd3#
      • 2.d3#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Rdc5#
      • 1...Bxd4
        • 2.Rxd4#
      • 1...c5
        • 2.Rdxc5#
      • 1...e3
        • 2.Qb3#
      • 1...Qa3!
    • 1.Bd4?
      • threat
        • 2.Rdc5#
      • 1...Qxb3
        • 2.Qxb3#
      • 1...Bxd4
        • 2.Rxd4#
      • 1...c5
        • 2.Rdxc5#
      • 1...Qf5
        • 2.Qe2#
      • 1...e3
        • 2.d3#
      • 1...Qh5!
    • 1.Qxf3?
      • threat
        • 2.Qe2#
        • 2.Qf1#
      • 1...exf3
        • 2.Bd3#
        • 2.d3#
      • 1...Bc5
        • 2.Rdxc5#
      • 1...Bf2
        • 2.Qe2#
      • 1...Sc1
        • 2.Qc3#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Sb4
        • 2.Qc3#
      • 1...e3
        • 2.Bd3#
        • 2.Rd4#
        • 2.Rdc5#
        • 2.Qe2#
        • 2.Qe4#
        • 2.Qg4#
        • 2.Qf4#
        • 2.d3#
      • 1...c5!
    • 1.d3+?
      • 1...exd3
        • 2.Sd2#
      • 1...Qxd3!
  • Keys
    • 1.d4!
      • threat
        • 2.Rdc5#
      • 1...Kc3
        • 2.Qc2#
      • 1...Bxd4
        • 2.Qxd4#
      • 1...exd4 ep
        • 2.Sd2#
      • 1...c5
        • 2.Rdxc5#
      • 1...e3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::QAB(B),XQ(c)
    • Q(c);OGATE,XS(D)::QAB1(B),XQ(c)
    • Q(c);N_GUARD::QAB(B)
    • B(a);N_GUARD::R1(H),XB(a)
  • Tries
    • Try
      • S(D);
      • Threat
        • R1(H)
      • Vars
        • B(a);OGATE,XS(D)::R1(H),XB(a)
        • P(f);::R1(H),XP(f)
        • P(e);P_PINR(H),S_CUTQ(c)::QAB1(B)
      • Refutation
        • Q(c);
    • Try
      • B(I);
      • Threat
        • R1(H)
      • Vars
        • Q(c);OGATE,XS(D)::QAB1(B),XQ(c)
        • B(a);OGATE,XB(I)::R1(H),XB(a)
        • P(f);::R1(H),XP(f)
        • Q(c);N_GUARD::QAB(B)
        • P(e);N_GUARD,P_PINR(H),S_CUTQ(c)::P(C)
      • Refutation
        • Q(c);
    • Try
      • Q(B);XQ(c)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD::R1(H),XB(a)
        • B(a);::QAB(B)
        • S(b);N_GUARD::QAR1(B)
        • S(b);N_GUARD::QAR1(B),XS(b)
      • Refutation
        • P(f);
    • Try
      • P(C);CHECK
      • Vars
        • P(e);P_PINR(H),XP(C)::S(D)
      • Refutation
        • Q(c);XP(C)
  • Actual
    • P(C);
    • Threat
      • R1(H)
    • Vars
      • K(d);P-FLIGHT,S_CUTQ(c),S_CUTS(b)::QAR1(B)
      • B(a);OGATE,XP(C)::QAR1(B),XB(a)
      • P(e);EP,P_PINR(H),XP(C)::S(D)
      • P(f);::R1(H),XP(f)
      • P(e);N_GUARD,P_PINR(H),S_CUTQ(c)::QAB1(B)
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