MESON Chess Problem Database

Problem Display
PID: 166950 (5Q2/6p1/3Rp1pb/2pN4/4k3/1pP2RBP/1p3P2/rb3N1K w - - 0 1)

Kovacevic, Marjan

Phenix, 2017

5Q2/6p1/3Rp1pb/2pN4/4k3/1pP2RBP/1p3P2/rb3N1K

#2

10 + 10

133 The Problemist Supplement 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Sxd2#
    • 1...Be3
      • 2.Rxe3#
    • 1...Bf4
      • 2.Qxf4#
    • 1...exd5
      • 2.Re6#
    • 1...g5
      • 2.Sd2#
      • 2.Re3#
  • Tries
    • 1.Sde3?
      • threat
        • 2.Sd2#
      • 1...Bxe3
        • 2.Rxe3#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Ba2
        • 2.Qa8#
      • 1...Bd3
        • 2.Rxe6#
      • 1...Bc2!
    • 1.Sb6?
      • threat
        • 2.Rxe6#
      • 1...Bf4
        • 2.Qxf4#
      • 1...Be3
        • 2.Rxe3#
      • 1...e5!
    • 1.Bf4?
      • threat
        • 2.Sd2#
        • 2.Re3#
      • 1...Bxf4
        • 2.Qxf4#
      • 1...Ba2
        • 2.Re3#
      • 1...Bc2
        • 2.Re3#
      • 1...Bd3
        • 2.Re3#
      • 1...Kxf3!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Re3#
      • 1...Kxf3
        • 2.Sd2#
      • 1...Ke5
        • 2.Rxe6#
      • 1...Bxf4
        • 2.Qxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • B(i);N_GUARD::S(A),XB(i)
    • B(i);N_GUARD::R1(E),XB(i)
    • B(i);N_GUARD::QAR1(J),XB(i)
    • P(g);SBLOCK,XS(H)::R(I)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(A)
      • Vars
        • B(i);OGATE,XS(H)::R1(E),XB(i)
        • B(i);N_GUARD::QAR1(J),XB(i)
        • B(b);P_PINS(A),S_CUTR(a)::QAB(J)
        • B(b);P_PINS(A),SBLOCK::R(I),XP(g)
      • Refutation
        • B(b);P_PINS(A)
    • Try
      • S(H);
      • Threat
        • R(I),XP(g)
      • Vars
        • B(i);N_GUARD::QAR1(J),XB(i)
        • B(i);N_GUARD::R1(E),XB(i)
      • Refutation
        • P(g);
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(i);OGATE,XB(F)::QAR1(J),XB(i)
        • B(b);P_PINS(A)::R1(E)
      • Refutation
        • K(e);S_FLIGHT,XR(E)
  • Actual
    • S(H);
    • Threat
      • R1(E)
    • Vars
      • K(e);S_FLIGHT,XR(E)::S(A)
      • K(e);P-FLIGHT::R1(I),XP(g)
      • B(i);OGATE,XS(H)::QAR1(J),XB(i)
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