MESON Chess Problem Database

Problem Display
PID: 244871 (bK4n1/5B1p/4R3/5R2/NP3PP1/1PBk2rq/3p1P2/2bQn2r w - - 0 1)

Slesarenko, Anatoly Vasilevich

1/2 Prize, 64 Shakhmatnoe obozrenie, 2021

bK4n1/5B1p/4R3/5R2/NP3PP1/1PBk2rq/3p1P2/2bQn2r

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bb2
      • 2.Qxd2#
    • 1...Ba3
      • 2.Qxd2#
    • 1...Bf3
      • 2.Re3#
    • 1...Bd5
      • 2.Rxd5#
    • 1...Sc2
      • 2.Qe2#
    • 1...Sf3
      • 2.Re3#
  • Tries
    • 1.Sb2+?
      • 1...Bxb2
        • 2.Qxd2#
      • 1...Kxc3!
    • 1.Bg6?
      • threat
        • 2.Rd5#
      • 1...Bd5
        • 2.Rxd5#
      • 1...hxg6!
    • 1.Be8?
      • threat
        • 2.Bb5#
      • 1...Bd5
        • 2.Rxd5#
      • 1...Bc6!
    • 1.Re2?
      • threat
        • 2.Bc4#
      • 1...Bd5
        • 2.Rxd5#
      • 1...Re3!
    • 1.Rd6+?
      • 1...Ke4
        • 2.Sc5#
        • 2.Rd4#
      • 1...Bd5!
    • 1.Re7?
      • threat
        • 2.Bc4#
      • 1...Bd5
        • 2.Rxd5#
      • 1...Sxe7!
    • 1.Re8?
      • threat
        • 2.Bc4#
      • 1...Bd5
        • 2.Rxd5#
      • 1...Se7!
  • Keys
    • 1.Re4!
      • threat
        • 2.Rd4#
      • 1...Kxe4
        • 2.Sc5#
      • 1...Bxe4
        • 2.Bc4#
      • 1...Sc2
        • 2.Qe2#
      • 1...Sf3
        • 2.Re3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::QAR1(A),XP(d)
    • B(i);S_CUTR(f)::R1(J)
    • B(i);N_GUARD::R(I),XB(i)
    • S(b);SBLOCK::QAB1(A)
    • S(b);S_CUTR(f)::R1(J)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • B(a);XS(E)::QAR1(A),XP(d)
      • Refutation
        • K(e);N_SPINP(d),P-FLIGHT,XB(D)
    • Try
      • B(K);
      • Threat
        • B(K)+R(I),DCHECK
      • Vars
        • B(i);::B(K)+R(I),DCHECK,XB(i)
      • Refutation
        • P(h);XB(K)
    • Try
      • B(K);
      • Threat
        • B(K)
      • Vars
        • B(i);N_GUARD::R(I),XB(i)
      • Refutation
        • B(i);
    • Try
      • R(J);
      • Threat
        • B(K)
      • Vars
        • B(i);N_GUARD::R(I),XB(i)
      • Refutation
        • R(f);
    • Try
      • R(J);CHECK
      • Refutation
        • B(i);P_SPINB(i)
    • Try
      • R(J);
      • Threat
        • B(K)
      • Vars
        • B(i);N_GUARD::R(I),XB(i)
      • Refutation
        • S(j);XR(J)
    • Try
      • R(J);
      • Threat
        • B(K)
      • Vars
        • B(i);N_GUARD::R(I),XB(i)
      • Refutation
        • S(j);
  • Actual
    • R(J);
    • Threat
      • R1(J)
    • Vars
      • K(e);N_SPINP(d),S_FLIGHT,XR(J)::S(E)
      • B(i);SBLOCK,XR(J)::B(K)
      • S(b);SBLOCK::QAB1(A)
      • S(b);S_CUTR(f)::R1(J)
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