MESON Chess Problem Database

Problem Display
PID: 263026 (2r1b3/3nB3/4R3/1NPk1p2/2pN1K1p/4pn1r/1PB1p1Q1/2R5 w - - 0 1)

Dyachuk, Vasyl Vasilovich

2nd Prize, SuperProblem, 2018

2r1b3/3nB3/4R3/1NPk1p2/2pN1K1p/4pn1r/1PB1p1Q1/2R5

#2

10 + 11

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Qxf3#
    • 1...Rh2
      • 2.Qxf3#
    • 1...Rxc5
      • 2.Rd6#
    • 1...Sxc5
      • 2.Re5#
      • 2.Rd6#
    • 1...Se5
      • 2.Rxe5#
    • 1...Sb6
      • 2.Re5#
    • 1...Sf6
      • 2.Re5#
    • 1...Sb8
      • 2.Re5#
    • 1...Sf8
      • 2.Re5#
    • 1...c3
      • 2.Bb3#
  • Tries
    • 1.Kxf5?
      • threat
        • 2.Be4#
      • 1...Sxc5
        • 2.Re5#
        • 2.Rd6#
      • 1...c3
        • 2.Bb3#
      • 1...Sf6
        • 2.Re5#
      • 1...Bg6+!
    • 1.Bd3?
      • threat
        • 2.Bxc4#
      • 1...Rxc5
        • 2.Rd6#
      • 1...cxd3
        • 2.Rd6#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sb6
        • 2.Re5#
      • 1...c3!
    • 1.Qg8?
      • threat
        • 2.Re5#
      • 1...Sxd4
        • 2.Sc3#
      • 1...Sfe5
        • 2.Rxe5#
      • 1...Sde5
        • 2.Rxe5#
      • 1...Bf7!
    • 1.b4?
      • threat
        • 2.Rd6#
      • 1...cxb4 ep
        • 2.Bxb3#
      • 1...c3
        • 2.Bb3#
      • 1...Rc6!
  • Keys
    • 1.Bb3!
      • threat
        • 2.Bxc4#
      • 1...Rxc5
        • 2.Rd6#
      • 1...cxb3
        • 2.Rd6#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sb6
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(d);N_GUARD::QAB(D),XS(c)
    • R(j);SBLOCK,XP(H)::R1(I)
    • S(i);N_GUARD::R1(I),XS(i)
    • S(i);N_GUARD::R1(I)
    • P(e);OGATEB::B(C)
  • Tries
    • Try
      • K(F);P-FLIGHT,XP(h)
      • Threat
        • B(C)
      • Vars
        • P(e);OGATEB::B(C)
        • S(i);N_GUARD::R1(I)
      • Refutation
        • B(k);CHECK
    • Try
      • B(C);
      • Threat
        • B(C),XP(e)
      • Vars
        • R(j);SBLOCK,XP(H)::R1(I)
        • P(e);XB(C)::R1(I)
        • S(i);N_GUARD::R1(I),XS(i)
        • S(i);N_GUARD::R1(I)
      • Refutation
        • P(e);
    • Try
      • Q(D);N_PINS(c)
      • Threat
        • QAB(D)+R(I),DCHECK
      • Vars
        • S(c);SBLOCK,XS(E)::S(G)
        • S(c);::QAB(D)+R(I),DCHECK,XS(c)
        • S(i);::QAB(D)+R(I),DCHECK,XS(i)
      • Refutation
        • B(k);
    • Try
      • P(B);
      • Threat
        • R1(I)
      • Vars
        • P(e);EP,OGATEB,XP(B)::B(C),XP(e)
        • P(e);OGATEB::B(C)
      • Refutation
        • R(j);
  • Actual
    • B(C);P_PINP(e)
    • Threat
      • B(C),XP(e)
    • Vars
      • R(j);SBLOCK,XP(H)::R1(I)
      • P(e);N_SPINP(e),XB(C)::R1(I)
      • S(i);N_GUARD::R1(I),XS(i)
      • S(i);N_GUARD::R1(I)
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