MESON Chess Problem Database

Problem Display
PID: 268725 (7Q/p6B/1p1N3B/1p6/pP1np1Rp/K1k5/PRb1P3/7r w - - 0 1)

Basisty, Mark Borisovich

Novitski, Petr Adrinovich

Zaldo MT (Problemas), 2019

7Q/p6B/1p1N3B/1p6/pP1np1Rp/K1k5/PRb1P3/7r

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Bd2#
    • 1...Bd1
      • 2.Bd2#
    • 1...Bb3
      • 2.Bd2#
    • 1...Bd3
      • 2.Bd2#
    • 1...e3
      • 2.Rxc2#
      • 2.Qxd4#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qxd4#
      • 1...Kc4
        • 2.Qxd4#
      • 1...Rd1!
    • 1.Bxe4?
      • threat
        • 2.Rxc2#
      • 1...Bxe4
        • 2.Bd2#
      • 1...Bb1
        • 2.Bd2#
      • 1...Bd1
        • 2.Bd2#
      • 1...Bb3
        • 2.Bd2#
      • 1...Bd3
        • 2.Bd2#
      • 1...Rc1!
    • 1.Bg8?
      • threat
        • 2.Sxb5#
      • 1...e3
        • 2.Qxd4#
      • 1...Bd3
        • 2.Bd2#
      • 1...a6!
    • 1.Rg3+?
      • 1...Bd3
        • 2.Bd2#
      • 1...e3
        • 2.Rxc2#
      • 1...hxg3!
    • 1.Rxe4?
      • threat
        • 2.Qxd4#
      • 1...Bxe4
        • 2.Bd2#
      • 1...Rd1!
    • 1.Rg7?
      • threat
        • 2.Rc7#
      • 1...Sxe2
        • 2.Rg3#
      • 1...Bb3
        • 2.Bd2#
      • 1...Bd3
        • 2.Bd2#
      • 1...e3!
  • Keys
    • 1.Rg8!
      • threat
        • 2.Rc8#
      • 1...e3
        • 2.Rxc2#
      • 1...Bb3
        • 2.Bd2#
      • 1...Bd3
        • 2.Bd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(b);::B(H)
  • Tries
    • Try
      • S(G);
      • Threat
        • QAB1(J),XS(e)
      • Vars
        • K(c);N_SPINS(e),P-FLIGHT::QAR1(J),XS(e)
      • Refutation
        • R(a);
    • Try
      • B(I);XP(f)
      • Threat
        • R1(B),XB(b)
      • Vars
        • B(b);XB(I)::B(H)
        • B(b);::B(H)
      • Refutation
        • R(a);
    • Try
      • B(I);
      • Threat
        • S(G),XP(h)
      • Vars
        • P(f);::QAB1(J),XS(e)
        • B(b);::B(H)
      • Refutation
        • P(j);
    • Try
      • R(F);CHECK
      • Vars
        • B(b);P_SPINB(b)::B(H)
        • P(f);P_SPINP(f)::R1(B),XB(b)
      • Refutation
        • P(g);XR(F)
    • Try
      • R(F);XP(f)
      • Threat
        • QAB1(J),XS(e)
      • Vars
        • B(b);XR(F)::B(H)
      • Refutation
        • R(a);
    • Try
      • R(F);N_PINS(e)
      • Threat
        • R(F)
      • Vars
        • S(e);XP(C)::QAB(J)+R(F),DCHECK
        • B(b);::B(H)
      • Refutation
        • P(f);
  • Actual
    • R(F);
    • Threat
      • R(F)
    • Vars
      • P(f);::R1(B),XB(b)
      • B(b);::B(H)
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