MESON Chess Problem Database

Problem Display
PID: 262719 (8/2R3pB/1Qp1p1K1/2Rp4/2b1kPp1/1Nnrn1P1/2PP4/B3N3 w - - 0 1)

Agapov, Igor Alexeyevich

2nd Comm., SuperProblem, 2018

8/2R3pB/1Qp1p1K1/2Rp4/2b1kPp1/1Nnrn1P1/2PP4/B3N3

#2

12 + 10

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Kxg7#
    • 1...Sf1
      • 2.Kxg7#
    • 1...Sxc2
      • 2.Kxg7#
    • 1...Sg2
      • 2.Kxg7#
    • 1...d4
      • 2.Re5#
  • Tries
    • 1.Re7?
      • threat
        • 2.Rxe6#
      • 1...d4
        • 2.Re5#
      • 1...e5
        • 2.Rxe5#
      • 1...Bxb3!
  • Keys
    • 1.Rxd5!
      • threat
        • 2.Re5#
      • 1...Kxd5
        • 2.Qxc6#
      • 1...Rxd5
        • 2.Qxe3#
      • 1...Bxd5
        • 2.cxd3#
      • 1...Scxd5
        • 2.Sc5#
      • 1...Sexd5
        • 2.Kxg7#
      • 1...cxd5
        • 2.Qxe6#
      • 1...exd5
        • 2.Re7#
      • 1...e5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 5
  • Sets
    • S(c);N_GUARD::B(L)+K(J),XP(j)
    • S(c);N_GUARD,XP(C)::B(L)+K(J),XP(j)
    • P(g);OGATE::R1(H)
  • Tries
    • Try
      • R(K);P_PINP(i)
      • Threat
        • R(K),XP(i)
      • Vars
        • P(g);OGATE::R1(H)
        • P(i);OGATE::R1(K),XP(i)
      • Refutation
        • B(d);XS(E)
  • Actual
    • R(H);XP(g)
    • Threat
      • R1(H)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(H)::QAB1(I),XP(h)
      • R(b);N_GUARD,SBLOCK,XR(H)::QAR1(I),XS(c)
      • B(d);N_GUARD,SBLOCK,XR(H)::P(C),XR(b)
      • S(a);SBLOCK,XR(H)::S(E)
      • S(c);N_GUARD,SBLOCK,XR(H)::B(L)+K(J),XP(j)
      • P(h);OGATE,XR(H)::QAR2(I),XP(i)
      • P(i);OGATEB,SBLOCK,XR(H)::R(K)
      • P(i);::R1(H),XP(i)
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