MESON Chess Problem Database

Problem Display
PID: 168925 (4BB2/5p2/8/N1n4r/1kn2R2/pNp5/p4K1p/4Qb1r w - - 0 1)

Zamanov, Vidadi

SuperProblem, 2015

4BB2/5p2/8/N1n4r/1kn2R2/pNp5/p4K1p/4Qb1r

#2

7 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rh3
      • 2.Bxc5#
    • 1...Rh4
      • 2.Bxc5#
    • 1...Rh6
      • 2.Bxc5#
    • 1...Rh7
      • 2.Bxc5#
    • 1...Rh8
      • 2.Bxc5#
    • 1...Bg2
      • 2.Rxc4#
    • 1...Bh3
      • 2.Rxc4#
    • 1...f5
      • 2.Bxc5#
  • Tries
    • 1.Qxf1?
      • threat
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...Rh4
        • 2.Bxc5#
        • 2.Qxc4#
      • 1...Rf5
        • 2.Qxc4#
      • 1...Rxf1+!
    • 1.Qe4?
      • threat
        • 2.Qb7#
      • 1...c2
        • 2.Qe1#
      • 1...Rh6
        • 2.Bxc5#
      • 1...Bg2
        • 2.Qxc4#
      • 1...Rd5!
    • 1.Qe5?
      • threat
        • 2.Bxc5#
        • 2.Qb8#
      • 1...Rh6
        • 2.Bxc5#
        • 2.Qxc5#
      • 1...Bg2
        • 2.Bxc5#
        • 2.Rxc4#
      • 1...c2
        • 2.Bxc5#
        • 2.Qe1#
      • 1...Rxe5!
    • 1.Qe6?
      • threat
        • 2.Qb6#
      • 1...c2
        • 2.Qe1#
      • 1...Rh6
        • 2.Bxc5#
      • 1...fxe6!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Qb7#
      • 1...c2
        • 2.Qe1#
      • 1...Rh6
        • 2.Qxc5#
      • 1...Bg2
        • 2.Rxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(j);N_GUARD::B(G),XS(i)
    • B(a);N_GUARD::R1(D),XS(h)
    • P(k);S_CUTR(j)::B(G),XS(i)
  • Tries
    • Try
      • Q(A);N_PINP(f),XB(a)
      • Threat
        • DUALS(2)
      • Vars
        • R(j);P_PINR(D)::QAR1(A),XS(h)
      • Refutation
        • R(b);CHECK,XQ(A)
    • Try
      • Q(A);N_PINP(f)
      • Threat
        • QAR(A)
      • Vars
        • P(f);OGATEB::QAB(A)
        • R(j);N_GUARD::B(G),XS(i)
        • B(a);N_GUARD::QAR1(A),XS(h)
      • Refutation
        • R(j);
    • Try
      • Q(A);N_PINP(f)
      • Threat
        • DUALS(2)
      • Refutation
        • R(j);XQ(A)
    • Try
      • Q(A);N_PINP(f)
      • Threat
        • QAR2(A)
      • Vars
        • P(f);OGATEB::QAB(A)
        • R(j);N_GUARD::B(G),XS(i)
      • Refutation
        • P(k);XQ(A)
  • Actual
    • Q(A);N_PINP(f)
    • Threat
      • QAR(A)
    • Vars
      • P(f);OGATEB::QAB(A)
      • R(j);N_GUARD::QAB1(A),XS(i)
      • B(a);N_GUARD::R1(D),XS(h)
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