MESON Chess Problem Database

Problem Display
PID: 170071 (5N1b/3K4/4R3/2ppp3/2pk1p2/2R5/8/BQn4b w - - 0 1)

Basisty, Mark Borisovich

Tkachenko, Sergiy Ivanovich

Vasilenko, Anatoly Grigorovich

StrateGems, 2017

5N1b/3K4/4R3/2ppp3/2pk1p2/2R5/8/BQn4b

#2

6 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Rd3#
    • 1...e4
      • 2.Rd3#
  • Tries
    • 1.Ra6?
      • threat
        • 2.Se6#
      • 1...e4
        • 2.Rd3#
      • 1...Sd3!
    • 1.Rb6?
      • threat
        • 2.Se6#
      • 1...e4
        • 2.Rd3#
      • 1...Sd3!
    • 1.Rc6?
      • threat
        • 2.Se6#
      • 1...e4
        • 2.Rd3#
      • 1...Sd3!
    • 1.Rd6?
      • threat
        • 2.Se6#
      • 1...e4
        • 2.Rd3#
      • 1...Sd3!
    • 1.Rf6?
      • threat
        • 2.Se6#
      • 1...e4
        • 2.Rd3#
      • 1...Sd3!
    • 1.Rg6?
      • threat
        • 2.Se6#
      • 1...e4
        • 2.Rd3#
      • 1...Sd3!
    • 1.Rh6?
      • threat
        • 2.Se6#
      • 1...e4
        • 2.Rd3#
      • 1...Sd3!
    • 1.Re7?
      • threat
        • 2.Se6#
      • 1...e4
        • 2.Rd3#
      • 1...Sd3!
    • 1.Re8?
      • threat
        • 2.Se6#
      • 1...e4
        • 2.Rd3#
      • 1...Sd3!
    • 1.Qg6?
      • threat
        • 2.Rd3#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Be4
        • 2.Qg1#
      • 1...e4!
    • 1.Qh7?
      • threat
        • 2.Rd3#
      • 1...Sd3
        • 2.Rxd3#
      • 1...e4
        • 2.Qxh8#
      • 1...Be4!
  • Keys
    • 1.Rxe5!
      • threat
        • 2.Rd3#
      • 1...Kxe5
        • 2.Re3#
      • 1...Bxe5
        • 2.Se6#
      • 1...Sd3
        • 2.Rxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(b);SBLOCK::B(A)+R(C),DCHECK
    • P(h);::B(A)+R(C),DCHECK
  • Tries
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • P(h);SBLOCK::B(A)+R(C),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • P(h);SBLOCK::B(A)+R(C),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • P(h);SBLOCK::B(A)+R(C),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(D);P_PINP(g)
      • Threat
        • S(F)
      • Vars
        • P(h);SBLOCK::B(A)+R(C),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • P(h);SBLOCK::B(A)+R(C),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • P(h);SBLOCK::B(A)+R(C),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • P(h);SBLOCK::B(A)+R(C),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • P(h);::B(A)+R(C),DCHECK
      • Refutation
        • S(a);
    • Try
      • R(D);
      • Threat
        • S(F)
      • Vars
        • P(h);::B(A)+R(C),DCHECK
      • Refutation
        • S(a);
    • Try
      • Q(B);
      • Threat
        • B(A)+R(C),DCHECK
      • Vars
        • S(a);::B(A)+R(C),DCHECK,XS(a)
        • B(b);SBLOCK::QAB(B)
      • Refutation
        • P(h);
    • Try
      • Q(B);
      • Threat
        • B(A)+R(C),DCHECK
      • Vars
        • S(a);::B(A)+R(C),DCHECK,XS(a)
        • P(h);OGATEB::QAB(B),XB(i)
      • Refutation
        • B(b);
  • Actual
    • R(D);XP(h)
    • Threat
      • B(A)+R(C),DCHECK
    • Vars
      • K(d);S_FLIGHT,XR(D)::B(A)+R(C),DCHECK
      • B(i);SBLOCK,XR(D)::S(F)
      • S(a);::B(A)+R(C),DCHECK,XS(a)
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